The association between baseline sedentary time measured by accelerometer/self-reported screen time and change in mean score HSCL-10 between T1 and T2—complete cases, assessed by hierarchic linearly regression
| Percentage of sedentary behaviour* | Screen time† | |||||
| B | 95% CI | P value | B | 95% CI | P value | |
| Adjusted model Block 1‡ | ||||||
| Predictor variable | 0.005 | −0.009/0.019 | 0.464 | 0.020 | −0.019/0.060 | 0.310 |
| Adjusted model Block 2§ | ||||||
| Predictor variable | 0.005 | −0.008/0.019 | 0.438 | 0.027 | −0.013/0.067 | 0.188 |
| Adjusted model Block 3¶ | ||||||
| Predictor variable | 0.012 | −0.005/0.029 | 0.151 | 0.029 | −0.013/0.070 | 0.173 |
*Percentage of day spent in sedentary behaviour.
†Time reported in hours per day.
‡Block 1: model adjusted by HSCL-10 (T1).
§Block 2: model adjusted by variables in Block 1; demography-related variables: sex, age, socioeconomic status father (>higher education T1), socioeconomic status mother (>higher educationT1), season (Winter T1), MVPA (T1), BMI (T1), sleep onset latency (>30 min T1), social network (T1) and screen time when sedentary time was predictor or sedentary time when screen time was predictor (T1).
¶Block 3: model adjusted by variables in Block 1, Block 2 and health-related variables: self-reported health (T1) and chronic pain (T1).
BMI, body mass index; HSCL, Hopkins Symptoms Checklist; MVPA, moderate to vigorous physical activity; T1, baseline.