variables

Khat chewing

OR (95% CI)

P-value

Yes

No

Crude

Adjusted

Sex

Male

123

514

1.86 (1.14, 3.02)*

1.95 (1.10 - 3.47)*

0.023

Female

28

63

1

1

Age category

<20 years

6

58

3.37 (1.05, 10.76)*

2.39 (0.60, 9.51)

0.214

20 - 24 years

137

496

1.26 (0.55, 2.88)

0.82 (0.30, 2.28)

0.713

>24 years

8

23

1

1

Department

NRM u

17

35

0.75 (0.33, 1.69)

0.55 (0.20, 1.53)

0.245

Medicine

11

92

3.04 (1.30, 7.10)*

1.91 (0.69, 5.27)

0.213

Law

25

76

1.15 (0.56, 2.38)

0.75 (0.29, 1.95)

0.548

EENuu

60

244

1.48 (0.78, 2.80)

0.94 (0.43, 2.08)

0.874

BAuuu

22

83

1.37 (0.65, 2.88)

1.15 (0.47, 2.83)

0.768

EEuuuu

16

44

1

1

Year of study

Second year

61

225

0.71 (0.34, 1.48)

0.48 (0.19, 1.20)

0.118

Third year

63

213

0.65 (0.31, 1.35)

0.48 (0.19, 1.22)

0.120

Fourth year

17

87

0.98 (0.42, 2.31)

0.52 (0.17, 1.54)

0.234

Fifth year

10

52

1

1

Marital status

Never married

138

535

1.20 (0.63, 2.30)

0.87 (0.40, 1.91)

0.721

Ever married

13

42

1

1

Religion

Orthodox Christian

89

318

0.72 (0.24, 2.15)

0.81 (0.25, 2.60)

0.722

Protestant Christian

9

105

2.33 (0.66, 8.32)

2.60 (0.68, 9.92)

0.162

Muslim

49

134

0.55 (0.18, 1.68)

0.87 (0.26, 2.86)

0.812

Other

4

20

1

1