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Table 2 Most invasive treatment during the conception cycle by infertility diagnosis (N = 490)

From: Fertility treatments and the risk of preterm birth among women with subfertility: a linked-data retrospective cohort study

  None Drugs IUI* IVF Total P value
N Row% N Row% N Row% N Row% N Col%
Tubal factor 29 37.2% 14 17.9% 9 11.5% 26 33.3% 78 15.9% 0.550
Endometriosis 49 37.4% 18 13.7% 19 14.5% 45 34.4% 131 26.7% 0.169
Ovulation dysfunction 99 37.5% 63 23.9% 41 15.5% 61 23.1% 264 53.9% 0.000
Uterine factor 20 30.8% 7 10.8% 12 18.5% 26 40.0% 65 13.3% 0.022
Male factor 60 30.8% 21 10.8% 27 13.8% 87 44.6% 195 39.8% 0.000
Unexplained infertility 136 47.4% 43 15.0% 32 11.1% 76 26.5% 287 59.5% 0.176
Multiple female factors 45 32.6% 26 18.8% 25 18.1% 42 30.4% 138 28.2% 0.014
Multiple female and male 43 33.1% 19 14.6% 16 12.3% 52 40.0% 130 26.5% 0.002
Total 213 43.5% 77 15.7% 64 13.1% 136 27.8% 490 100.0%  
  1. Women/couples may be in more than one category
  2. *99% of IUI cycles also had ovulation drugs