Impact of problematic mobile phone use and insufficient physical activity on depression symptoms: a college-based follow-up study

Table 3 Interactions of problematic mobile phone use, physical activity and increased depressive symptoms

	Increased depressive symptoms
	N (%)	Crude OR (CI 95%)	Adjusted OR (CI 95%) ^a
PMPU
No	117 (7.7%)	1.00	1.00
Yes	93 (15.3%)	2.17 (1.62,2.90)***	2.05 (1.52,2.75)***
PA
Sufficient	66 (8.8%)	1.00	1.00
Insufficient	144 (10.4%)	1.21 (0.89,1.65)	1.23 (0.90,1.67)
Joint effects of PMPU and IPA
0	39 (6.9%)	1.00	1.00
1	105 (9.2%)	1.37 (0.93,2.00)	1.37 (0.93,2.02)
2	66 (15.6%)	2.51 (1.65,3.81)***	2.36 (1.55,3.60)***

^aAdjusted for age, BMI, sex, residential area, perceived family income, cigarette use, alcohol use
*P < 0.05, **P < 0.01, ***P < 0.001

ISSN: 1471-2458