bluuebunny/crossref_metadata_2025_split huggingface dataset:
Additive effect between homocysteine and low-density-lipoprotein cholesterol upon incidence of novel carotid plaque formation: data from a Chinese community-based cohort
Authors: Momin Mohetaboer , Fan Fangfang , Yang Ying , Li Jianping , Jia Jia , Zhang Yan 
Published: June 2023

Abstract
Objective
Homocysteine (HCY) has been associated with carotid plaque in cross-sectional studies, but the prospective relationship between HCY and incident carotid plaque has not been well established. The purpose of this study was to investigate the association between HCY and incidence of novel carotid plaque in a Chinese community-based population without pre-existing carotid atherosclerosis and to assess the additive effect of HCY and low-density lipoprotein cholesterol (LDL-C) on the incidence of novel plaque. Methods: At baseline, we measured HCY and other risk factors in subjects aged ≥ 40 years. All participants underwent carotid ultrasound examinations at baseline and after an average of 6.8 years of follow-up. Incidence of plaque was identified if plaque was absent at baseline, but plaque was detected at the end of follow-up. A total of 474 subjects were included in the analysis. Results: The incidence of novel carotid plaque was 24.47%. Multivariate regression analyses showed that HCY was independently associated with a 1.05-fold-higher likelihood for incident novel plaque (adjusted odds ratio [OR] = 1.05, 95% confidence interval [CI]: 1.01–1.09, P = 0.008). Using tertile 1 and tertile 2 for reference, the top HCY tertile (T3) showed a 2.28-fold-higher likelihood for incident plaque (adjusted OR = 2.28, 95%CI: 1.33–3.93, P = 0.002). The combination of HCY T3 and LDL-C ≥ 3.4 mmol/L had the highest risk for novel plaque formation (adjusted OR = 3.63, 95%CI: 1.67–7.85, P = 0.001) compared to those without either condition. In the LDL-C ≥ 3.4 mmol/L subgroup, HCY was significantly associated with incidence of plaque (adjusted OR = 1.16, 95%CI: 1.04–1.28, P = 0.005, P-interaction = 0.023). Conclusion: In the Chinese community-based population, HCY was independently associated with the incidence of novel carotid plaque. There were additive effect between HCY and LDL-C on the incidence of plaque, the highest risk was observed in individuals with both high HCY levels and LDL-C ≥ 3.4 mmol/L. Our findings suggest that HCY may be a potential target for preventing the incidence of carotid plaque, particularly in individuals with elevated LDL-C levels.
Quasi-rerandomization for observational studies
Authors: Zhang Hengtao , Su Wen , Yin Guosheng 
Published: June 2023

Abstract
Background
In the causal analysis of observational studies, covariates should be carefully balanced to approximate a randomized experiment. Numerous covariate balancing methods have been proposed for this purpose. However, it is often unclear what type of randomized experiments the balancing approaches aim to approximate; and this may cause ambiguity and hamper the synthesis of balancing characteristics within randomized experiments.

Methods
Randomized experiments based on rerandomization, known for significant improvement on covariate balance, have recently gained attention in the literature, but no attempt has been made to integrate this scheme into observational studies for improving covariate balance. Motivated by the above concerns, we propose quasi-rerandomization, a novel reweighting method, where observational covariates are rerandomized to be the anchor for reweighting such that the balanced covariates obtained from rerandomization can be reconstructed by the weighted data.

Results
Through extensive numerical studies, not only does our approach demonstrate similar covariate balance and comparable estimation precision of treatment effect to rerandomization in many situations, but it also exhibits advantages over other balancing techniques in inferring the treatment effect.

