Table 2 Variables of three health goal-specific questionnaires: sociodemographic and baseline variables
Variables/constructs | Source/origin/analyses | Health goal /RCT | Number of items | Time measure points | |||
|---|---|---|---|---|---|---|---|
t0 | t1 | t2 | t3 | ||||
Sociodemography | |||||||
Age | Self-developed/means in years | W, F, S | 1 | x | x | x | x |
Gender | Self-developed/percentages | W, F, S | 1 | x | x | x | x |
Postal code (2 digits) | Self-developed /percentages | W, F, S | 1 | x | x | x | x |
Characteristic of residence (big city to rural) | Self-developed/percentages | W, F, S | 1 | x | x | x | x |
Native language | Migration status; adapted [47]/percentages | W, F, S | 2 | x | |||
Nationality | Self-developed/percentages | W, F, S | 1 | x | |||
Marital status | Indicators of rehabilitation status (IRES) [48]/percentages | W, F, S | 1 | x | |||
Persons in the household | IRES [48]/means | W, F, S | 2 | x | |||
Highest school degree | IRES [48]/percentages | W, F, S | 1 | x | |||
Highest professional qualification | Questionnaire for Health-Related Resource Use in an Elderly Population FIMA [49]/percentages | W, F, S | 1 | x | |||
Employment | Indicators of rehabilitation status (IRES); adaped [48]/percentages | W, F, S | 2 | x | x | x | x |
Net income | IRES; adaped [48]/percentages of categories | W, F, S | 1 | x | |||
Working hours | IRE S[48] and one self-developed item/means | W, F, S | 2 | x | x | x | x |
Basic variables | |||||||
Membership in health insurance | Self-developed/percentages | W, F, S | 1 | x | |||
Knowledge of the study | Self-developed/percentages | W, F, S | 1 | x | |||
Experience with online health programs | Self-developed/means and percentages | W, F, S | 1 | x | |||
Current use of (other) online health programs | Self-developed/percentages | W,F,S | 6 | x | x (6) | x(6) | x (6) |
Further internet use in general and regarding health subjects | Self-developed/percentages | W, F, S | 10 | x | x (1) | x (1) | x(1) |
Previous attempt at behavior change | “Berlin Risk Appraisal and Health Motivation Study” (BRAHMS [50]); adapted to specific health goal/means | W, F, S | 2 4 | x | |||
Actual health behavior | Self-developed/percentages | W, F, S | 1 | x | x | x | x |
Height | IRES [48] (Use for calculation of Body mass index) | W, F, S | 1 | x | |||
Smoking | Self-developed/percentages | W, F | 1 | x | |||