Table 2.

The cross-sectional association between baseline percentage of sedentary behaviour measured by accelerometer/self-reported screen time and standardised HSCL-10 score at T1 investigated by multiple hierarchic linear regression

	Objectively measured percentage of sedentary behaviour*				Self-reported screen time†
	B	95% CI		P value	B	95% CI		P value
		Lower	Upper			Lower	Upper
Adjusted model Block 1
Predictor variable	0.013	−0.001	0.027	0.068	0.052	0.020	0.085	0.002
Adjusted model Block 2
Predictor variable	0.014	−3.521E-5	0.027	0.051	0.078	0.046	0.110	0.000
Sex	−0.506	−0.654	−0.358	0.000	−0.578	−0.727	−0.429	0.000
Age	0.080	0.004	0.156	0.040	0.081	0.006	0.156	0.034
SES father	0.011	−0.166	0.188	0.902	0.028	−0.145	0.202	0.748
SES mother	−0.008	−0.180	0.163	0.923	0.014	−0.156	0.183	0.872
Season	−0.053	−0.284	0.177	0.648	−0.070	−0.299	0.158	0.546
Adjusted model Block 3
Predictor variable	0.011	−0.004	0.026	0.143	0.048	0.017	0.079	0.002
Sex	−0.472	−0.612	−0.332	0.000	−0.472	−0.612	−0.332	0.000
Age	0.023	−0.048	0.093	0.526	0.023	−0.048	0.093	0.526
SES father	0.016	−0.146	0.179	0.842	0.016	−0.146	0.179	0.842
SES mother	0.027	−0.130	0.183	0.739	0.027	−0.130	0.183	0.739
Season	−0.047	−0.258	0.164	0.664	−0.047	−0.258	0.164	0.664
MVPA	0.005	0.000	0.009	0.043	0.005	0.000	0.009	0.043
BMI	−0.009	−0.027	0.008	0.294	−0.009	−0.027	0.008	0.294
Sleep onset latency	0.427	0.284	0.571	0.000	0.427	0.284	0.571	0.000
Social network	−0.358	−0.503	−0.212	0.000	−0.358	−0.503	−0.212	0.000
Self-reported health	−0.122	−0.211	−0.034	0.007	−0.122	−0.211	−0.034	0.007
Chronic pain	0.423	0.264	0.583	0.000	0.423	0.264	0.583	0.000
Control variable‡	0.048	0.017	0.079	0.002	0.011	−0.004	0.026	0.143

T1 (baseline) variables: age, SES mother/father (socioeconomic status≥higher education), season (winter), sleep onset latency >30 min, social network, self-reported health, chronic pain>3 months.

*Predictor variable, percentage of day spent in sedentary behavior per valid day.

†Predictor variable, screen time—time reported in hours per day.

‡Screen time for when sedentary time is predictor, and sedentary time when screen time is predictor.

BMI, body mass index; HSCL, Hopkins Symptoms Checklist; MVPA, moderate to vigorous physical activity.