Conclusion
Our quasi-rerandomization method can approximate the rerandomized experiments well in terms of improving the covariate balance and the precision of treatment effect estimation. Furthermore, our approach shows competitive performance compared with other weighting and matching methods. The codes for the numerical studies are available at https://github.com/BobZhangHT/QReR.
A multicenter descriptive analysis of anemia management in hemodialysis patients and its association with quality of life
Authors: Al-Jabi Samah W. , Rajabi Nada S. , Koni Amer A. , Zyoud Sa’ed H. 
Published: June 2023

Abstract
Background
Appropriate management of anemia in patients with hemodialysis (HD) involves the administration of iron supplementation and erythropoietin-stimulating agents (ESAs), in addition to monitoring the response. This study aimed to evaluate the treatment of anemia in patients with HD and describe the factors associated with it and its effect on health-related quality of life (HRQOL).

Methods
The study was cross-sectional in design. The patients were included from three dialysis centers in Palestine from June to September 2018. The data collection instrument consisted of two portions; the initial portion contained demographic and clinical information on the patients, while the second consisted of the European Quality of Life 5-Dimension Scale (EQ-5D-5 L) and the visual analog scale EQ (EQ-VAS).

Results
The study included 226 patients. Their mean age (± SD) was 57 ± 13.9 years. The mean level of hemoglobin (Hb) (± SD) was 10.63 ± 1.71 g/dl, and 34.1% of the patients had a Hb level of 10-11.5 g/dl. All patients who required iron supplementation received it intravenously with a dose of 100 mg of iron sucrose. Almost 86.7% of the patients received darbepoetin alfa intravenously at 0.45 mcg/kg a week, and 24% had a Hb level > 11.5 g/dl. There were significant associations between the level of Hb and the number of comorbid diseases and the ESA that was received. However, other demographics and clinical factors did not significantly affect Hb levels. Certain variables, such as exercise, were a predictor of a higher quality of life. It should be noted that there is a significant impact of a low Hb value on the EQ-VAS scale.

Conclusions
Our study found that more than half of the patients had a Hb level below the recommended goal of Kidney Disease Improving Global Outcomes (KDIGO). Furthermore, a significant association was found between patients’ Hb level and HRQOL. Therefore, the appropriate treatment of anemia in patients with HD should be followed by adherence to the guideline recommendations, which consequently improves the HRQOL of HD patients, in addition to obtaining optimal therapy.
Growing old in China in socioeconomic and epidemiological context: systematic review of social care policy for older people
Authors: Lobanov-Rostovsky Sophia , He Qianyu , Chen Yuntao , Liu Yuyang , Wu Yanjuan , Liu Yixuan , Venkatraman Tishya , French Eric , Curry Natasha , Hemmings Nina , Bandosz Piotr , Chan Wing Kit , Liao Jing , Brunner Eric John 
Published: June 2023

Abstract
Background
From 2020 to 2050, China’s population aged ≥65 years old is estimated to more than double from 172 million (12·0%) to 366 million (26·0%). Some 10 million have Alzheimer’s disease and related dementias, to approach 40 million by 2050. Critically, the population is ageing fast while China is still a middle-income country.

Methods
Using official and population-level statistics, we summarise China’s demographic and epidemiological trends relevant to ageing and health from 1970 to present, before examining key determinants of China’s improving population health in a socioecological framework. We then explore how China is responding to the care needs of its older population by carrying out a systematic review to answer the question: ‘what are the key policy challenges to China achieving an equitable nationwide long-term care system for older people?’. Databases were screened for records published between 1st June 2020 and 1st June 2022 in Mandarin Chinese or English, reflecting our focus on evidence published since introduction of China’s second long-term care insurance pilot phase in 2020.

Results
Rapid economic development and improved access to education has led to widescale internal migration. Changing fertility policies and household structures also pose considerable challenges to the traditional family care model. To deal with increasing need, China has piloted 49 alternative long-term care insurance systems. Our findings from 42 studies (n = 16 in Mandarin) highlight significant challenges in the provision of quality and quantity of care which suits the preference of users, varying eligibility for long-term care insurance and an inequitable distribution of cost burden. Key recommendations include increasing salaries to attract and retain staff, introduction of mandatory financial contributions from employees and a unified standard of disability with regular assessment. Strengthening support for family caregivers and improving smart old age care capacity can also support preferences to age at home.

