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Table 2 Treatment characteristics

From: Total fertilization failure and idiopathic subfertility

  IVF after unsuccessful IUI (n = 45) IVF immediately (n = 58) p-value
Number of canceled cycles 6 (13%)a 2 (3%)b 0.15
Total number of folliclesc 11.1 (7.6) 11.7 (6.0) 0.67
Total number of oocytes retrieved 9.2 (6.3) 9.7 (5.9) 0.66
Total progressively motile sperm count (×106)d 21.3 (21.7) 26.3 (22.8) 0.28
Total number of embryos 6.4 (4.6) 5.5 (3.9) 0.35
Fertilization rate 68 (27.7) 63 (34.7) 0.48
Number of TFF 2/39 (5%) 7/56 (13%) 0.23
Positive pregnancy test (hCG>5IU/l) 11 (25%) 12 (21%) 0.64
Clinical pregnancy rate 8 (18%) 11 (19%) 0.88
Ongoing pregnancy rate 6 (13%) 9 (16%) 0.76
  1. Values are mean ± standard deviation unless indicated otherwise
  2. a 5 patients cancelled due to absence of ovarian response. 1 patient cancelled due to hyperstimulation
  3. b both cancelled due to absence of ovarian response
  4. c follicles > 10 mm on day of hCG administration
  5. d after processing of semen samples used for insemination
  6. IVF = in vitro fertilization, IUI = intrauterine insemination, TFF = total fertilization failure