Table 2 Associations between substance use and gender, age, SES, and time

Gender (female)

OR

1.39

1.59

0.93

0.45

0.35

CI

0.93–2.09

0.99–2.55

0.72–1.21

0.28–0.70

0.20–0.59

p

0.15

0.08

0.70

0.001 **

<  0.001 ***

SES

OR

0.97

0.94

1.05

1.00

1.03

CI

0.92–1.02

0.88–1.00

1.01–1.09

0.94–1.06

0.96–1.11

p

0.31

0.07

0.02 *

0.99

0.46

Age

OR

1.79

1.72

2.51

2.22

2.15

CI

1.59–2.00

1.51–1.95

2.31–2.72

1.90–2.59

1.81–2.55

p

<  0.001 ***

<  0.001 ***

<  0.001 ***

<  0.001 ***

<  0.001 ***

Time (in years)

OR

1.08

1.0

0.97

1.14

1.31

CI

0.99–1.17

0.92–1.1

0.92–1.01

1.02–1.26

1.14–1.5

p

0.08

0.89

0.17

0.01 *

<  0.001 ***