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PMC10013922
Introduction
There have been previous economic evaluations of maternal GBS vaccination in the United States [12–14], Europe [15–17], and sub-Saharan Africa [18–20].
10.1016/j.vaccine.2017.07.108
PMC5723707
PMC10013922
Introduction
Such an evaluation is central to a Full Value of Vaccines Assessment (FVVA), which WHO has identified as key to catalysing vaccine development and subsequent equitable access [21,22].
10.1016/j.vaccine.2017.09.048
PMC11369760
PMC10013922
Introduction
To inform the WHO GBS vaccine FVVA [23], we conducted the first global economic evaluation of maternal GBS vaccination in 183 countries, drawing on recently updated global disease burden estimates for GBS [1].
10.1016/S2214-109X(22)00093-6
PMC9090904
PMC10013922
Methods
The Bayesian disease model has been described in detail elsewhere; its structure is reflected in our methods below [1,25].
10.1016/S2214-109X(22)00093-6
PMC9090904
PMC10013922
Methods
The Bayesian disease model has been described in detail elsewhere; its structure is reflected in our methods below [1,25].
10.1371/journal.pcbi.1009001
PMC8202927
PMC10013922
Methods
We parameterised the probabilities of different GBS-related outcomes in our model using posterior samples of key epidemiological parameters from the global burden estimates reported by Gonçalves and colleagues [1].
10.1016/S2214-109X(22)00093-6
PMC9090904
PMC10013922
Methods
There are no data on CFRs for infants with EOGBS without access to care, so the authors considered 2 scenarios where they had either 90% CFR (following the approach of Seale and colleagues [3]) or the same CFR as other infants with EOGBS.
10.1093/cid/cix664
PMC5849940
PMC10013922
Methods
The excess risk attributable to iGBS exposure was calculated assuming a counterfactual risk of mild or moderate and severe NDI among unexposed children from a large Danish cohort study [27].
10.1016/S2352-4642(21)00022-5
PMC8131199
PMC10013922
Methods
Following the approach used in the burden estimation, our base case analysis included only the excess risk of moderate or severe NDI, which is likely to be more consistent across settings, but include mild NDI as a sensitivity analysis [1,4].
10.1016/S2214-109X(22)00093-6
PMC9090904
PMC10013922
Methods
Following the approach used in the burden estimation, our base case analysis included only the excess risk of moderate or severe NDI, which is likely to be more consistent across settings, but include mild NDI as a sensitivity analysis [1,4].
10.1016/j.eclinm.2022.101358
PMC9142788
PMC10013922
Methods
To estimate country-specific GBS-associated stillbirth risk, national stillbirth estimates from the WHO Global Health Observatory [28] were combined with regional estimates of the proportion of stillbirths caused by GBS [1].
10.1016/S2214-109X(22)00093-6
PMC9090904
PMC10013922
Methods
For the risk of GBS-associated prematurity, we used national data on the proportion of preterm births [29] together with the global odds ratio for the association between GBS maternal colonisation and preterm births [1].
10.1016/S2214-109X(18)30451-0
PMC6293055
PMC10013922
Methods
For the risk of GBS-associated prematurity, we used national data on the proportion of preterm births [29] together with the global odds ratio for the association between GBS maternal colonisation and preterm births [1].
10.1016/S2214-109X(22)00093-6
PMC9090904
PMC10013922
Methods
For the acute iGBS episode, we approximated QALY loss, assuming 29 days duration based on the average length of stay among studies in a recent systematic review of the acute costs of infant sepsis and meningitis [31], and applied health state utility decrements for hospitalisation with acute sepsis or meningitis from a US study in young children [32].
10.1016/j.vaccine.2020.07.050
PMC7482437
PMC10013922
Methods
For survivors with long-term sequelae, we applied utility decrements from birth for mild, moderate, and severe NDI to each year of life and, conservatively, given previous studies provide evidence of post-acute mortality after bacterial meningitis [33,34], assumed no change in life expectancy.
10.1371/journal.pone.0137095
PMC4564213
PMC10013922
Methods
For survivors with long-term sequelae, we applied utility decrements from birth for mild, moderate, and severe NDI to each year of life and, conservatively, given previous studies provide evidence of post-acute mortality after bacterial meningitis [33,34], assumed no change in life expectancy.
10.1371/journal.pone.0009662
PMC2837384
PMC10013922
Methods
Although clinical studies have demonstrated immunogenicity of candidate GBS vaccines, to date, there have been no Phase III efficacy trials [10].
