Table 3 Independent socio-demographic predictors of current substance use^a

Sex

Male

3.74

1.87

2.89

0.99

2.69

(2.99–4.71)***

(1.67–2.10)***

(2.32–3.62)***

(0.72–1.36)

(2.05–3.57)***

Female

Ref

Ref

Ref

Ref

Ref

Age

Mean(SD)

1.08

1.08

1.06

1.09

1.1

(1.04–1.13)***

(1.05–1.10)***

(1.01–1.10)**

(1.02–1.17)**

(1.05–1.15)***

Marital status

Married

Ref

Ref

Ref

Ref

Ref

Single

1.33

1.22

1.27

2.06

0.85

(0.87–2.15)

(0.96–1.57)

(0.81–2.09)

(0.99–5.06)

(0.54–1.42)

Others

5.77

2.91

2.62

2.33

2.91

(2.20–14.0)***

(1.39–5.93)**

(0.72–7.62)

(0.12–13.8)

(0.81–8.33)

Religion

Protestant

Ref

Ref

Ref

Ref

Ref

Catholic

1.13

1.25

1.05

1.05

1.24

(0.93–1.37)

(1.12–1.41)***

(0.85–1.29)

(0.75–1.46)

(0.96–1.59)

Muslim

1.02

0.50

1.03

1.29

1.38

(0.64–1.55)

(0.36–0.69)***

(0.64–1.57)

(0.62–2.39)

(0.79–2.26)

Others

0.77

0.78

1.35

0.81

0.89

(0.43–1.27)

(0.57–1.05)

(0.84–2.08)

(0.28–1.82)

(0.42–1.68)

Birth order

1–2

Ref

Ref

Ref

Ref

Ref

3–5

0.84

0.90

0.82

1.06

1.03

(0.68–1.02)

(0.80–1.01)

(0.66–1.01)

(0.76–1.47)

(0.79–1.34)

6 + 

0.67

0.67

0.60

0.82

1.31

(0.45–0.95)*

(0.54–0.83)***

(0.39–0.89)*

(0.44–1.43)

(0.88–1.90)

Level of Education

High School

1.14

0.65

1.01

0.98

1.3

(0.87–1.46)

(0.55–0.78)***

(0.75–1.34)

(0.58–1.57)

(0.93–1.80)

College

0.95

1.10

1.02

1.54

1.26

(0.73–1.23)

(0.95–1.27)

(0.78–1.32)

(1.05–2.22)*

(0.91–1.71)

University

Ref

Ref

Ref

Ref

Ref

Wealth Index

Quintile 1

1.17

0.92

1.62

1.58

1.17

(0.88–1.57)

(0.77–1.09)

(1.17–2.26)**

(0.96–2.62)

(0.80–1.70)

Quintile 2

1.79

1.81

3.12

1.54

1.40

(1.36–2.36)***

(1.54–2.12)***

(2.32–4.26)***

(0.94–2.56)

(0.97–2.04)

Quintile 3

1.03

0.90

1.51

1.51

0.87

(0.76–1.39)

(0.75–1.07)

(1.08–2.12)*

(0.92–2.52)

(0.58–1.30)

Quintile 4

0.69

0.61

0.65

0.75

1.00

(0.49–0.95)*

(0.51–0.74)***

(0.43–0.97)*

(0.41–1.35)

(0.68–1.47)

Quintile 5

Ref

Ref

Ref

Ref

Ref