Table 6.
Odds ratios for number of readmissions among schizophrenia patientsa
| Readmissions | |||
|---|---|---|---|
| <4 times | 5–20 times | >20 times | |
| Never used cannabis, n (%) | 138 (53) | 96 (37) | 27 (10) |
| Ever used cannabis, n (%) | 25 (43) | 16 (28) | 17 (29) |
| Crude odds ratio (95% CI) | 1 (ref) | 1.1 (0.6–2.0) | 3.4 (1.6–7.1) |
| Adjusted odds ratio (95% CI)b | 1 (ref) | 0.8 (0.4–1.7) | 3.1 (1.3–7.3) |
CI, Confidence interval; ref, reference.
a
Odds ratios were calculated by using multinomial logistic regression.
b
Adjusted for diagnosis of personality disorders at baseline, family socio-economic position, intelligent quotient score at conscription, civil status during the follow-up, place of residence at conscription, risky use of alcohol at conscription, and use of other drugs at conscription.