10.2147/IDR.S203454
PMC7196769
PMC10013922
Methods
We also assumed no effect on GBS-associated prematurity because (i) the WHO PPC does not specify that GBS vaccines must reduce colonisation, which is most likely pathway for preventing GBS-associated prematurity, and (ii) the association between GBS maternal colonisation and higher risk of prematurity may be confounded [37].
10.1093/cid/cix661
PMC5850429
PMC10013922
Methods
For the latter scenario, we estimated the proportion of preterm births that are potentially protected through vaccination by combining the distribution of preterm births by gestational age [38] with the timing of vaccine visits based on country-specific ANC data [39] (S1 Appendix A2.5).
10.1186/1742-4755-10-S1-S2
PMC3828585
PMC10013922
Methods
For the latter scenario, we estimated the proportion of preterm births that are potentially protected through vaccination by combining the distribution of preterm births by gestational age [38] with the timing of vaccine visits based on country-specific ANC data [39] (S1 Appendix A2.5).
10.1371/journal.pone.0237718
PMC7446781
PMC10013922
Methods
To estimate acute healthcare costs, we combined one GBS-specific cost estimate from a study in the United Kingdom (UK) [42], with the findings from a systematic review on the acute costs of infant sepsis and meningitis [43], and result of a recent study reporting the acute costs of neonatal bacterial sepsis and meningitis in Mozambique and South Africa [44].
10.1093/cid/ciab815
PMC8776306
PMC10013922
Methods
Annual costs among survivors with moderate and severe NDI were parameterised as a fixed proportion of between 4% and 28% of the acute cost estimate in each country, based on the range between a UK study of costs in children with NDI [35] and a US study of costs in adults with disabilities [45].
10.1097/MLR.0000000000001371
PMC7505687
PMC10013922
Methods
For the vaccine programme costs, we extrapolated results from a systematic review of maternal vaccination delivery costs using regression against GDP per capita (S1 Appendix A2.7) [31].
10.1016/j.vaccine.2020.07.050
PMC7482437
PMC10013922
Methods
We used previously estimated vaccine prices by World Bank country income group, which were based on a combination of price benchmarking against other vaccines and cost of goods analysis: $50 for high-income countries; $15 for upper-middle-income countries; and $3.50 for lower-middle-income and low-income countries [46].
10.1093/cid/ciab782
PMC8775646
PMC10013922
Methods
Here, we use 2 commonly cited thresholds: (i) country gross domestic product per capita [47]; and (ii) published thresholds based on empirical estimates of the health opportunity cost of healthcare spending (S1 Appendix A2.8) [48,49].
10.12688/gatesopenres.13201.1
PMC7851575
PMC10013922
Methods
Here, we use 2 commonly cited thresholds: (i) country gross domestic product per capita [47]; and (ii) published thresholds based on empirical estimates of the health opportunity cost of healthcare spending (S1 Appendix A2.8) [48,49].
10.1016/j.jval.2016.02.017
PMC5193154
PMC10013922
Methods
Here, we use 2 commonly cited thresholds: (i) country gross domestic product per capita [47]; and (ii) published thresholds based on empirical estimates of the health opportunity cost of healthcare spending (S1 Appendix A2.8) [48,49].
10.1136/bmjgh-2018-000964
PMC6231096
PMC10013922
Methods
In many settings, these are not assigned any health or disability weight, but it has been argued that they should be assigned a QALY loss close or the same as that of the death of a newborn [50].
10.1111/bioe.12120
PMC4706157
PMC10013922
Discussion
Competitive and finely tiered vaccine prices could also be beneficial for manufacturers, with financial analyses suggesting that high global demand is needed to ensure the development costs of a GBS vaccine can be recouped [46].
10.1093/cid/ciab782
PMC8775646
PMC10013922
Discussion
Previous analyses have estimated cost-effectiveness in the US [12–14], the Netherlands [17], UK [15,16], South Africa [19], The Gambia [18], and 37 Gavi countries in Africa [20].
10.1136/bmj.39325.681806.AD
PMC1995477
PMC10013922
Discussion
Previous analyses have estimated cost-effectiveness in the US [12–14], the Netherlands [17], UK [15,16], South Africa [19], The Gambia [18], and 37 Gavi countries in Africa [20].
10.1016/j.vaccine.2017.07.108
PMC5723707
PMC10013922
Discussion
These prior estimates suggested cost-effectiveness of vaccination ranged from $320 to 573 per DALY averted in Gavi-eligible countries [20], to $3,550 per DALY averted in South Africa [19], to over $50,000 per QALY in the US [12,13], which is broadly consistent with our results.
