Variable

Category

Sleeping Time

Total

After 1:00 am

Before 1:00 am

Sex

Males

107

67

174

Females

68

24

92

Total

175

91

266

Age

<24 years

44

23

67

25 - 34

49

26

65

35 - 44

60

28

88

45+

22

14

36

Occupation

Students

30

18

48

Employees

84

32

116

Non-working

9

9

18

Others

52

36

88

Education

Basic

9

2

11

Secondary

26

14

40

University

140

73

213