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Table 3 Odds ratios (OR) and their 95% confidence intervals (CI) of risky sexual behaviours by substance use behaviours among adolescents in bivariate and multivariate analyses

From: Substance use and risky sexual behaviours among sexually experienced Ghanaian youth

Health behaviour

Ever had sexual intercourse

Condom use

Number of sexual partners*

Ever had sexual intercourse

Condom use

Number of sexual partners*

 

Model 1

Model 1

Model 1

Model 2**

Model 2**

Model 2**

 

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

   

One

Multiple

  

One

Multiple

Smoking

        

No

1.0

1.0

1.0

1.0

1.0

 

1.0

1.0

Yes

4.1 (2.3-7.2)

1.4 (0.7-2.6)

9.5 (4.6-19.3)

17.7 (8.4-37.3)

3.7 (2.0-6.8)

 

8.4 (3.7-18.8)

16.5 (7.0-39.0)

Tawa use

        

No

1.0

1.0

1.0

1.0

1.0

 

1.0

1.0

Yes

3.7 (2.1-6.7)

1.3 (0.7-2.5)

9.8 (4.7-20.8)

16.6 (7.6-36.3)

2.4 (1.3-4.7)

 

5.7 (2.5-12.8)

10.4 (4.4-24.6)

Tabocco use

        

No

1.0

1.0

1.0

1.0

1.0

 

1.0

1.0

Yes

3.5 (2.2-5.5)

1.3 (0.8-2.3)

8.3 (4.7-14.8)

16.4 (9.0-29.8)

2.8 (1.7-4.7)

 

6.3 (3.3-11.9)

13.7 (6.9-26.9)

Drunkenness

        

Less often or never

1.0

1.0

1.0

1.0

1.0

 

1.0

1.0

Often (once or weak or more often)

2.1 (1.4-3.3)

1.4 (0.8-2.4)

2.1 (1.3-3.3)

4.4 (2.6-7.3)

1.7 (1.1-2.8)

 

1.7 (1.1-2.8)

3.3 (1.9-5.8)

Marijuana use

        

No

1.0

1.0

1.0

1.0

1.0

 

1.0

1.0

Yes

4.8 (2.4-9.7)

1.2 (0.6-2.6)

6.5 (2.6-16.2)

24.4 (10.4-57.2)

3.3 (1.6-7.0)

 

4.5 (1.7-11.6)

17.1 (6.7-43.3)

Other drug use

        

No

1.0

1.0

1.0

1.0

1.0

 

1.0

1.0

Yes

2.2 (1.1-4.6)

1.9 (0.8-4.1)

6.0 (2.4-15.1)

20.5 (8.6-48.7)

1.2 (0.6-2.8)

 

3.0 (1.1-8.2)

9.1 (3.5-24.0)

  1. *Multinomial logistic regression analysis, reference group is none (no sexual partner).
  2. **Adjusted for age, gender, place of residence, material affluence scale, family structure, school performance and plans after graduation.
  3. Statistical significance level was set at p < 0.05.