Neonatal outcomes among First Nations women and other women in Ontario with gestational diabetes mellitus, 2002/03 to 2014/15
| Outcome | Other women | First Nations women | ||||
|---|---|---|---|---|---|---|
| 2002/03–2005/06 | 2006/07–2009/10 | 2010/11–2014/15 | 2002/03–2005/06 | 2006/07–2009/10 | 2010/11–2014/15 | |
| Preterm delivery | ||||||
| Rate per 100 births (95% CI) | 12.1 (11.5–12.6) | 12.1 (11.6–12.5) | 11.8 (11.4–12.3) | 11.9 (9.0–15.5) | 11.8 (8.9–15.3) | 14.4 (11.8–17.3) |
| IRR (95% CI) | 0.99 (0.76–1.29) | 0.98 (0.75–1.27) | 1.21 (1.00–1.47) | |||
| p for trend 2002/03–2014/15 | 0.6 | 0.1 | ||||
| Large for gestational age | ||||||
| Rate per 100 births (95% CI) | 16.3 (15.6–17.0) | 15.0 (14.4–15.6) | 14.0 (13.5–14.5) | 49.4 (43.2–56.3) | 50.1 (43.9–56.9) | 45.9 (41.2–51.1) |
| IRR (95% CI) | 3.03 (2.65–3.48) | 3.34 (2.92–3.82) | 3.27 (2.93–3.66) | |||
| p for trend 2002/03–2014/15 | < 0.001 | 0.1 | ||||
| Congenital anomaly | ||||||
| Rate per 100 births (95% CI) | 5.7 (5.3–6.1) | 5.3 (5.0–5.6) | 6.0 (5.7–6.3) | 8.0 (5.7–11.0) | 5.4 (3.5–8.0) | 8.0 (6.2–10.3) |
| IRR (95% CI) | 1.40 (1.02–1.93) | 1.03 (0.70–1.53) | 1.34 (1.04–1.72) | |||
| p for trend 2002/03–2014/15 | < 0.001 | 0.8 | ||||
| Stillbirth | ||||||
| Rate per 100 births (95% CI) | 0.5 (0.4–0.6) | 0.5 (0.4–0.7) | 0.4 (0.3–0.5) | 1.1 (0.4–2.5) | 1.6 (0.7–3.2) | 1.0 (0.4–2.1) |
| IRR (95% CI) | 2.13 (0.89–5.11) | 3.06 (1.49–6.25) | 2.64 (1.20–5.81) | |||
| p for trend 2002/03–2014/15 | 0.005 | 0.3 | ||||
Note: CI = confidence interval, IRR = incidence rate ratio (incident rate in First Nations women/incidence rate in other women per study period).