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Table 2 The joint effects of problematic mobile phone use, physical activity (wave 1) and depression symptoms (wave 1 and 2)

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

 Depression symptoms
Wave 1Wave 2
PMPUN (%)Crude OR (CI 95%)Adjusted OR (CI 95%) aN (%)Crude OR (CI95%)Adjusted OR (CI95%) a
 No144 (9.4%)1.001.00139 (9.1%)1.001.00
 Yes227 (37.3%)5.70 (4.49,7.23)***5.76 (4.52,7. 36)***153 (25.1%)3.35 (2.60,4.31)***3.20 (2.47,4.15)***
PAN (%)Crude OR (CI 95%)Adjusted OR (CI 95%)N (%)Crude OR (CI95%)Adjusted OR (CI95%)
 Sufficient109 (14.5%)1.001.0092 (12.2%)1.001.00
 Insufficient262 (19%)1.39 (1.09,1.77)**1.40 (1.09,1.79)**200 (14.5%)1.22 (0.94,1.59)1.24 (0.95,1.62)
Joint effects of PMPU and IPA
 043 (7.6%)1.001.0044 (7.8%)1.001.00
 1167 (14.6%)2.08 (1.46,2.96)***1.99 (1.40,2.84)***143 (12.5%)1.70 (1.19,2.42)**1.70 (1.19,2.44)**
 2161 (38.2%)7.52 (5.20,10.86)***7.36 (5. 09,10.66)***105 (24.9%)3.94 (2.70,5.75)***3.74 (2.56,5.48)***
  1. aAdjusted for age, BMI, sex, residential area, perceived family income, cigarette use, alcohol use
  2. *P < 0.05, **P < 0.01, ***P < 0.001