Table 4 Variables of three health-specific questionnaires: confounder, use, evaluation, and cancelation of the programs
Variables/constructs | Source/origin/consideration in analyses | Health goal | Number of items | Time measure points | |||
|---|---|---|---|---|---|---|---|
t0 | t1 | t2 | t3 | ||||
Confounder | |||||||
Mental illness | Patient Health Questionnaire (PHQ-2 [62])/mean score One self-developed item/dichotomous | W, F, S | 3 | x | x | x | x |
Health impairments | Comorbidity Score (KoMo) [32]/mean score | W, F, S | 24 | x | |||
General state of health | BRAHMS [50]; adapted | W, F, S | 1 | x | |||
Addictive substances other than tobacco (s) | Alcohol, Smoking and Substance Involvement Screening Test (WHO-ASSIST), question N°2 [63] ; three of ten items: alcohol, cannabis, sedatives and sleeping pills/value of each Item | S | 3 | x | x | x | x |
Social support | The weigh-related interactions Scale (WRIS) [26]; adapted/mean score | W | 14 | x | x | x | x |
Social support [64] (in prep.)/mean score | F | 12 | x | x | x | x | |
Partner Interaction Questionnaire (PIQ-20 [65]); adapted/mean score | S | 17 | x | x | x | x | |
Evaluation of the program* | |||||||
Use and evaluation of the online programs* | Self-developed/mean duration of use in weeks and mean score of evaluation | W, F, S | 19 | x | (x*) | (x*) | |
Recommendation of the online program | Self-developed/percentages of three levels | W, F, S | 1 | x | x | ||
Premature program- and/or study termination** | Self-developed/percentages of different reasons | W, F, S | 5 | (x) | |||
Text box for additional comments | Self-developed/categorizations and subsequent description of percentages | W, F, S | 1 | x | x | x | x |