Table A2.

Spearman correlation matrix (recreation screen time as dummy variables).

	_Iscreen_2	_Iscreen_3	_Iscreen_4	_Iscreen_5	Urban	Group	Anxiety	Preanxiety	Midanxiety	Age	Female
_Iscreen_2	1
_Iscreen_3	−0.1879 *	1
_Iscreen_4	−0.2208 *	−0.2703 *	1
_Iscreen_5	−0.3340 *	−0.4089 *	−0.4804 *	1
urban	0.0456	0.0085	0.0668	−0.0751	1
group	−0.0503	0.0369	−0.0626	0.0656	0.0561	1
anxiety	0.0359	−0.0286	0.0761	−0.0284	−0.0311	−0.0137	1
preanxiety	−0.0029	−0.0132	0.0683	−0.0112	−0.0273	−0.038	0.6764 *	1
midanxiety	0.0422	−0.0085	0.0657	−0.0452	0.0747	0.0369	0.5908 *	0.7126 *	1
age	0.1157	0.086	−0.1694 *	0.0096	0.0065	0.3184 *	0.0033	0.028	0.0391	1
female	−0.0783	0.0363	0.1459 *	−0.0681	−0.0422	−0.0401	0.0814	0.0338	−0.007	−0.2898	1

Note: (1) _Iscreen_2, _Iscreen3, _Iscreen4, _Iscreen5 represent recreation screen time of “less than 2 h”, “2–3 h”, “3 to 5 h” and “more than 5 h”, respectively. _Iscreen_1 was used as the reference group. (2) * p < 0.05.