Skip to main content

Table 3 Subgroup analysis of the prevalence of khat use among university students based on random effect analysis

From: Epidemiology of khat (Catha edulis) consumption among university students: a meta-analysis

Subgroup

Number of studies

Type of use

Estimates

Heterogeneity

Prevalence (%)

95% Confidence interval

I2 (%)

Q(df)

P value

Sex

 Men

12

Current

19.26

14.05–25.82

98.01

553.56(11)

P < 0001

 Women

12

Current

6.41

4.12–9.82

91.96

136.78(11)

P < 0001

 Men

10

Lifetime

31.47

25.73–37.84

96.95

294.79(9)

P < 0001

 Women

10

Lifetime

11.79

7.53–18.01

95.23

188.52(9)

P < 0001

Country

 Ethiopia

15

Current

13.59

11.02–16.62

98.88

1243.10(14)

P < 0001

 Saudi Arabia

2

Current

18.85

12.31–27.75

98.24

56.82(1)

P < 0001

 Yemen

1

Current

13.04

10.26–16.44

–

–

–

 Ethiopia

17

Lifetime

24.82

21.30–28.72

96.43

447.74(16)

P < 0001

 Saudi Arabia

2

Lifetime

37.32

15.74–65.48

99.30

141.20(1)

P < 0001

 Yemen

2

Lifetime

43.27

25.31–63.19

92.37

13.04(1)

P < 0001