Conclusions
China has yet to establish a sustainable funding mechanism, standardised eligibility criteria and a high-quality service delivery system. Its long-term care insurance pilot studies provide useful lessons for other middle-income countries facing similar challenges in terms of meeting the long-term care needs of their rapidly growing older populations.
Availability and affordability of anticancer medicines at cancer treating hospitals in Rwanda
Authors: Rurangwa Clement , Ndayisenga Jerome , Sezirahiga Jurdas , Nyirimigabo Eric 
Published: June 2023

Abstract
Background
Availability and accessibility of anti-cancer medicines is the pillar of cancer management, and it is one of the main concerns in low-income countries including Rwanda. The objective of this study was to assess the availability and affordability of anticancer medicines at cancer-treating hospitals in Rwanda.

Methodology
A descriptive cross-sectional study was conducted at 5 cancer-treating hospitals in Rwanda. Quantitative data were collected from stock cards and software that manage medicines and included the availability of anti-cancer medicines at the time of data collection, their stock status within the last two years, and the selling price.

Results
The study found the availability of anti-cancer medicines at 41% in public hospitals at the time of data collection, and 45% within the last two years. We found the availability of anti-cancer medicines at 45% in private hospitals at the time of data collection, and 61% within the last two years. 80% of anti-cancer medicines in private hospitals were unaffordable while 20% were affordable. The public hospital that had most of the anti-cancer medicines in the public sector provided free services to the patients, and no cost was applied to the anti-cancer medicines.

Conclusion
The availability of anti-cancer medicines in cancer-treating hospitals is low in Rwanda, and most of them are unaffordable. There is a need to design strategies that can increase the availability and affordability of anti-cancer medicines, for the patients to get recommended cancer treatment options.
Effect of onset of type 2 diabetes on risks of cardiovascular disease and heart failure among new Zealanders with impaired glucose tolerance over 25 years: tapered-matched landmark analysis
Authors: Yu Dahai , Qu Bingjie , Osuagwu Uchechukwu Levi , Pickering Karen , Baker John , MBChB Richard Cutfield , Cai Yamei , Orr-Walker Brandon J , Sundborn Gerhard , Zhao Zhanzheng , Simmons David 
Published: June 2023

Abstract
Background
This study aimed to examine the association between the incident onset of T2DM and 5- and 10-year risks of CVD and HF in people with IGT identified in primary care in South and West Auckland, New Zealand (NZ) between 1994 and 2019.

Methods
We compared CVD and HF risks in patients with IGT and with/without T2D newly diagnosed within the exposure window (1–5 years). Tapered matching and landmark analysis (to account for immortal bias) were used to control for potential effects of known confounders.

Results
Among 26,794 patients enrolled with IGT, 845 had T2D newly diagnosed within 5 years from enrolment (landmark date) and 15,452 did not have T2D diagnosed. Patients progressing to T2D (vs. those not progressing) had a similar 5-year risk for CVD (hazard ratio 1.19; 95% CI 0.61–2.32) but significantly higher 10-year risk of CVD (2.45(1.40–4.29)), 5-year risk of HF (1.94(1.20–3.12)) and 10-year risk of HF (2.84(1.83–4.39). The association between the onset of T2D and risk of 10-year risk of CVD, 5-year and 10-year risk of HF was more likely among men, the socioeconomically deprived, those currently smoking, patients with higher metabolic measures and/or those with lower renal function. Patients of NZ European ethnicity had a lower 10-year risk of CVD.

