Skip to main content

Table 3 Serum 25 (OH) D concentrations in relation to clinical outcomes of IVF: univariate and multivariate logistic analysis

From: Effect of vitamin D status on normal fertilization rate following in vitro fertilization

Outcomes

Group1

Group2

Group 3

Group 4

Number of cycles

216

210

211

211

Clinical pregnancy rate (%)

59.2%

57.9%

60.0%

63.5%

Univariate (OR(95%CI),P)

1

0.947 (0.567–1.581),0.836

1.035 (0.618–1.734),0.895

1.200 (0.718–2.006),0.486

Multivariatea (OR(95%CI),P)

1

1.007 (0.578–1.752),0.981

0.988 (0.562–1.737),0.968

1.173 (0.674–2.043),0.573

Implantation rate (%)

42.9%

41.4%

44.5%

43.9%

Univariate (OR(95%CI),P)

1

0.941 (0.651–1.361),0.747

1.069 (0.741–1.541),0.722

1.043 (0.726–1.499),0.818

Multivariatea (OR(95%CI),P)

1

0.958 (0.647–1.419),0.931

1.024 (0.690–1.518),0.907

1.021 (0.693–1.506),0.915

Abortion rate (%)

8.5%

10.0%

2.8%

8.8%

Univariate (OR(95%CI),P)

1

1.398 (0.459–4.260),0.556

0.637 (0.172–2.362),0.500

1.373 (0.463–4.070),0.567

Multivariatea (OR(95%CI),P)

1

1.319 (0.365–4.768),0.673

0.732 (0.171–3.126)0.673

1.302 (0.373–4.544),0.679

Live birth rate (%)

53.3%

48.8%

56.7%

55.6%

Univariate (OR(95%CI),P)

1

0.833 (0.502–1.381),0.478

1.144 (0.688–1.903),0.604

1.094 (0.662–1.807),0.726

Multivariatea (OR(95%CI),P)

1

0.876 (0.507–1.515),0.636

1.089 (0.624–1.901),0.765

1.078 (0.626–1.856),0.787

  1. Values are significantly different between groups (P < 0.05)
  2. aAdjusted for maternal age, BMI, AMH, type of infertility, previous pregnancy, seasons when samples were taken, COH protocol, duration of stimulation, number of oocytes retrieved, endometrial thickness, serum progesterone levels on the day of hCG and the number of embryo transferred