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Table 4 Logistic regression with daily cannabis use among active cannabis users (N = 1728)

From: Prevalence and correlates of non-daily and daily cannabis use among persons 15 years and older in South Africa: results of a national survey in 2017

Variable Crude OR (95% CI) P-value Adjusted OR (95% CI) P-value
Sex
 Female (23.4%) 1 (Reference)   1 (Reference)  
 Male (76.6%) 5.29 (3.40, 8.25) < 0.001 3.88 (2.40, 6.28) < 0.001
Age in years
 45 or more (18.3%) 1 (Reference)   
 30–44 (35.1%) 1.22 (0.80, 1.86) 0.351   
 15–29 (46.7%) 1.00 (0.68, 1.47) 0.999   
Education
 Grade 0–7 (30.9%) 1 (Reference)   1 (Reference)  
 Grade 8–11 (34.6%) 2.07 (1.46, 2.94) < 0.001 1.25 (0.82, 1.99) 0.298
 Grade 12 or more (34.5%) 1.24 (0.86, 1.79) 0.248 0.90 (0.57, 1.44) 0.670
Marital status
 Married (16.3%) 1 (Reference)   
 Separated/divorced/widowed (4.4%) 1.12 (0.50, 2.47) 0.788   
 Never married (79.3%) 1.44 (0.92, 2.25) 0.107   
Population group
 African Black (78.9%) 1 (Reference)   1 (Reference)  
 White (7.2%) 0.52 (0.27, 1.00) 0.049 0.65 (0.32, 1.32) 0.236
 Coloured (11.6%) 1.21 (0.83, 1.76) 0.310 1.12 (0.71, 1.78) 0.618
 Indian or Asian (2.3%) 0.43 (0.24, 0.75) 0.003 0.54 (0.30, 0.99) 0.046
Employement status
 Employed/self-employed (37.2%) 1 (Reference)   1 (Reference)  
 Unemployed (50.3%) 0.77 (0.55, 1.09) 0.137 0.85 (0.57, 1.26) 0.421
 Not in the labour force (12.5%) 0.31 (0.18, 0.55) < 0.001 0.33 (0.16, 0.66) 0.002
Residence
 Rural informal (tribal areas) (22.0%) 1 (Reference)   1 (Reference)  
 Rural (farms) (5.0%) 1.25 (0.77, 2.04) 0.372 0.96 (0.55, 1.69) 0.892
 Urban (73.1%) 1.63 (1.12, 2.38) 0.012 1.54 (0.98, 2.45) 0.068
Alcohol use disorder
 No (71.3%) 1 (Reference)   1 (Reference)  
 Yes (28.7%) 1.74 (1.24, 2.43) < 0.001 1.26 (0.85, 1.85) 0.240
Other drugs
 No (74.9%) 1 (Reference)   1 (Reference)  
 Yes (25.1%) 0.30 (0.19, 0.47) < 0.001 0.42 (0.26, 0.66) < 0.001
Psychological distress
 No (77.4%) 1 (Reference)   
 Yes (22.6%) 1.10 (0.73, 1.65) 0.646   
Physical multimorbidity
 0 (86.1%) 1 (Reference)   
 1 (12.4%) 0.76 (0.47, 1.24) 0.276   
 2 or more (1.5%) 0.32 (0.10, 1.06) 0.062   
Health care utilization
 No (62.5%) 1 (Reference)   1 (Reference)  
 Yes (37.5%) 0.72 (0.51, 1.00) 0.048 0.82 (0.58, 1.17) 0.276
  1. OR Odds Ratio, CI Confidence Interval