Table 4.
Discontinuations, Conceptions, and Conceptions Leading to Live Births up to 24 Months After Beginning Natural Procreative Technology Treatment, by Characteristics of Couples Beginning Treatment
| Couple Characteristics | Couples n | Exited Treatment, n (%) | Conception, n (%) | Live Births, n (%) | Adjusted Conceptions, % | P value | Adjusted Live Births, % | P value |
|---|---|---|---|---|---|---|---|---|
| All couples | 370 | 209 (56) | 116 (31) | 66 (18) | 39 | 29 | ||
| Age, y | 0.0216a | 0.0438a | ||||||
| <35 | 184 | 91 (49) | 64 (35) | 40 (22) | 44 | 34 | ||
| ≥35 | 186 | 118(63) | 52 (28) | 26 (14) | 33 | 23 | ||
| Time trying for birth, y | <0.001a | <0.001a | ||||||
| <1 | 97 | 45 (46) | 40 (41) | 24 (25) | 52 | 38 | ||
| 1-2.9 | 165 | 90 (55) | 58 (35) | 33 (20) | 42 | 33 | ||
| ≥3 | 108 | 74 (69) | 18 (17) | 9 (8) | 15 | 12 | ||
| Had prior pregnancy | 0.0129a | 0.1299a | ||||||
| Yes | 169 | 92(54) | 66(39) | 35 (21) | 52 | 36 | ||
| No | 201 | 117 (58) | 50 (25) | 31 (15) | 29 | 25 | ||
| Had prior live birth | 0.1040a | 0.6249a | ||||||
| Yes | 99 | 58 (59) | 34 (34) | 18 (18) | 54 | 35 | ||
| No | 269 | 150 (56) | 82 (30) | 48 (18) | 34 | 28 | ||
| Received prior IVF | 0.1861b | 0.7490a | ||||||
| Yes | 21 | 16 (76) | 4 (19) | 2 (10) | 30 | 20 | ||
| No | 348 | 192 (55) | 112 (32) | 64 (18) | 40 | 30 | ||
| Received prior IUI | 0.2305a | 0.1836a | ||||||
| Yes | 49 | 33 (67) | 11 (22) | 5 (10) | 21 | 15 | ||
| No | 320 | 175 (55) | 105 (33) | 61 (19) | 41 | 32 | ||
| Physician | 0.7869a | 0.7506a | ||||||
| Dr. Carpentier | 316 | 179 (57) | 98 (31) | 56 (18) | 39 | 30 | ||
| Dr. Rollo | 54 | 30 (56) | 18 (33) | 10 (19) | 40 | 27 | ||
| Menstrual/fertility cycle charting | 0.7551a | 0.5753a | ||||||
| Creighton Model | 297 | 167 (56) | 92 (31) | 53 (18) | 38 | 30 | ||
| Other | 51 | 25 (49) | 18 (35) | 12 (24) | 42 | 30 | ||
| None/missing | 22 | 17 (77) | 6 (27) | 1 (2) | 49 | 10 | ||
| BMI | 0.0812b | 0.0008b | ||||||
| <25 | 154 | 83 (54) | 54 (35) | 38 (25) | 45 | 40 | ||
| ≥25 | 121 | 65 (54) | 34 (28) | 12 (10) | 31 | 16 | ||
| Start date (tertiles) | 0.0850a | 0.8055a | ||||||
| Dec 1990-June 2005 | 113 | 72 (64) | 30 (27) | 17 (15) | 33 | 25 | ||
| June 2005-Mar 2010 | 130 | 58 (45) | 44 (34) | 31 (24) | 42 | 34 | ||
| Mar 2010- Dec 2013 | 126 | 79 (63) | 41 (33) | 18 (14) | 38 | 28 |
BMI body mass index, IUI intrauterine insemination, IVF in vitro fertilization
aFleming-Harrington weighted Renyi test
bAdjusted log-rank test