10.1016/j.vaccine.2017.07.108
PMC5723707
PMC10013922
Supporting information
These estimates were provided by the authors of [39] and were calculated using input data on antenatal coverage that was available at the time of their analysis.
10.1371/journal.pone.0237718
PMC7446781
PMC10013922
Supporting information
Table H. Cost data from [31] used to extrapolate used to extrapolate country-specific estimates of vaccine delivery costs per dose.
10.1016/j.vaccine.2020.07.050
PMC7482437
PMC10015103
Discussion
Among a cohort of 51 children with history of MIS-C who received COVID-19 vaccination, the vaccine was found to be safe and well tolerated during short-term follow-up [11].
10.1097/INF.0000000000003803
PMC9935230
PMC10015776
Background
Considerable evidence has emerged indicating that the microbiome is an important contributor to an individual’s health [2].
10.1126/science.1208344
PMC3368382
PMC10015776
Background
This has been illustrated by links between the gut microbiome and numerous diseases, including irritable bowel syndrome [3], Crohn’s disease [4], type 2 diabetes [5], cardiovascular disease [6], and Parkinson’s disease (PD) [7].
10.1136/gutjnl-2016-313235
PMC5531220
PMC10015776
Background
This has been illustrated by links between the gut microbiome and numerous diseases, including irritable bowel syndrome [3], Crohn’s disease [4], type 2 diabetes [5], cardiovascular disease [6], and Parkinson’s disease (PD) [7].
10.1038/nm.3145
PMC3650111
PMC10015776
Background
Diet, being one of these factors, has the greatest known long-term interaction with the gut microbiome [8].
10.1093/ajcn/nqaa350
PMC7948864
PMC10015776
Background
Thus, a deep understanding of the relationship between diet and the gut microbiome and the consequential impact on disease processes holds promise for developing personalized dietary intervention strategies to modulate and maintain a healthy microbiome population [9, 10].
10.1017/S0007114514004127
PMC4405705
PMC10015776
Background
Thus, a deep understanding of the relationship between diet and the gut microbiome and the consequential impact on disease processes holds promise for developing personalized dietary intervention strategies to modulate and maintain a healthy microbiome population [9, 10].
10.1093/jn/nxz154
PMC6825832
PMC10015776
Background
Diet has a direct impact on the microbial community in the gut, which governs the activity of the intestinal ecosystem and can have considerable implications for an individual’s health [11, 12].
10.3389/fimmu.2017.00538
PMC5421151
PMC10015776
Background
These discoveries are generally based on an elaborate experimental design using model organisms [13] or dietary interventions [15–17].
10.1038/nature12820
PMC3957428
PMC10015776
Background
Recent observational studies suggest that long-term diets could be associated with the microbiome [18], and this can further affect overall health.
10.1038/s41591-020-01183-8
PMC8353542
PMC10015776
Background
Hence, using a data-driven approach, it is able to divide a population into multiple subcohorts with distinct microbiological signatures for health that can be best described by nutrient combinations, resulting in what we term “nutritional-ecotypes.” These subcohorts can be thought of as diet-based latent classes where they capture interaction between the constraints imposed by nutrient intake of individuals on the community dynamics of their microbiomes [22, 23].
10.3389/fnut.2019.00041
PMC6465639
PMC10015776
Background
Methods to discover such diet-based latent classes could be hypothesis-driven based on prior knowledge [24, 25] or guided by an unsupervised statistical learning method, such as clustering [26], followed by latent class analysis [27].
10.1017/S0007114518001800
PMC6137382
PMC10015776
Background
Methods to discover such diet-based latent classes could be hypothesis-driven based on prior knowledge [24, 25] or guided by an unsupervised statistical learning method, such as clustering [26], followed by latent class analysis [27].
10.1136/bmj.k2396
PMC5996879
PMC10015776
Background
Methods to discover such diet-based latent classes could be hypothesis-driven based on prior knowledge [24, 25] or guided by an unsupervised statistical learning method, such as clustering [26], followed by latent class analysis [27].
10.1093/advances/nmz049
PMC6855959
PMC10015776
Background
Methods to discover such diet-based latent classes could be hypothesis-driven based on prior knowledge [24, 25] or guided by an unsupervised statistical learning method, such as clustering [26], followed by latent class analysis [27].
