TABLE 2.
IVF and ICSI treatment outcomes by male BMI (n=735) and female BMI (n=721).
| Male BMI (kg/m2) (n = 735) | Female BMI (kg/m2) (n = 721) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Outcome | ≤ 24.9, n = 224a (30.5) | 25–29.9, n = 334 (45.4) | 30–34.9, n = 122 (16.6) | ≥35, n = 55 (7.5) | <18.5, n = 32 (4.4) | 18.5–24.9, n = 407 (56.5) | 25–29.9, n = 147 (20.4) | 30–34.9, n = 72 (10.0) | ≥35, n = 63 (8.7) |
| Fertilization rate, mean (95% Cl) | 89(87–91) | 91 (90–93) | 94 (91–97) | 88 (84–92) | 88 (83–93) | 92 (90–93) | 91 (88–93) | 88 (84–92) | 90 (86–94) |
| Embryo score (day 5), mean (95% Cl) | 14.7 (14.2–15.2) | 14.6 (14.2–15.0) | 15.1 (14.4–15.8) | 15.0(14.0–16.1) | 15.5 (14.1–17.0) | 14.6(14.2–15.0) | 15.3(14.6–15.9) | 13.7 (12.8–14.6) | 15.0(13.9–16.0) |
| Pregnancy | |||||||||
| n (%) | 111 (49.6) | 189 (56.6) | 67 (54.9) | 28(50.9) | 17 (53.1) | 225 (55.3) | 89 (60.5) | 33 (45.8) | 27 (42.9) |
| aRR (95% Cl) | 1.0 | 1.15 (0.98–1.34) | 1.15 (0.94–1.42) | 1.08 (0.80–1.46) | 0.92 (0.66–1.28) | 1.0 | 1.10(0.94–1.28) | 0.86 (0.67–1.12) | 0.80(0.59–1.08) |
| Live birth | |||||||||
| n (%) | 103 (46.2) | 169 (50.6) | 58 (47.5) | 25 (46.3) | 17 (53.1) | 199 (49.0) | 83 (56.5) | 28 (39.4) | 24 (38.1) |
| aRR (95% Cl) | 1.0 | 1.11 (0.93–1.32) | 1.07 (0.85–1.36) | 1.07 (0.76–1.49) | 1.02 (0.73–1.43) | 1.0 | 1.16(0.98–1.38) | 0.87 (0.64–1.17) | 0.83 (0.59–1.17) |
Note: Analyses conducted using generalized linear models for fertilization rate and embryo score (reporting least-squares mean and 95% confidence interval) and Poisson regression with robust error variance for pregnancy and live birth (reporting frequency [%] and relative risk and 95% confidence interval). All models adjusted for male and female age, partner BMI, and parity. Missing one observation for fertility rate and two observations for live birth. Day-5 embryo score includes the 528 couples (72%) who had a day-5 embryo score.
a
Includes one man with BMI <18.5 kg/m2.