Table 3.

Joint Associations of Physical Activity (PAT) and Sitting Time (ST) with the Odds Ratios of Insomnia, Depressive and Anxiety Symptoms

	Insomnia Symptoms	Depressive Symptoms	Anxiety Symptoms
Group Ⅰ	1 (ref)	1 (ref)	1 (ref)
Group Ⅱ	0.56 (0.38–0.83)**	0.55 (0.38–0.80)**	0.73 (0.50–1.10)
Group III	0.72 (0.50–1.03)	0.65 (0.45–0.93)*	1.05 (0.72–1.52)
Group Ⅳ	0.40 (0.27–0.59)***	0.43 (0.30–0.63)***	0.65 (0.43–0.97)*

Notes: Data are presented as OR (95% CI). *p < 0.05, **p < 0.01, ***p < 0.001. Group Ⅰ: low PAT + high ST; Group Ⅱ: low PAT + low ST; GroupIII: high PAT + high ST; Group Ⅳ: high PAT + low ST. Using Group Ⅰ as the referent, the odds ratios of the three symptoms between Group Ⅰ and other groups were compared after adjusting for age, gender, household monthly income per person, left-behind status, COVID-19-related fear.