Conclusions
The study suggests that the diagnosis of T2D mediates the risk of CVD and HF in people with IGT. The development of risk scores to identify and better manage individuals with IGT at high risk of T2D is warranted.
Educational training to improve opioid overdose response among health center staff: a quality improvement initiative
Authors: Stephenson Audrey , Calvo-Friedman Alessandra , Altshuler Lisa , Zabar Sondra , Hanley Kathleen 
Published: June 2023

Abstract
Background
There were seven opioid overdoses in this New York City (NYC) federally qualified health center from December 2018 through February 2019, reflecting the rising rate of overdose deaths in NYC overall at the time. In response to these overdoses, we sought to increase the readiness of health center staff to recognize and respond to opioid overdoses and decrease stigmatizing attitudes around opioid use disorder (OUD).

Methods
An hour-long training focusing on opioid overdose response was administered to clinical and non-clinical staff of all levels at the health center. This training included didactic education on topics such as the overdose epidemic, stigma around OUD, and opioid overdose response, as well as discussion. A structured assessment was administered immediately before and following the training to evaluate change in knowledge and attitudes. Additionally, participants completed a feedback survey immediately after the training to assess acceptability. Paired t-tests and analysis of variance tests were used to assess changes in pre- and post-test scores.

Results
Over 76% of the health center staff participated in the training (N = 310). There were large and significant increases in mean knowledge and attitudinal scores from pre- to post-test (p < .001 and p < .001, respectively). While there was no significant effect of profession on attitudinal change scores, profession did have a significant effect on knowledge change scores, with administrative staff, non-clinical support staff, other healthcare staff, and therapists learning significantly more than providers (p < .001). The training had high acceptability among participants from diverse departments and levels.

Conclusions
An interactive educational training increased staff’s knowledge and readiness to respond to an overdose as well as improved attitudes toward individuals living with OUD. Trial registration: This project was undertaken as a quality improvement initiative at the health center and as such was not formally supervised by the Institutional Review Board per their policies. Further, per the guidelines of the International Committee of Medical Journal Editors, registration is not necessary for clinical trials whose sole purpose is to assess an intervention’s effect on providers.
Telemedical support for prehospital emergency medical service in severe emergencies: an open-label randomised non-inferiority clinical trial
Authors: Kowark Ana , Felzen Marc , Ziemann Sebastian , Wied Stephanie , Czaplik Michael , Beckers Stefan K. , Brokmann Jörg C. , Hilgers Ralf-Dieter , Rossaint Rolf ,   the TEMS-study group, Bartman J. , Becker L. , Bozlu L. , Coburn M. , Fazlipour G. , Fitzner C. , Grüßer L. , Gunesch G.-A. , Hess P. , Holten M. , Junge E. , Juppen Dennis , Kaffanke S. , Koch T. , Kranke P. , Liebens J. , Müller M. , Ortmanns Stephan , Reugels Martin , Roschanski Ute , Schroeder Jane , Stadler Pia , Tutlies Carla , Van Waesberghe Julia 
Published: June 2023

Abstract
Background
A tele-emergency medical service with a remote emergency physician for severe prehospital emergencies may overcome the increasing number of emergency calls and shortage of emergency medical service providers. We analysed whether routine use of a tele-emergency medical service is non-inferior to a conventional physician-based one in the occurrence of intervention-related adverse events.

Methods
This open-label, randomised, controlled, parallel-group, non-inferiority trial included all routine severe emergency patients aged ≥ 18 years within the ground-based ambulance service of Aachen, Germany. Patients were randomised in a 1:1 allocation ratio to receive either tele-emergency medical service (n = 1764) or conventional physician-based emergency medical service (n = 1767). The primary outcome was the occurrence of intervention-related adverse events with suspected causality to the group assignment. The trial was registered with ClinicalTrials.gov (NCT02617875) on 30 November 2015 and is reported in accordance with the CONSORT statement for non-inferiority trials.

Results
Among 3531 randomised patients, 3220 were included in the primary analysis (mean age, 61.3 years; 53.8% female); 1676 were randomised to the conventional physician-based emergency medical service (control) group and 1544 to the tele-emergency medical service group. A physician was not deemed necessary in 108 of 1676 cases (6.4%) and 893 of 1544 cases (57.8%) in the control and tele-emergency medical service groups, respectively. The primary endpoint occurred only once in the tele-emergency medical service group. The Newcombe hybrid score method confirmed the non-inferiority of the tele-emergency medical service, as the non-inferiority margin of − 0.015 was not covered by the 97.5% confidence interval of − 0.0046 to 0.0025.

