. 2015 Jun 17;13:63. doi: 10.1186/s12958-015-0056-6

Table 4.

Baseline characteristics and IVF outcome in POA and control groups in women with age 38–41 years old

	38 ~ 41 years old		t/z(χ ² )	p
	Control	POA
n	59	39
Age (y)^a	39.07 ± 1.10	38.95 ± 1.05	−0.535	0.594
Infertility years(y)^a	6.95 ± 5.21	6.59 ± 4.08	−0.387	0.700
BMI (kg/m²)^a	22.36 ± 3.28	21.62 ± 1.64	−1.481	0.142
FSH(IU/L)^a	7.05 ± 0.97	9.79 ± 0.87	14.27	<0.001
LH(IU/L)^b	3.39(2.48–4.23)	3.63(3.01–4.53)	−1.513	0.13
E₂ (ng/L)^b	35.95(29.60–49.80)	39.71(31.38–53.97)	−0.947	0.344
FSH/LH^b	2.12(1.63–2.84)	2.84(2.13–3.20)	10.175	0.001
AFC(n)^a	11.17 ± 5.09	9.58 ± 3.33	−1.705	0.092
Total dose of Gn (IU)^a	2,633.63 ± 1000.45	3,388.92 ± 1638.73	2.778	0.007
E₂ level on D_HCG (ng/L)^b	2,474.20 (1,789.25–3,954.14)	2,437.00 (1,272.67–3,719.84)	0.685	0.494
Number of retrieved oocytes (n)^a	10.26 ± 5.75	8.36 ± 4.36	−1.698	0.093
The rate of POR (%)^c	5.08(3/59)	20.51(8/39)	5.609	0.018^d
Number of frozen embryos (n)^b	2.00(0.00–4.00)	2.00(0.00–4.00)	−0.470	0.638
Number of available embryos (n)^b	4.50(3.00–7.00)	5.00(3.00–7.00)	−0.129	0.898
Fertilization rate (%)^c	79.29(58.33–96.25)	89.44(64.39–100.00)	−1.587	0.113
Cleave rage rate (%)^c	98.75 (100.00–100.00)	100.00 (100.00–100.0)	−1.941	0.052
Cancellation rate (%)^c	1.70(1/59)	7.69(3/39)	2.157	0.142^e
Pregnancy rate (%)^c	25.86(15/58)	34.29(12/36)	0.606	0.436

^aThe 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