Intervention

(n = 52)

Control

(n = 49)

Significance of group difference

Males

(%)

17

(37.8)

28

(62.6)

χ2 = 6.15; p = 01

Age

19.03

(1.28)

18.97

(1.92)

t = 0.18; p = 0.85

PSQI

7.11

(2.66)

6.89

(3.44)

t = 0.35; p = 0.72

K6

13.57

(4.88)

12.81

(6.23)

t = 0.68; p = 0.49