Linear regression β coefficents and 95% CIs describing the associations* between sedentary time and BMI SDs
| N | Model 1† | Model 2‡ | Model 3§ | |
|---|---|---|---|---|
| Objectively measured sedentary time (h/day) (CPM<100) | ||||
| 705 | 0.02 (−0.08 to 0.12) | 0.02 (−0.09 to 0.12) | −0.02 (−0.04 to 0.00) | |
| p Value | 0.696 | 0.749 | 0.056 | |
| Objectively measured sedentary time (h/day) (CPM<200) | ||||
| 705 | 0.01 (−0.08 to 0.11) | 0.01 (−0.09 to 0.11) | −0.09 (−0.20 to 0.01) | |
| p Value | 0.818 | 0.877 | 0.087 | |
| TV time (h/day) | ||||
| 4465 | 0.12 (0.07 to 0.18) | 0.12 (0.07 to 0.18) | 0.13 (0.07 to 0.18) | |
| p Value | <0.001 | <0.001 | <0.001 | |
| Non-TV leisure time sitting (h/day) | ||||
| 4465 | −0.01 (−0.07 to 0.05) | −0.01 (−0.06 to 0.05) | 0.00 (−0.06 to 0.05) | |
| p Value | 0.782 | 0.814 | 0.885 | |
| Total sitting (h/day) | ||||
| 4465 | 0.05 (0.02 to 0.09) | 0.05 (0.02 to 0.09) | 0.06 (0.02 to 0.09) | |
| p Value | 0.005 | 0.006 | 0.004 | |
*Coefficients represent the change in BMI SD score for an extra 1 h spent in sedentary time per day.
†Model 1 is adjusted for age, sex and accelerometer wear time (for models with accelerometry main exposure).
‡Model 2 is additionally adjusted for head of household occupational social class and portions of fruit and vegetable per day.
§Model 3 is additionally adjusted for self-reported MVPA or objectively measured MVPA, as appropriate.
BMI, body mass index; CPM, counts per minute; MVPA, moderate to vigorous physical activity.