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Table 5 Subgroup analysis: comparison of clinical outcomes between group I (male partner age < 40 years) and group II (male partner ≥ years) in women ≤ 35 years

From: Effect of paternal age on treatment outcomes in couples undergoing assisted reproductive technology for non-male factor infertility: a retrospective analysis of 809 cycles

 

Group I (< 40 years) (reference group) (n = 493)

Group II (≥ 40 years) (n = 108)

OR (95% CI)

aOR (95% CI)

Live birth rate*

158/493

32.1%

38/108

35.2%

1.15 (0.74, 1.78)

1.18 (0.75, 1.86)

Clinical pregnancy rate*

194/493

39.4%

46/108

43.8%

1.14 (0.75, 1.74)

1.13 (0.73, 1.76)

Miscarriage rate

34/194

17.5%

6/46

13.0%

0.71 (0.28, 1.80)

0.63 (0.23, 1.70)

  1. aOR adjusted odds ratio—female body mass index, indication for ART, day of transfer (cleavage vs. blastocyst), and type of transfer (fresh vs. frozen), ART assisted reproductive technology, CI confidence interval, OR odds ratio
  2. *Calculated per embryo transfer
  3. † Calculated per clinical pregnancy