Results of an observational cohort study that assessed the effect of changes in maternal marital status on use of cannabis in children (11)
| Variable | Changes in maternal marital status | ||
|---|---|---|---|
| Nil n = 2306 | 1–2 n = 584 | ≥ 3 n = 118 | |
| Cannabis use ever, no. (%) | 1035 (44.9) | 346 (59.2) | 80 (67.8) |
| Crude risk ratio (95% CI) | 1.0 (reference) | 1.3 (1.2–1.4) | 1.5 (1.3–1.7) |
| Crude odds ratio (95% CI) | 1.0 (reference) | 1.8 (1.5–2.1) | 2.6 (1.7–3.8) |
| Adjusted risk ratio* (95% CI) | 1.0 (reference) | 1.3 (1.2–1.4) | 1.5 (1.2–1.6) |
| Adjusted odds ratio* (95% CI) | 1.0 (reference) | 1.7 (1.4–2.0) | 2.3 (1.5–3.4) |
CI = confidence interval.
↵* Adjusted for sex of the child, mother’s age, family income, maternal and child mental health at five years, maternal substance use at five years, and frequency of change in marital status between the 5- and 14-year follow-up.