Table 1.
Distribution of demographic, covariate, and outcome data.a
| Table 1. Distribution of demographic, covariate, and outcome data.a | |
| Characteristic | Value |
| Age (years) | 35.9 ± 4.21 |
| BMI | 24.2 ± 5.09 |
| Caucasian | 693 (90.6) |
| Current smoker | 50 (6.5) |
| Former smoker | 223 (29.2) |
| Previous live birth | 181 (23.6) |
| Ampules of gonadotropinsb | 34.4 ± 18.0 |
| Protocol (downregulation) b,c | 604 (73.1) |
| ICSI procedure (yes)b | 259 (31.3) |
| No. of embryos transferredb | 3.15 ± 1.33 |
| Lipids (mg/dL)d | 512 ± 113 |
| Cholesterol | 162 ± 35.7 |
| Triglycerides | 93.6 ± 55.5 |
| Infertility diagnosis | |
| Tubal factor | 143 (18.7) |
| Ovulatory dysfunction | 99 (12.9) |
| Male factor | 267 (34.9) |
| Unexplained | 256 (33.5) |
| IVF/ICSI outcomesb | |
| Failed implantation | 229 (27.7) |
| Chemical pregnancye | 177 (21.4) |
| Spontaneous abortion | 124 (15.0) |
| Other (ectopic/stillbirth) | 11 (1.33) |
| Live birth | 286 (34.6) |
| Values are mean ± SD or n (%).an = 765 women, 827 cycles. bCalculated from cycle-level data. cOvarian stimulation protocol, coded as downregulation versus other (antagonist or flare). dTotal lipids calculated from cholesterol and triglycerides using the Philips formula (Bernert et al. 2007; Phillips et al. 1989a). eChemical pregnancy: defined as a luteal hCG measurement of ≥ 5.0 mIU/mL with no further evidence (gestational sac and fetal heartbeat) of a continued pregnancy. | |