Table 5 Adjusted odds ratio of prematurity < 37 weeks by level of service, by jurisdiction (excluding stillbirths)
From: The safety of Canadian rural maternity services: a multi-jurisdictional cohort analysis
Alberta | British Columbia | Nova Scotia | ||||
|---|---|---|---|---|---|---|
Service Level | Adjusted ORa (95 % CI) (n = 66215) | N | Adjusted ORa (95 % CI) (n = 61,991) | N | Adjusted ORa (95 % CI) (n = 18,769) | N |
1 | 1.22 (0.78, 1.91) | 308 | 1.31 (1.00, 1.72) | 601 | ||
2 | 1.32 (1.06, 1.63) | 1286 | 1.04 (0.78, 1.40) | 623 | 0.86 (0.40, 1.87) | 99 |
3 | 1.17 (1.00, 1.36) | 2912 | 1.18 (1.00, 1.39) | 1892 | 1.14 (0.92, 1.40) | 1772 |
4 | 1.07 (0.96, 1.20) | 6691 | 0.80 (0.68, 0.93) | 2976 | ||
5 | 1.08 (1.01, 1.17) | 21194 | 0.87 (0.78, 0.96) | 6814 | 0.95 (0.74, 1.23) | 993 |
6 | 1.23 (1.08, 1.40) | 3852 | 0.95 (0.86, 1.05) | 7206 | ||
7 | 1.26 (0.79, 2.03) | 262 | 0.82 (0.70, 0.96) | 2778 | 1.32 (0.86, 2.03) | 440 |
8 | 1.0 | 29710 | 1.0 | 39101 | 1.0 | 15465 |