Table 4.
Predictive validity of class membership for boys and girls separately and together
| Non‐symptomatic | Moderate | Severe | |
|---|---|---|---|
| OR (95% CI) | OR (95% CI) | ||
| Daily cannabis consumption a | |||
| Boys | Reference | 11.07*** (6.80–18.05) | 40.59*** (23.65–69.66) |
| Girls | Reference | 8.76*** (4.22–18.22) | 47.40*** (21.36–105.21) |
| Total | Reference | 10.82*** (7.21–16.23) | 43.32*** (27.67–67.82) |
| B (SE) | B (SE) | ||
| Number of joints per day b | |||
| Boys | Reference | 1.01*** (0.07) | 2.21*** (0.11) |
| Girls | Reference | 0.67*** (0.06) | 1.89*** (0.17) |
| Total | Reference | 0.90*** (0.05) | 2.19*** (0.08) |
| Age of first use b | |||
| Boys | Reference | −0.94*** (0.07) | −1.60*** (0.11) |
| Girls | Reference | −0.58*** (0.07) | −1.19*** (0.14) |
| Total | Reference | −0.80*** (0.05) | −1.47*** (0.09) |
All models were controlled for age, gender (for “Total” only), daily tobacco use, ≥ 10 alcohol uses in the last 30 days.
For boys (resp. girls) the latent classes were computed for boys (resp. girls) separately; for total sample, the latent classes were computed for boys and girls together without considering gender.
OR, odds ratio; CI, confidence interval; B, regression coefficient; SE, standard error.
a
Logistic regression models.
b
Linear regression models.
***p < 0.001.