Table 2.
Baseline and cycle characteristics of the patients
| Characteristic | Total |
EFI |
r-AFS |
||||||
|---|---|---|---|---|---|---|---|---|---|
| ≤5 score | ≥6 score | t(z) | P c | I-II stage | III-IV stage | t(z) | P d | ||
| No. of cycles |
199 |
84 |
115 |
|
|
61 |
138 |
|
|
| Average age(y)a |
32.0 ± 4.2 |
33.3 ± 4.9 |
31.1 ± 3.3 |
3.789 |
0.000 |
32.5 ± 3.7 |
31.8 ± 4.4 |
1.085 |
0.279 |
| Duration of infertility(y)b |
5.0(3.0–7.0) |
6.0(4.0–9.0) |
4.0(2.0-6.0) |
−3.893 |
0.000 |
5.0(3.5–7.0) |
4.0(2.0–7.0) |
−1.176 |
0.240 |
| BMI(kg/m2)b |
20.2(18.8–21.7) |
20.2 (18.2–22.0) |
20.3(18.9–21.7) |
−0.374 |
0.708 |
20.6(19.1–21.8) |
20.0(18.5–21.6) |
−1.013 |
0.311 |
| bFSH(iu/L)b |
8.1(6.7–9.9) |
8.6 (6.9–11.7 |
8.0(6.6–9.3) |
−1.645 |
0.100 |
7.9(6.3–9.3) |
8.3(6.9–11.0) |
−1.683 |
0.092 |
| bLH(iu/L)b |
3.8(2.7–5.5) |
3.8(2.7–5.3) |
3.8(2.9–5.6) |
−0.009 |
0.993 |
3.7(2.7–5.5) |
4.0(2.9–5.5) |
−0.706 |
0.480 |
| E2(ng/L)b |
42.4(27.0–61.9) |
47.4(29.7–57.9) |
42.0(27.3–64.7) |
−0.957 |
0.339 |
42.0(22.9–64.3) |
45.9(27.1–60.5) |
−0.864 |
0.388 |
| Antral follicle countb |
10(6.0–14.0) |
8.5(6.0–13.0) |
11.0(8.0–14.0) |
−2.212 |
0.027 |
10.0(8.0–14.0) |
9.5(6.0–14.0) |
−1.662 |
0.097 |
| E2 level on DHCG (ng/L)b |
1987.2(1122.6–3369.1) |
1661.3 (925.2–3599.5) |
2110.3(1239.8–3334.0) |
−1.255 |
0.209 |
2352.6 (1331.7–4241.5) |
1796.9 (1012.2–3251.3) |
−2.065 |
0.039 |
| Start dose of Gn(iu/day)b |
225.0 (150.0–300.0) |
225.0(150.0–300.0) |
225.0(150.0–225.0) |
−2.401 |
0.016 |
225.0 (150.0–225.0) |
225.0 (150.0–300.0) |
−1.853 |
0.064 |
| Duration of stimulation(d)b |
10(9.0 ~ 12.0) |
10(9.0–12.0) |
10(9.0–12.0) |
−0.497 |
0.619 |
11(9–11) |
10(9–12) |
−0.214 |
0.830 |
| Total dose of Gn(iu)a | 2286.6 ± 926.4 | 2439.3 ± 1076.8 | 2175.0 ± 785.3 | −1.909 | 0.058 | 2169.6 ± 784.5 | 2338.3 ± 980.8 | −1.186 | 0.237 |
Note: The Shapiro-Wilk test was performed to determine the normality of distribution. P >0.05 indicates the data followed a normal distribution.
aThe normally distributed data are presented as mean ± SD, including age and total dose of Gn. The t-test was performed to analyse statistical significance.
bThe non-normally distributed data are presented as median (25th-75th percentile). The non-parametric Mann–Whitney test was performed to calculate the Z-score.
cComparison between the two EFI score groups (score ≤5 vs score ≥6).
dComparison between the two r-AFS stage groups (stage I-II vs stage III-IV).