10.3389/fimmu.2021.651709
PMC8111016
PMC10015776
Background
Consequently, classification models built within a subcohort defined just by diet (or microbiome) will not necessarily improve prediction of the health/disease state [28].
10.1186/s40168-021-01018-9
PMC8004395
PMC10015776
Background
Kim and colleagues [31] have used it for combining clinical data and genomics data.
10.1093/bioinformatics/btq107
PMC2859127
PMC10015776
Results
This approach has two distinct components: first, a gating network aimed at estimating latent classes shaped by nutritional intake, and second, an experts network aimed at modeling the relationship between the microbiota composition and the health state within each latent class [31, 32].
10.1093/bioinformatics/btq107
PMC2859127
PMC10015776
Results
We further assessed NEMoE’s capabilities on enterotype-separated subcohorts [35] within our PD dataset.
10.1038/s41564-017-0072-8
PMC5832044
PMC10015776
Results
Enterotype, a widely used concept in microbiome research, refers to the categorization of an individual’s microbiomes by the variance in composition [2, 36].
10.1126/science.1208344
PMC3368382
PMC10015776
Results
Enterotype, a widely used concept in microbiome research, refers to the categorization of an individual’s microbiomes by the variance in composition [2, 36].
10.1038/nature09944
PMC3728647
PMC10015776
Results
[19, 20, 38–42]Fig.
10.1038/s41531-020-0112-6
PMC7293233
PMC10015776
Results
[37]) all other datasets showed decreasing Fusicatenibacter in PD.
10.3389/fnins.2019.01184
PMC6883725
PMC10015776
Results
We processed the publicly available datasets using the dada2 pipeline [49](v1.16) and taxonomy reference “silva 138” [48, 50].
10.1038/nmeth.3869
PMC4927377
PMC10015776
Results
We processed the publicly available datasets using the dada2 pipeline [49](v1.16) and taxonomy reference “silva 138” [48, 50].
10.1093/nar/gks1219
PMC3531112
PMC10015776
Results
In all but one dataset [37], Fusicatenibacter had significantly lower relative abundance among PD individuals.
10.3389/fnins.2019.01184
PMC6883725
PMC10015776
Results
5), verifying NEMoE’s ability to identify consensus microbial signatures of PD in multiple independent cohorts.Table 2Summary of eight publicly available Parkinson’s disease microbiome studies used for validation of the NEMoE modelStudyDesignCountrySample sizeSamplingDNA extraction16S regionENA Accession NumberLubomski_0 [19, 39]Lubomski_6Lubomski_12LongitudinalAustralia74PD, 74HCHome collection, stored at −80 °CMP Biomedicals FastDNATM SPIN KitV3-V4PRJNA808166Wallen_1 [36]Cross-sectionalUSA323PD, 184HCHome collection, swabs, stored at −20 °CMoBio PowerSoil DNA Isolation KitV4PRJNA601994Wallen_2 [36, 43]Cross-sectionalUSA197PD, 130HCSwabs, delivered at RTMoBio PowerMag Soil kitV4PRJNA601994Aho (baseline) [44]Aho (follow-up)LongitudinalFinland64PD, 64HCHome collection, DNA stabilizer, stored in fridgePSP-Spin Stool KitV3-V4PRJEB27564Weis [45]Cross-sectionalGermany34PD, 25HCMED AUXIL fecal collector setFastDNA Spin KitV4-V5PRJEB30615Pietrucci [46]Cross-sectionalItaly80PD, 72HCHome collection, DNA stabilizerPSP-Spin Stool KitV3-V4PRJNA510730Scheperjans [47]Cross-sectionalFinland72PD, 72HCHome collection, DNA stabilizer, stored in fridgePSP-Spin Stool KitV1-V3PRJEB4927Jin [48]Cross-sectionalChina72PD, 68HCNANAV3-V4PRJEB588834Studies Lubomski_0, Lubomski_6, and Lubomski_12 were part of the same longitudinal data set by Lubomski and colleagues [2] and they represent samples that were measured at 0, 6, and 12 months, respectivelyStudies Aho (baseline) and Aho (follow-up) were part of the same longitudinal data set by Aho and colleagues [44].
