Table 6.
Subgroup analysis of chromosome results in 340 cases stratified by number of previous spontaneous abortions
| Group | Spontaneous abortions, n | Normal, n (%) | Abnormal, n (%) | OR | 95% CI | p | pf |
|---|---|---|---|---|---|---|---|
| Total | 1 | 42 (24.00) | 55 (33.33) | 1 | 0.017 | 0.002 | |
| 2 | 63 (36.00) | 67 (40.61) | 0.812 | 0.48–1.38 | 0.440 | ||
| ≥3 | 70 (50.00) | 43 (26.06) | 0.469 | 0.27–0.82 | 0.007a | ||
| NC | 1 | 19 (l6.24) | 39 (30.47) | 1 | 0.006 | 0.001 | |
| 2 | 45 (38.46) | 53 (41.41) | 0.574 | 0.29–1.13 | 0.106 | ||
| ≥3 | 53 (45.30) | 36 (28.12) | 0.331 | 0.17–0.66 | 0.001b | ||
| ET | 1 | 23 (39.65) | 16 (43.24) | 1 | 0.510 | 0.408 | |
| 2 | 18 (31.03) | 14 (37.84) | 1.118 | 0.43–2.88 | 0.817 | ||
| ≥3 | 17 (29.31) | 7 (18.92) | 0.592 | 0.20–1.76 | 0.342c |
ET, embryo transfer group; NC, natural cycle group; SA, spontaneous abortion.
a
Comparing 2-SA group with ≥3-SA group; OR, 0.578; 95% CI, 0.35–0.96; χ2 = 4.437, p = 0.035, the difference was not statistically significant (p > 0.013).
b
Comparing 2-SA group with ≥3-SA group; OR, 0.577; 95% CI, 0.32–1.03; χ2 = 3.475, p = 0.062, the difference was not statistically significant (p > 0.013).
c
Comparing 2-SA group with ≥3-SA group; OR, 0.529; 95% CI, 0.17–1.63; χ2 = 1.244, p = 0.265, the difference was not statistically significant (p > 0.013).