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. Author manuscript; available in PMC: 2015 Jul 15.
Published in final edited form as: Fertil Steril. 2013 Jul 19;100(5):1381–1388. doi: 10.1016/j.fertnstert.2013.06.035

Table 1.

Probability and cost variables.

Base case Range Reference
Probability variables
 Fertilization rates
  Failed fertilization with conventional IVF 0.084 0.084–0.227 text, 3–6
  Failed fertilization with ICSI 0.013 0–0.036 text, 3–6
  Poor fertilization with conventional IVF 0.078 NA text
  Poor fertilization with conventional IVF and ICSI 0.019 NA text
 Live birth rates
  IVF for unexplained infertility, aged <35 y 0.423 0.41–0.436 14
  Frozen ET for unexplained infertility, aged <35 y 0.365 NA 14
  First donor sperm IUI cycle after ICSI failure 0.276 NA 14
Cost variables
 IVF 13,842 6,920–27,685 20, 21
 ICSI 1,763 1,141–4,280 22
 Embryo cryopreservation 788 393–1,578 20
 Frozen ET cycle 6,313 3,155–12,626 20
 Donor insemination 1,788 1,114–3,607 22

Note: Cost variables are presented in 2012 US dollars. ICSI = intracytoplasmic sperm injection; NA = not available.

Vitek. Cost-effectiveness analysis of split IVF-ICSI.