10.1038/nature09944
PMC3728647
PMC10015776
Results
5), verifying NEMoE’s ability to identify consensus microbial signatures of PD in multiple independent cohorts.Table 2Summary of eight publicly available Parkinson’s disease microbiome studies used for validation of the NEMoE modelStudyDesignCountrySample sizeSamplingDNA extraction16S regionENA Accession NumberLubomski_0 [19, 39]Lubomski_6Lubomski_12LongitudinalAustralia74PD, 74HCHome collection, stored at −80 °CMP Biomedicals FastDNATM SPIN KitV3-V4PRJNA808166Wallen_1 [36]Cross-sectionalUSA323PD, 184HCHome collection, swabs, stored at −20 °CMoBio PowerSoil DNA Isolation KitV4PRJNA601994Wallen_2 [36, 43]Cross-sectionalUSA197PD, 130HCSwabs, delivered at RTMoBio PowerMag Soil kitV4PRJNA601994Aho (baseline) [44]Aho (follow-up)LongitudinalFinland64PD, 64HCHome collection, DNA stabilizer, stored in fridgePSP-Spin Stool KitV3-V4PRJEB27564Weis [45]Cross-sectionalGermany34PD, 25HCMED AUXIL fecal collector setFastDNA Spin KitV4-V5PRJEB30615Pietrucci [46]Cross-sectionalItaly80PD, 72HCHome collection, DNA stabilizerPSP-Spin Stool KitV3-V4PRJNA510730Scheperjans [47]Cross-sectionalFinland72PD, 72HCHome collection, DNA stabilizer, stored in fridgePSP-Spin Stool KitV1-V3PRJEB4927Jin [48]Cross-sectionalChina72PD, 68HCNANAV3-V4PRJEB588834Studies Lubomski_0, Lubomski_6, and Lubomski_12 were part of the same longitudinal data set by Lubomski and colleagues [2] and they represent samples that were measured at 0, 6, and 12 months, respectivelyStudies Aho (baseline) and Aho (follow-up) were part of the same longitudinal data set by Aho and colleagues [44].
10.3389/fnut.2021.628845
PMC8138322
PMC10015776
Results
5), verifying NEMoE’s ability to identify consensus microbial signatures of PD in multiple independent cohorts.Table 2Summary of eight publicly available Parkinson’s disease microbiome studies used for validation of the NEMoE modelStudyDesignCountrySample sizeSamplingDNA extraction16S regionENA Accession NumberLubomski_0 [19, 39]Lubomski_6Lubomski_12LongitudinalAustralia74PD, 74HCHome collection, stored at −80 °CMP Biomedicals FastDNATM SPIN KitV3-V4PRJNA808166Wallen_1 [36]Cross-sectionalUSA323PD, 184HCHome collection, swabs, stored at −20 °CMoBio PowerSoil DNA Isolation KitV4PRJNA601994Wallen_2 [36, 43]Cross-sectionalUSA197PD, 130HCSwabs, delivered at RTMoBio PowerMag Soil kitV4PRJNA601994Aho (baseline) [44]Aho (follow-up)LongitudinalFinland64PD, 64HCHome collection, DNA stabilizer, stored in fridgePSP-Spin Stool KitV3-V4PRJEB27564Weis [45]Cross-sectionalGermany34PD, 25HCMED AUXIL fecal collector setFastDNA Spin KitV4-V5PRJEB30615Pietrucci [46]Cross-sectionalItaly80PD, 72HCHome collection, DNA stabilizerPSP-Spin Stool KitV3-V4PRJNA510730Scheperjans [47]Cross-sectionalFinland72PD, 72HCHome collection, DNA stabilizer, stored in fridgePSP-Spin Stool KitV1-V3PRJEB4927Jin [48]Cross-sectionalChina72PD, 68HCNANAV3-V4PRJEB588834Studies Lubomski_0, Lubomski_6, and Lubomski_12 were part of the same longitudinal data set by Lubomski and colleagues [2] and they represent samples that were measured at 0, 6, and 12 months, respectivelyStudies Aho (baseline) and Aho (follow-up) were part of the same longitudinal data set by Aho and colleagues [44].
