Table 3:
Crude and Adjusted Risk Ratios and 95% Confidence Intervals for the Association between Endometrial Pattern and Clinical Intrauterine Pregnancy.
| Endometrial Pattern | Cycles (n) | Clinical Pregnancies (n) | Pregnancy Rate (%) | Crude Risk Ratio (95% CI)d | Adjusted Risk Ratio (95% CI)d |
|---|---|---|---|---|---|
| ALL CYCLES a | |||||
| Semitrilinear | 157 | 75 | 47.8% | 0.85 (0.69,1.02) | 0.92 (0.76,1.10) |
| Unilinear | 37 | 25 | 67.6% | 1.02 (0.76,1.36) | 1.07 (0.85,1.36) |
| Trilinear (ref) | 776 | 436 | 56.2% | Referent | Referent |
| FRESH CYCLES b | |||||
| Semitrilinear | 86 | 39 | 45.4% | 0.83 (0.66,1.06) | 0.90 (0.72,1.12) |
| Unilinear | 28 | 18 | 64.3% | 1.05 (0.77, 1.44) | 1.11 (0.86,1.42) |
| Trilinear (ref) | 639 | 363 | 56.8% | Referent | Referent |
| FROZEN CYCLES c | |||||
| Semitrilinear | 71 | 36 | 50.7% | 0.86 (0.57, 1.29) | 0.87 (0.57,1.33) |
| Unilinear | 9 | 7 | 77.8% | 1.33 (0.76, 2.32) | 1.18 (0.59, 2.34) |
| Trilinear (ref) | 137 | 73 | 53.3% | Referent | Referent |
Model was adjusted for endometrial thickness, # embryos transferred, ovarian reserve, stimulation protocol, transfer day, BMI, age at egg retrieval, peak oestradiol, assisted hatching, tobacco use, embryo quality and type of ART cycle.
Model adjusted for endometrial thickness, # embryos transferred, ovarian reserve, stimulation protocol, transfer day, BMI, age at egg retrieval, peak oestradiol, assisted hatching, tobacco use, embryo quality, IVF technique and number of fertilized eggs.
Model adjusted for endometrial thickness, # embryos transferred, ovarian reserve, BMI, age at egg retrieval, peak oestradiol, assisted hatching, tobacco use and embryo quality.
95% CI = 95% Confidence Interval.