Table 2.
The clinical outcomes of patients in groups A–E stratified by 35 years of age
| <35 years of age | ≥ 35 years of age | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Group A | Group B | Group C | Group D | Group E | P# | Group A | Group B | Group C | Group D | Group E | P# | |
| Cycles (n) | 1425 | 844 | 206 | 183 | 120 | 144 | 269 | 107 | 39 | 25 | ||
| Implantation rate | 63.72b,c(908/1425) | 60.37(1019/1688) | 53.64(221/412) | 45.90(168/366) | 46.67(56/120) | 0.000 | 55.56b,c(80/144) | 52.97(285/538) | 40.19(86/214) | 26.92(21/78) | 40.0(10/25) | 0.000 |
| Pregnancy rate | 63.72a,b(908/1425) | 75.59(638/844) | 72.33(149/206) | 62.30(114/183) | 46.67d(56/120) | 0.000 | 55.56a(80/144) | 73.23(197/269) | 57.0(61/107) | 41.03(16/39) | 40.0(10/25) | 0.000 |
| Live birth | 54.25a,b(773/1425) |
64.57 (545/844) |
64.08 (132/206) |
48.63 (89/183) |
36.67 d(44/120) | 0.000 | 42.36a(61/144) | 59.48(160/269) | 48.60(52/107) | 30.77(12/39) | 24.0(6/25) | 0.000 |
| Singleton |
52.70a,b,c (751/1425) |
33.05(279/844) | 38.84(80/206) | 25.13(46/183) |
36.67d (44/120) |
0.000 |
40.97 (59/144) |
38.29(103/269) | 33.64(36/107) | 23.08(9/39) |
24.0 (6/25) |
0.177 |
| Twin |
1.55a,b,c (22/1425) |
31.52(266/844) | 25.24(52/206) |
23.50 (43/183) |
0.0d (0/120) |
0.000 |
1.39a,b (2/144) |
21.19 (57/269) |
14.95 (16/107) |
7.69 (3/39) |
0.0 (0/25) |
0.000 |
| Multiple pregnancy rate |
3.52a,b,c (32/908) |
62.38 (398/638) |
49.66 (74/149) |
50.0 (57/114) |
0.0d (0/56) |
0.000 |
6.25a,b,c (5/80) |
49.24 (97/197) |
42.62 (26/61) |
31.25 (5/16) |
10.0 (1/10) |
0.000 |
| Monozygotic twins rate |
3.52 (32/908) |
2.66 (17/638) |
1.34 (2/149) |
2.63 (3/114) |
0.0 (0/56) |
0.462 |
6.25 (5/80) |
4.57 (9/197) |
1.64 (1/61) |
0.0 (0/16) |
10.0 (1/10) |
0.462 |
| Early abortion rate |
11.67a (106/908) |
8.31 (53/638) |
8.72 (13/149) |
15.79 (18/114) |
21.43 (12/56) |
0.037 |
20.0 (16/80) |
17.26 (34/197) |
13.11 (8/61) |
18.75 (3/16) |
30.0 (3/10) |
0.758 |
| Abortion rate |
13.33 (121/908) |
11.44 (73/638) |
9.40 (14/149) |
19.30 (22/114) |
21.43 (12/56) |
0.067 |
21.25 (17/80) |
18.78 (37/197) |
14.75 (9/61) |
25.0 (4/16) |
30.0 (3/10) |
0.715 |
| Ectopic pregnancy rate |
0.88 (8/908) |
1.25 (8/638) |
1.34 (2/149) |
0.0 (0/114) |
0.0 (0/56) |
0.597 |
2.50 (2/80) |
0.0 (0/197) |
0.0 (0/61) |
0.0 (0/16) |
10.0 (1/10) |
0.076 |
#comparison among groups A–D. P < .05 was considered statistically significant
aP < .05 compared to group B
bP < .05 compared to group C
cP < .05 compared to group D
dP < .05 between groups D and E