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Table 4 PCS and MCS scores of Chinese college students according to different groups of sleep duration a

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

Sleep duration N PCS b P value MCS c P value
Total 0.732   0.006*
 < 7 h/day 58 49.16 (7.65)   48.30 (10.42)  
 7–< 8 h/day 274 50.35 (7.71)   48.96 (9.29)  
 8–< 9 h/day 463 49.86 (8.13)   50.21 (9.33)  
 ≥9 h/day 131 50.12 (9.01)   52.20 (9.99)  
Male 0.531   0.004*
 < 7 h/day 27 49.95 (7.92)   49.21 (10.15)  
 7–< 8 h/day 87 51.68 (8.26)   47.71 (10.20)  
 8–< 9 h/day 146 50.16 (8.10)   51.08 (9.73)  
 ≥9 h/day 48 50.22 (8.43)   54.16 (11.09)  
Female 0.828   0.296
 < 7 h/day 31 48.48 (7.47)   47.50 (10.75)  
 7–< 8 h/day 187 49.73 (7.39)   49.54 (8.80)  
 8–< 9 h/day 317 49.73 (8.16)   49.80 (9.13)  
 ≥9 h/day 83 50.07 (9.37)   51.06 (9.17)  
  1. a Values are presented as mean (SD). b PCS: physical component summary. c MCS: mental component summary. *P < 0.05