Conclusions
Among severe emergency cases, tele-emergency medical service was non-inferior to conventional physician-based emergency medical service in terms of the occurrence of adverse events.
Contemporary methods for the extraction and isolation of natural products
Authors: Popova Milena , Bankova Vassya 
Published: June 2023

AbstractExtraction is a vital step in obtaining pure bioactive natural compounds for medical, scientific and commercial use. Recently, interest in extracting natural products for applications across the food, pharmaceutical, and cosmetic industries has grown rapidly, driving demand for newer, more efficient extraction methods. To develop our understanding of this field, BMC Chemistry has launched a new article Collection titled “Contemporary methods for the extraction and isolation of natural products”.
Concurrent stunting and overweight or obesity among under-five children in sub-Saharan Africa: a multilevel analysis
Authors: Zemene Melkamu Aderajew , Anley Denekew Tenaw , Gebeyehu Natnael Atnafu , Adella Getachew Asmare , Kassie Gizachew Ambaw , Mengstie Misganaw Asmamaw , Seid Mohammed Abdu , Abebe Endeshaw Chekol , Gesese Molalegn Mesele , Tesfa Natnael Amare , Kebede Yenealem Solomon , Bantie Berihun , Feleke Sefineh Fenta , Dejenie Tadesse Asmamaw , Bayeh Wubet Alebachew , Dessie Anteneh Mengist 
Published: June 2023

Abstract
Background
Globally, the co-occurrence of stunting and overweight or obesity (CSO) in the same individual is becoming an emerging layer of malnutrition and there is a paucity of information in low- and middle-income countries, particularly in sub-Saharan Africa. Hence, this study aimed to determine the pooled prevalence and determinants of concurrent stunting and overweight or obesity among under-five children in SSA.

Methods
Secondary data analysis was conducted from a recent nationally representative Demographic and Health Survey dataset of 35 SSA countries. A total weighted sample of 210,565 under-five children was included in the study. A multivariable multilevel mixed effect model was employed to identify the determinant of the prevalence of under-5 CSO. The Intra-class Correlation Coefficient (ICC) and Likelihood Ratio (LR) test were used to assess the presence of the clustering effect. A p-value of p < 0.05 was used to declare statistical significance.

Result
The pooled prevalence of concurrent stunting and overweight/obesity among under-five children was 1.82% (95% CI: 1.76, 1.87) in SSA. Across the SSA regions, the highest prevalence of CSO was reported in Southern Africa (2.64%, 95% CI: 2.17, 3.17) followed by the Central Africa region (2.21%, 95% CI: 2.06, 2.37). Under five children aged 12–23 months (AOR = 0.45, 95% CI: 0.34, 0.59), 24–35 months (AOR = 0.41, 95% CI: 0.32, 0.52), 36–59 months (AOR = 055, 95% CI: 0.43, 0.70), ever had no vaccination (AOR = 1.25, 95% CI: 1.09, 1.54), under-five children born from 25 to 34 years mother (AOR = 0.75, 95% CI: 0.61, 0.91), under-five children born from overweight/obese mothers (AOR = 1.63, 95% CI: 1.14, 2.34), and under-five children living in West Africa (AOR = 0.77, 95% CI: 0.61, 0.96) were significant determinants for under-five CSO.

Conclusion
Concurrent stunting and overweight or obesity is becoming an emerging layer of malnutrition. Under five children born in the SSA region had almost a 2% overall risk of developing CSO. Age of the children, vaccination status, maternal age, maternal obesity, and region of SSA were significantly associated with under-five CSO. Therefore, nutrition policies and programs should base on the identified factors and promote a quality and nutritious diet to limit the risk of developing CSO in early life.