Skip to main content

Table 1 Characteristics of the patients according to BMI

From: Does obesity have detrimental effects on IVF treatment outcomes?

  BMI
  18.5–24.9 25.0–29.9 ≥30.0 P
(n = 164) (n = 70) (n = 64)
BMI (kg/m2) 21.9 ± 1.7a 27.1 ± 1.4b 33.1 ± 2.2c <0.001
Women’s age (yr) 30.1 ± 3.9 30.8 ± 3.8 30.8 ± 4.4 0.313
Years of infertility 4.1 ± 3.1a 4.7 ± 2.8a,b 5.7 ± 2.9b 0.002
Ever pregnant prior to inclusion 15 (9) 7 (10) 4 (8) 0.443
Smoking 44 (23.7) 18 (25.7) 13 (20.3) 0.106
Baseline FSH (pg/mL) 6.3 ± 1.7 6.2 ± 1.8 6.2 ± 1.6 0.550
Baseline LH (pg/mL) 6.1 ± 2.8 5.9 ± 1.8 4.8 ± 2.7 0.262
Baseline estradiol (pg/mL) 52.8 ± 26.6 50.7 ± 22.2 58.6 ± 27.1 0.193
Antral follicle count 10.7 ± 6.0 10.9 ± 6.6 12.4 ± 6.9 0.206
Polycystic ovaries on ultrasound 22 (13.4) 11 (15.7) 13 (20.3) 0.874
Polycystic ovary syndrome* 35 (26.9) 16 (29.1) 16 (31.4) 0.087
Unexplained infertility 41 (25.0) 16 (22.9) 14 (21.9) 0.657
Poor ovarian reserve 6 (3.7) 3 (4.3 %) 3 (4.7) 0.974
Male factor 38 (23.2) 16 (22.9) 13 (20.3) 0.858
Tubal Factor 34 (20.7) 16 (22.9) 13 (20.3) 0.692
Endometriosis 5 (3.0) 3 (4.3) 4 (6.3) 0.322
Anovulation 15 (9.1) 8 (11.4) 8 (12.5) 0.128
Combined infertility 25 (15.2) 8 (11.4) 9 (14.1) 0.332
  1. Data are presented as mean ± standard deviation or n (%). BMI body mass index, ns non significant (p <0.05)
  2. Values across a row with different superscripts (a-c) indicate significant difference between pregnancy outcome categories (p <0.017), and values across an individual row with matching superscripts (a-c)indicate no significant difference between pregnancy outcome categories. *Excluding 62 cases (34 in normal-weight, 15 in overweight, and 13 in obese group) in which the complete data could not be obtained from the records available