Table 1.
Overview of the included sedentary behaviour contexts (behaviour-specific questions)
| Adolescents | Adults | Older adults | |
|---|---|---|---|
| TV (WK, WKND)(a) | V | V | V |
| Computer (WK, WKND)(a) | V | V | V |
| Sitting while reading (WK, WKND)(a) | V | V | V |
| Sitting for hobbies (WK, WKND)(a) | V | V | V |
| Sitting for socializing (WK, WKND)(a) | V | V | V |
| Sitting while listening to music (WK, WKND)(a) | V | V | V |
| Sitting during meals (WK, WKND)(a) | V | V | V |
| Motorized transport (to and from school, WK, WKND)(b) | V | - | - |
| Motorized transport (to and from occupation, during occupation, WK, WKND)(b) | - | V | - |
| Motorized transport (WK, WKND)(b) | - | - | V |
| Sitting during school work at home (WK, WKND)(a) | V | - | - |
| Sitting while caring ((grand)children, family members,…) (WK, WKND)(a) | - | V | V |
| Sitting for using mobile phone (WK, WKND)(a) | V | - | - |
| Household tasks and making phone calls (WK, WKND)(a) | - | V | - |
| Making phone calls (WK, WKND)(a) | - | - | V |
| School (WK)(a) | V | - | - |
| Occupation(c) | - | V | - |
| Household tasks (WK, WKND)(a) | - | - | V |
| Gaming (WK, WKND)(a) | V | - | - |
| Afternoon nap (WK, WKND)(a) | - | - | V |
WK weekdays, WKND weekend days, V present in the age-specific questionnaire, − not present in the age-specific questionnaire
Answer categories:
(a)‘None’, ‘1-15 min/day’, ‘15-30 min/day’, ‘30-60 min/day’, ‘1-2 h/day’, ‘2-3 h/day’, ‘3-4 h/day’, ‘4-5 h/day’, ‘5-6 h/day’, ‘6-7 h/day’ or ‘more than 7 h/day’
(b)‘None’, ‘1-15 min/day’, ‘15-30 min/day’, ‘30-45 min/day’, ‘45-60 min/day’, ‘60-90 min/day’, ‘90-120 min/day’, ‘2-2.5 h/day’, ‘2.5-3 h/day’, ‘3-4 h/day’, ‘4-5 h/day’, ‘5-6 h/day’, ‘6-7 h/day’ or ‘more than 7 h/day’
(c)‘Less than 2 h/day’, ‘2-3 h/day’, ‘3-4 h/day’, ‘4-5 h/day’, ‘5-6 h/day’, ‘6-7 h/day’, ‘7-8 h/day’, ‘more than 8 h/day’