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Table 1 Demographics and general characteristics of the different groups

From: The relationship between sleep and wake habits and academic performance in medical students: a cross-sectional study

Variables

Total

(n = 410)

“Excellent”

115 (28%)

“Average”

295 (72%)

P value

Sex (Male)

273 (67)

73 (63)

200 (68)

0.405

BMI

25.01 ± 8.56

24.46 ± 11.05

25.24 ± 7.33

0.423

Obese (BMI > 30)

57 (13.9)

9 (7.8)

48 (16.3)

0.026

Smoke (Yes)

24 (5.9)

1 (0.9)

23 (7.9)

0.007

Internet Usage >2 hr

197 (48)

43 (37)

153 (52)

0.028

Job (volunteer or employee) during school days

74 (18.0)

23 (20.2)

51 (17.3)

0.506

  1. BMI: Body mass index.