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Table 1 Characteristics of Chinese college students by sex a

From: Association of physical activity, sedentary time, and sleep duration on the health-related quality of life of college students in Northeast China

  Total (n = 926) Male (n = 308) Female (n = 618) P value
Mean (SD)
 Age, years 19.78 (1.14) 19.95 (1.22) 19.69 (1.09) 0.001*
 BMIb, kg/m2 21.04 (2.90) 22.14 (3.19) 20.49 (2.58) < 0.001*
 STc, h 7.51 (2.66) 7.26 (2.79) 7.63 (2.59) 0.045*
 Sleep duration, h 8.23 (0.84) 8.20 (0.93) 8.24 (0.79) 0.411
 PCSd 50.00 (8.10) 50.58 (8.17) 49.71 (8.06) 0.123
 MCSe 50.00 (9.53) 50.45 (10.30) 49.78 (9.13) 0.316
N (%)
 Grade   0.373
 First 166 (17.9) 58 (18.8) 108 (17.5)  
 Second 463 (50.0) 144 (46.8) 319 (51.6)  
 Third 297 (32.1) 106 (34.4) 191 (30.9)  
Specialty   0.742
 Clinical 620 (67.0) 204 (66.2) 416 (67.3)  
 Non-clinical 306 (33.0) 104 (33.8) 202 (32.7)  
Home location   0.619
 Urban 531 (57.3) 174 (56.4) 357 (57.8)  
 Town 210 (22.7) 67 (21.8) 143 (23.1)  
 Rural 185 (20.0) 67 (21.8) 118 (19.1)  
Monthly living expenses, yuan/month 0.467
 ≤1,000 264 (28.5) 93 (30.2) 171 (27.7)  
 1,001–1,500 458 (49.5) 154 (50.0) 304 (49.2)  
 > 1,500 204 (22.0) 61 (19.8) 143 (23.1)  
PA f   0.010*
 Low 120 (13.0) 36 (11.7) 84 (13.6)  
 Moderate 369 (39.8) 105 (34.1) 264 (42.7)  
 High 437 (47.2) 167 (54.2) 270 (43.7)  
  1. aValues are presented as mean (SD) or N (%) when appropriate. bBMI: body mass index. cST: sedentary time. DPCS: physical component summary. eMCS: mental component summary. f PA: physical activity
  2. *P < 0.05