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. Author manuscript; available in PMC: 2015 Jun 1.
Published in final edited form as: Fertil Steril. 2014 Mar 29;101(6):1724–1731. doi: 10.1016/j.fertnstert.2014.02.027

Table 1.

Characteristics for subjects with unexplained infertility (UI) and healthy controls.

Characteristic Controls (n = 20) UI (n = 55) P value
Age (y) 25.7 (5.6) 33.1 (4.0) <.001
Gravidity 0.61 (1.1) 0.4 (0.6) NS
HSCORE
 LIF 1.88 (1.1) 2.04 (1.5) NS
 β3 1.96 (1.3) 0.96 (1.3) <.01

Note: LIF = leukemia inhibitor factor; NS = not significant.