Predictive value of age-specific FSH levels for IVF-ET outcome in women with normal ovarian function

Table 3 Baseline characteristics and IVF outcomes in the POA and control groups in women aged 33–37 years

Characteristics	33 ~ 37 years old		t/z(χ ² )	P
	Control	POA
n	311	228
Age(y)^a	34.82 ± 1.25	34.86 ± 1.32	−0.327	0.744
Infertility years(y)^a	5.67 ± 3.65	5.43 ± 3.54	0.736	0.462
BMI(kg/m²)^a	21.89 ± 2.98	21.29 ± 2.98	2.336	0.020
FSH(IU/L)^a	6.74 ± 1.10	9.64 ± 1.05	−30.747	<0.001
LH(IU/L)^b	3.67(2.69–4.84)	4. 47 (3.36–5.69)	26.754	<0.001
E₂(ng/L)^b	36.00(25.00–50.48)	37.77(24.00–51.74)	1.036	0.309
FSH/LH^b	1.87(1.41–2.51)	2.18(1.66–2.88)	20.070	<0.001
AFC(n)^a	15.14 ± 6.30	12.98 ± 5.29	4.313	<0.001
Total dose of Gn (IU)^a	2,121.75 ± 766.98	2,470. 68 ± 812.84	−5.087	<0.001
E₂ level on D_HCG (ng/L)^b	3,505.00 (2,276.75–4,800.00)	2,804.00 (1,844.50–4,765.25)	7.670	0.006
Number of retrieved oocytes(n)^a	12.81 ± 6.88	11.06 ± 5.79	3.080	0.002
Rate of POR(%)^c	4.50(14/311)	8.77(20/228)	4.059	0.044^d
Number of frozen embryos (n)^b	4.00(1.00–7.00)	3.00(1.00–6.00)	3.978	0.046
Number of available embryos (n)^b	6.00(3.00–8.00)	5.00(3.00–8.00)	2.920	0.088
Fertilization rate (%)^c	83.33(71.43–92.31)	85.71(70.80–100.00)	2.132	0.144
Cleavage rate (%)^c	100.00 (100.00–100.00)	100.00 (100.00–100.00)	0.177	0.674
Cancellation rate(%)^c	0. 96(3/311)	2.60(6/228)	2.226	0.136^e
Pregnancy rate(%)^c	46.43(143/308)	42.79 (95/222)	0.689	0.406

^a The normally distributed data are presented as the mean ± SD, including age, infertility years, BMI, FSH, AFC, total dose of Gn, and number of retrieved oocytes. The t-test was performed to analyze statistical significance
^bThe non-normally distributed data are presented as the median (25–75th percentile). The non-parametric Mann–Whitney test was performed to calculate the Z-score
^cThe chi-square (χ ²) test was performed to analyze statistical significance
^dThe rate of POR = (the cycles of oocyte yields ≤ 3 + the cycles cancelled egg retrieval)/the total cycles
^eThe cancellation rate only included the cycles of cancelled egg retrieval

ISSN: 1477-7827