BMC Public Health

Table 3 Correlations of screen time with outdoor play in children at eight time point

From: Prevalence, correlates, and trajectory of screen viewing among Chinese children in Changsha: a birth cohort study

	ST12	ST18	ST24	ST36	ST42	ST48	ST54	ST60	PA12	PA18	PA24	PA36	PA42	PA48	PA54	PA60
ST12	1
ST18	0.269^**	1
ST24	0.157^**	0.377^**	1
ST36	0.132^**	0.163^**	0.315^**	1
ST42	0.203^**	0.267^**	0.246^**	0.427^**	1
ST48	0.188^**	0.191^**	0.264^**	0.308^**	0.565^**	1
ST54	0.134^**	0.187^**	0.247^**	0.291^**	0.434^**	0.519^**	1
ST60	−0.055	0.076	0.068	0.087	−0.008	0.018	0.07	1
PA12	0.027	0.019	−0.029	0.002	0.066	0.103*	0.076	0.026	1
PA18	0.067	−0.074	−0.081^**	−0.068	−0.06	−0.049	0.039	−0.001	0.307^**	1
PA24	0.067	0	−0.03	0.019	−0.007	0.015	−0.04	−0.032	0.226^**	0.264^**	1
PA36	0.01	−0.014	−0.008	0.052	−0.05	− 0.071	− 0.003	0.087	0.225^**	0.201^**	0.27^**	1
PA42	0.052	−0.013	0.038	−0.069	0.099^*	0.11*	0.004	−0.01	0.088^*	0.119^**	0.104^*	0.091^*	1
PA48	−0.04	− 0.102^*	− 0.088^*	− 0.127^**	− 0.062	0.026	− 0.05	−0.009	0.057	0.114^**	0.097^*	0.044	0.227^**	1
PA54	−0.116^**	− 0.066	−0.012	− 0.006	−0.016	− 0.047	0.055	0.154^*	0.013	−0.051	−0.055	0.098^*	0.011	0.207^**	1
PA60	0.043	0.124^*	0.002	0.016	0.002	0.063	0.03	0.085	0.02	−0.005	−0.059	0.026	−0.01	− 0.103	0.079	1

Abbreviations: PA Outdoor activity time, ST Screen time
^**P < 0.01
^*P < 0.05

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ISSN: 1471-2458

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