10.1002/mds.26942
PMC5469442
PMC10015776
Results
5), verifying NEMoE’s ability to identify consensus microbial signatures of PD in multiple independent cohorts.Table 2Summary of eight publicly available Parkinson’s disease microbiome studies used for validation of the NEMoE modelStudyDesignCountrySample sizeSamplingDNA extraction16S regionENA Accession NumberLubomski_0 [19, 39]Lubomski_6Lubomski_12LongitudinalAustralia74PD, 74HCHome collection, stored at −80 °CMP Biomedicals FastDNATM SPIN KitV3-V4PRJNA808166Wallen_1 [36]Cross-sectionalUSA323PD, 184HCHome collection, swabs, stored at −20 °CMoBio PowerSoil DNA Isolation KitV4PRJNA601994Wallen_2 [36, 43]Cross-sectionalUSA197PD, 130HCSwabs, delivered at RTMoBio PowerMag Soil kitV4PRJNA601994Aho (baseline) [44]Aho (follow-up)LongitudinalFinland64PD, 64HCHome collection, DNA stabilizer, stored in fridgePSP-Spin Stool KitV3-V4PRJEB27564Weis [45]Cross-sectionalGermany34PD, 25HCMED AUXIL fecal collector setFastDNA Spin KitV4-V5PRJEB30615Pietrucci [46]Cross-sectionalItaly80PD, 72HCHome collection, DNA stabilizerPSP-Spin Stool KitV3-V4PRJNA510730Scheperjans [47]Cross-sectionalFinland72PD, 72HCHome collection, DNA stabilizer, stored in fridgePSP-Spin Stool KitV1-V3PRJEB4927Jin [48]Cross-sectionalChina72PD, 68HCNANAV3-V4PRJEB588834Studies Lubomski_0, Lubomski_6, and Lubomski_12 were part of the same longitudinal data set by Lubomski and colleagues [2] and they represent samples that were measured at 0, 6, and 12 months, respectivelyStudies Aho (baseline) and Aho (follow-up) were part of the same longitudinal data set by Aho and colleagues [44].
10.1371/journal.pone.0237779
PMC7446854
PMC10015776
Results
5), verifying NEMoE’s ability to identify consensus microbial signatures of PD in multiple independent cohorts.Table 2Summary of eight publicly available Parkinson’s disease microbiome studies used for validation of the NEMoE modelStudyDesignCountrySample sizeSamplingDNA extraction16S regionENA Accession NumberLubomski_0 [19, 39]Lubomski_6Lubomski_12LongitudinalAustralia74PD, 74HCHome collection, stored at −80 °CMP Biomedicals FastDNATM SPIN KitV3-V4PRJNA808166Wallen_1 [36]Cross-sectionalUSA323PD, 184HCHome collection, swabs, stored at −20 °CMoBio PowerSoil DNA Isolation KitV4PRJNA601994Wallen_2 [36, 43]Cross-sectionalUSA197PD, 130HCSwabs, delivered at RTMoBio PowerMag Soil kitV4PRJNA601994Aho (baseline) [44]Aho (follow-up)LongitudinalFinland64PD, 64HCHome collection, DNA stabilizer, stored in fridgePSP-Spin Stool KitV3-V4PRJEB27564Weis [45]Cross-sectionalGermany34PD, 25HCMED AUXIL fecal collector setFastDNA Spin KitV4-V5PRJEB30615Pietrucci [46]Cross-sectionalItaly80PD, 72HCHome collection, DNA stabilizerPSP-Spin Stool KitV3-V4PRJNA510730Scheperjans [47]Cross-sectionalFinland72PD, 72HCHome collection, DNA stabilizer, stored in fridgePSP-Spin Stool KitV1-V3PRJEB4927Jin [48]Cross-sectionalChina72PD, 68HCNANAV3-V4PRJEB588834Studies Lubomski_0, Lubomski_6, and Lubomski_12 were part of the same longitudinal data set by Lubomski and colleagues [2] and they represent samples that were measured at 0, 6, and 12 months, respectivelyStudies Aho (baseline) and Aho (follow-up) were part of the same longitudinal data set by Aho and colleagues [44].
10.1093/nar/gks1219
PMC3531112
PMC10015776
Results
5), verifying NEMoE’s ability to identify consensus microbial signatures of PD in multiple independent cohorts.Table 2Summary of eight publicly available Parkinson’s disease microbiome studies used for validation of the NEMoE modelStudyDesignCountrySample sizeSamplingDNA extraction16S regionENA Accession NumberLubomski_0 [19, 39]Lubomski_6Lubomski_12LongitudinalAustralia74PD, 74HCHome collection, stored at −80 °CMP Biomedicals FastDNATM SPIN KitV3-V4PRJNA808166Wallen_1 [36]Cross-sectionalUSA323PD, 184HCHome collection, swabs, stored at −20 °CMoBio PowerSoil DNA Isolation KitV4PRJNA601994Wallen_2 [36, 43]Cross-sectionalUSA197PD, 130HCSwabs, delivered at RTMoBio PowerMag Soil kitV4PRJNA601994Aho (baseline) [44]Aho (follow-up)LongitudinalFinland64PD, 64HCHome collection, DNA stabilizer, stored in fridgePSP-Spin Stool KitV3-V4PRJEB27564Weis [45]Cross-sectionalGermany34PD, 25HCMED AUXIL fecal collector setFastDNA Spin KitV4-V5PRJEB30615Pietrucci [46]Cross-sectionalItaly80PD, 72HCHome collection, DNA stabilizerPSP-Spin Stool KitV3-V4PRJNA510730Scheperjans [47]Cross-sectionalFinland72PD, 72HCHome collection, DNA stabilizer, stored in fridgePSP-Spin Stool KitV1-V3PRJEB4927Jin [48]Cross-sectionalChina72PD, 68HCNANAV3-V4PRJEB588834Studies Lubomski_0, Lubomski_6, and Lubomski_12 were part of the same longitudinal data set by Lubomski and colleagues [2] and they represent samples that were measured at 0, 6, and 12 months, respectivelyStudies Aho (baseline) and Aho (follow-up) were part of the same longitudinal data set by Aho and colleagues [44].
