Table 1.
Birth weight and birth outcomes by maternal glucose levels within the nondiabetic range (≤7.8 mmol/l 60 min after a 50-g glucose load) in the retrospective Cambridge Wellbeing Study
| Outcome | Maternal glucose level (mmol/l)* |
Trend (per +1 mmol/l) | Ptrend | ||||
|---|---|---|---|---|---|---|---|
| <4.0 | 4.1–5.0 | 5.1–6.0 | 6.1–7.0 | 7.1–7.8 | |||
| n | 311 | 1,050 | 1,016 | 554 | 227 | ||
| Birth weight (g) | 3,446 (3,398–3,496) | 3,514 (3,488–3,540) | 3,529 (3,502–3,555) | 3,606 (3,570–3,642) | 3,622 (3,555–3,690) | 46 ± 8 | <0.0001 |
| Assisted delivery (%) | 14.4 (9.6–19.3) | 19.9 (17.1–22.6) | 21.5 (18.6–24.3) | 20.4 (16.5–24.3) | 27.8 (21.3–34.3) | 2.1 ± 0.8 | 0.006 |
| Emergency cesarean delivery (%) | 10.9 (6.1–15.8) | 15.5 (12.8–18.3) | 17.7 (14.8–20.5) | 20.4 (16.5–24.2) | 27.8 (21.5–34.1) | 3.4 ± 0.8 | <0.0001 |
| Elective cesarean delivery (%) | 9.1 (4.5–13.6) | 13.3 (10.7–15.8) | 14.3 (11.7–17.0) | 16.2 (12.6–19.8) | 26.5 (20.8–32.3) | 3.1 ± 0.7 | <0.0001 |
Data are means (95% CI) or means ± SEM adjusted for sex and parity. n = 3,158.
*
After a 50-g oral glucose challenge at 27–29 weeks of gestation.