Additional file 1 of Dimensionality and invariance of ADL, IADL, BI-M2/WG-SS, and GALI in large surveys in France (2008–2014) and implications for measuring disability in epidemiology
Creators: name: Coste, Joël
name: Pérès, Karine
name: Robine, Jean-Marie
name: Carcaillon-Bentata, Laure
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Plant Biology

description: Additional file 1: Supplementary Table 1. Description of the studied samples (HSM and ESPS surveys). Supplementary Table 2. Spearman’s correlation coefficient matrix between individual items of BI-M2, ADL, IADL, and GALI. ESPS surveys, 2012 and 2014. Supplementary Table 3. Factor pattern matrices obtained using principal component analysis with varimax and promax rotations for the 19 items of the WG-SS, ADL, IADL, and GALI disability indicators. HSM survey. Supplementary Table 4. Rasch analyses of dimensionality and differential item functioning for the BI-M2, ADL, and IADL items (recoded as binary variables, limited vs non-limited). ESPS 2012 survey. Supplementary Table 5. Rasch analyses of dimensionality and differential item functioning for the BI-M2, ADL and IADL items (recoded as binary variables, limited vs non-limited). ESPS 2014 Survey. Supplementary Fig. 1. Subject-item maps of the WG-SS, ADL, and IADL items (four-category responses or three thresholds, 1: some difficulty, 2: much difficulty, 3: unable to do alone; two-category responses and one threshold: “some difficulty or more”). HSM survey. On the left of the diagram are the subjects, and on the right are the thresholds of each item (point on the continuum where the response category “some difficulty or more” is most likely to be chosen by a subject with the corresponding level of disability). Less disabled subjects are near the bottom of the diagram, and most disabled subjects are near the top. Abbreviations SE: Seeing, HE: Hearing, WD: Washing and dressing, WC: Walking or climbing steps, RC: Remembering or concentrating, CO: Communicating. FE: Feeding, TO: Toileting, DR: Dressing, BA: Bathing, TR: Transferring from bed or chair, WA: Walking. SH: Shopping, PM: Preparing meals, LH: Doing light housework, HH: Doing heavy housework, HF: Handling finances, UT: Using telephone. Supplementary Fig. 2. Subject-item maps of the WG-SS, ADL, and IADL items (three-category responses or two thresholds, 1: some difficulty, 2: much difficulty or unable to do alone). HSM survey. On the left of the diagram are the subjects, and on the right are the thresholds of each item (point on the continuum where the response category “some difficulty or more” is most likely to be chosen by a subject with the corresponding level of disability). Less disabled subjects are near the bottom of the diagram, and most disabled subjects are near the top. Abbreviations SE: Seeing, HE: Hearing, WD: Washing and dressing, WC: Walking or climbing steps, RC: Remembering or concentrating, CO: Communicating. FE: Feeding, TO: Toileting, DR: Dressing, BA: Bathing, TR: Transferring from bed or chair, WA: Walking. SH: Shopping, PM: Preparing meals, LH: Doing light housework, HH: Doing heavy housework, HF: Handling finances, UT: Using telephone. Supplementary Fig. 3. Subject-item maps of the ADL, IADL, WG-SS, and GALI items (three-category responses or two thresholds for WG-SS and GALI: 1: some difficulty, 2: much difficulty or unable to do alone; five-category responses or four thresholds for ADL and IADL according to Stineman et al. [37]). HSM survey. On the left of the diagram are the subjects, and on the right are the thresholds of each item (point on the continuum where the response category “some difficulty or more” is most likely to be chosen by a subject with the corresponding level of disability). Less disabled subjects are near the bottom of the diagram, and most disabled subjects are near the top. Abbreviations AD: ADL, IA: IADL, GA: GALI; WG: WGSS.