10.1126/science.1208344
PMC3368382
PMC10015776
Results
The same subjects were measured twice, at baseline and then later at follow-up, which was on average 2.25 years apartStudies Wallen_1 and Wallen_2 were part of two large cohort studies set by Wallen and colleagues [38]
10.1038/s41531-020-0112-6
PMC7293233
PMC10015776
Results
Aho (baseline) [44]
10.1002/mds.26942
PMC5469442
PMC10015776
Results
Studies Lubomski_0, Lubomski_6, and Lubomski_12 were part of the same longitudinal data set by Lubomski and colleagues [2] and they represent samples that were measured at 0, 6, and 12 months, respectively
10.1126/science.1208344
PMC3368382
PMC10015776
Results
Studies Aho (baseline) and Aho (follow-up) were part of the same longitudinal data set by Aho and colleagues [44].
10.1002/mds.26942
PMC5469442
PMC10015776
Results
Studies Wallen_1 and Wallen_2 were part of two large cohort studies set by Wallen and colleagues [38]
10.1038/s41531-020-0112-6
PMC7293233
PMC10015776
Results
Recent studies found that Escherichia-Shigella is a pathogenic bacteria that potentially reduces short-chain fatty acid production and produces endotoxins and neurotoxins [51, 52].
10.1186/s13024-021-00427-6
PMC7869249
PMC10015776
Results
These bacteria are known to impact immune response and constipation, with many studies reporting an overrepresentation in PD [39, 40, 42, 53].
10.1002/mdc3.12840
PMC6856467
PMC10015776
Results
Most importantly, neither of these two genera (Escherichia-Shigella, Akkermansia) was discovered in our previous analysis using the ALDE model [54], where both classes were combined for microbiome biomarker identification (Escherichia-Shigella: p-value 0.14, Akkermansia: p-value 0.55) [20].
10.1186/2049-2618-2-15
PMC4030730
PMC10015776
Discussion
Finally, the downstream impact and practical importance of NEMoE is further demonstrated by the discovery of diet-specific PD microbiome markers, such as Escherichia-Shigella and Akkermansia, which are not identified by the ALDE model [54].
10.1186/2049-2618-2-15
PMC4030730
PMC10015776
Methods
Dietary information was collected by a comprehensive Food Frequency Questionnaire and resulted in a table of nutrient intake with 23 macronutrients, presented earlier [43].
10.3389/fnut.2021.628845
PMC8138322
PMC10015776
Methods
We curated a series of datasets from eight different publicly-available microbiome studies [37, 38, 44–46, 51] to further validate results from NEMoE.
10.3389/fnins.2019.01184
PMC6883725
PMC10015776
Methods
We curated a series of datasets from eight different publicly-available microbiome studies [37, 38, 44–46, 51] to further validate results from NEMoE.
10.1038/s41531-020-0112-6
PMC7293233
PMC10015776
Methods
We curated a series of datasets from eight different publicly-available microbiome studies [37, 38, 44–46, 51] to further validate results from NEMoE.
10.1002/mds.26942
PMC5469442
PMC10015776
Methods
We curated a series of datasets from eight different publicly-available microbiome studies [37, 38, 44–46, 51] to further validate results from NEMoE.
10.1186/s13024-021-00427-6
PMC7869249
PMC10015776
Methods
All the datasets were processed using the dada2 pipeline [49] (v1.16) and microbiome taxa were annotated using taxonomy reference “silva 138” [48, 50].
