Table 4.
Predictors of a Mental Health Problem Diagnosis for Siblings of DD Children Born 1990–1995, Odds Ratios (CI).
| Variable | Younger Sisters | Older Sisters | Younger Brothers | Older Brothers |
|---|---|---|---|---|
| Cohort (siblings of children with a DD vs siblings of children without a DD) | 2.20 (2.00–2.42) | 1.79 (1.65–1.94) | 2.35 (2.14–2.58) | 1.77 (1.63–1.93) |
| Age at birth of or nearness of age to the child with the DD | 1.11 (1.10–1.11) | 1.08 (1.07–1.08) | 1.07 (1.06–1.07) | 1.03 (1.02–1.04) |
| Number of children in the family | 0.90 (0.86–0.95) | 0.86 (0.83–090) | 0.89 (0.85–0.93) | 0.87 (0.83–0.91) |
| Income quintile | ||||
| Lowest vs highest | 1.11 (1.05–1.17) | 1.08 (1.03–1.13) | 1.11 (1.06–1.17) | N.S. |
| 2nd vs highest | 1.06 (0.99–1.12) | 1.08 (1.03–1.13) | 1.08 (1.02–1.13) | N.S. |
| 3rd vs highest | 1.11 (1.05–1.17 | 1.02 (0.98–1.07) | 1.03 (0.98–1.09) | N.S. |
| 4th vs highest | 1.07 (1.01–1.13) | 1.04 (0.99–1.09) | 1.04 (0.99–1.09) | N.S. |
| Receipt of an MSP subsidy | 1.13 (1.09–1.17) | 1.04 (1.01–1,07) | 1.13 (1.09–1.17) | 1.20 (1.16–1.23) |
| Health authority | ||||
| Interior vs Vancouver Coastal | 1.17 (1.10–1.23) | 1.24 (1.19–1.30) | 1.18 (1.12–1.24) | 1.20 (1.15–1.26) |
| Fraser vs Vancouver Coastal | 1.17 (1.11–1.22) | 1.30 (1.25–1.35) | 1.10 (1.06–1.15) | 1.28 (1.23–1.33) |
| Island vs Vancouver Coastal | 1.36 (1.28–1.44) | 1.50 (1.43–1.57) | 1.22 (1.16–1.29) | 1.28 (1.22–1.34) |
| Northern vs Vancouver Coastal | 0.77 (0.71–0.83) | 0.943 (0.89–0.99) | 0.87 (0.82–0.93) | 0.93 (0.89–0.99) |