Joint physical-activity/screen-time trajectories during early childhood: socio-demographic predictors and consequences on health-related quality-of-life and socio-emotional outcomes

Table 2 Predictors of membership in different physical-activity/screen-time trajectory groups from multinomial logistic regression models

	B-cohort (0–5 years) (reference: Increasing activity-low screen)						K-cohort (4–9 years) (reference: Increasing activity-low screen)
	Low activity- low screen			Low activity- increasing screen			Low activity- low screen			Low activity- increasing screen
	OR	95% CI	p	OR	95% CI	p	OR	95% CI	p	OR	95% CI	p
Female, yes	1.701	1.418–2.039	<.001	0.949	0.770–1.170	.624	2.027	1.678–2.448	<.001	0.913	0.736–1.134	.411
Indigenous, yes	1.042	0.514–2.110	.909	1.863	0.923–3.759	.082	0.862	0.386–1.926	.718	1.441	0.650,3.196	.368
SEIFA (0–14)	1.268	1.126–1.428	<.001	1.005	0.875–1.155	.939	1.058	0.936–1.196	.369	0.871	0.756–1.004	.057
Low birth weight, yes	1.327	0.856–2.057	.206	1.033	0.617–1.730	.902	0.814	0.552–1.200	.298	0.775	0.496–1.209	.261
Main caregiver mental health (0–5)	0.792	0.663–0.946	.010	0.865	0.706–1.061	.165	0.868	0.727–1.035	.114	0.763	0.630–0.923	.005
English as first language, yes	0.786	0.533–1.160	.226	0.603	0.396–0.918	.018	0.501	0.341–0.734	<.001	0.692	0.445–1.077	.103
Siblings, yes	0.647	0.521–0.804	<.001	0.775	0.606–0.992	.043	0.743	0.612–0.902	.003	0.804	0.646–1.001	.051
Two biological parents, yes	0.557	0.364–0.853	.007	0.727	0.450–1.173	.191	0.663	0.469–0.937	.020	0.799	0.545–1.173	.252
Weekly parental income (in AU$1,000)	1.143	1.039–1.257	.006	0.962	0.856–1.080	.511	1.029	0.939–1.128	.536	0.984	0.883–1.096	.773
Cases	2797							2551
Pseudo R²	0.30							0.36

LSAC data, waves 1–3. OR Odd ratios. 95% CI 95% Confidence interval, SEIFA Socio-Economic Index for Areas

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