10.1038/nmeth.3869
PMC4927377
PMC10015776
Methods
All the datasets were processed using the dada2 pipeline [49] (v1.16) and microbiome taxa were annotated using taxonomy reference “silva 138” [48, 50].
10.1093/nar/gks1219
PMC3531112
PMC10015776
Methods
For the longitudinal datasets Aho [44], the data for baseline and follow-up, which were collected after 2.5 years, are denoted as Aho (baseline) and Aho (follow-up) respectively.
10.1002/mds.26942
PMC5469442
PMC10015776
Methods
an arcsin square root transformation, was performed on taxa proportion [47, 55]; the arcsin transformed data were further standardized to have mean zero and unit variance (z-score).
10.1371/journal.pone.0237779
PMC7446854
PMC10015776
Methods
These transformations of nutritional features are widely used in nutri-omics studies [56, 57].
10.3233/NHA-170027
PMC5734128
PMC10020069
Introduction
Healthcare workers (HCWs), particularly those involved in COVID-19-related patient care were at a heightened risk of infection [1, 2].
10.1016/j.ijid.2021.01.013
PMC7798435
PMC10020069
Introduction
Healthcare workers (HCWs), particularly those involved in COVID-19-related patient care were at a heightened risk of infection [1, 2].
10.1016/S2468-2667(20)30164-X
PMC7491202
PMC10020069
Introduction
For example, a meta-analysis, including 28 studies from seven countries, reported that the percentage of HCWs who tested positive for COVID-19 was as high as 51.7% [1].
10.1016/j.ijid.2021.01.013
PMC7798435
PMC10020069
Introduction
A prospective cohort study among community individuals and frontline HCWs reported that compared to the community individuals, frontline HCWs had 12-fold higher risk of reporting infection [2].
10.1016/S2468-2667(20)30164-X
PMC7491202
PMC10020069
Introduction
Since the beginning of the COVID-19 pandemic, the fear of transmission of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from HCWs to the general population [3] provoked rapid stigma and discrimination towards HCWs, particularly against those involved in care of COVID-19 patients [4–6].
10.1016/S0140-6736(20)31191-0
PMC7239629
PMC10020069
Introduction
Since the beginning of the COVID-19 pandemic, the fear of transmission of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from HCWs to the general population [3] provoked rapid stigma and discrimination towards HCWs, particularly against those involved in care of COVID-19 patients [4–6].
10.3389/fpubh.2020.570459
PMC7531183
PMC10020069
Introduction
It was reported that HCWs faced discrimination in the form of verbal attacks and threats [3], avoidance from family and community members [7], avoidance from community members towards their family [8], and stigmatization [9].
10.1016/S0140-6736(20)31191-0
PMC7239629
PMC10020069
Introduction
It was reported that HCWs faced discrimination in the form of verbal attacks and threats [3], avoidance from family and community members [7], avoidance from community members towards their family [8], and stigmatization [9].
10.1016/j.jiph.2020.12.028
PMC7778368
PMC10020069
Introduction
It was reported that HCWs faced discrimination in the form of verbal attacks and threats [3], avoidance from family and community members [7], avoidance from community members towards their family [8], and stigmatization [9].
10.1080/20008198.2021.1882781
PMC8075082
PMC10020069
Introduction
Although fewer numbers of infections and death from COVID-19 have been reported in Japan compared to many other countries [10], a few studies reported that frontline HCWs and their family members have experienced discrimination [11, 12].
10.15252/emmm.202012481
PMC7207161
PMC10020069
Introduction
Although fewer numbers of infections and death from COVID-19 have been reported in Japan compared to many other countries [10], a few studies reported that frontline HCWs and their family members have experienced discrimination [11, 12].
10.1093/phe/phab003
PMC7928580
PMC10020069
Introduction
For instance, children of HCWs were refused access to kindergartens, school, and childcare facilities [11, 12].
10.1093/phe/phab003
PMC7928580
PMC10020069
Introduction
Discrimination is an important determinant of negative mental health outcomes [13].
10.1037/a0016059
PMC2747726
PMC10020069
Introduction
Pathways that can link discrimination to mental health include the direct effect of discrimination, psychological stress response to decreased positive emotion and increased negative emotion, and the deterioration of health-related behaviors [13].
10.1037/a0016059
PMC2747726
PMC10020069
Introduction
For example, previous studies from the Philippines and Spain reported that those who perceived a higher level of discrimination during the current pandemic had poor mental health [14], and depression symptoms, psychological distress and death thoughts [15].
10.1111/inm.12920
PMC8447016