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. Author manuscript; available in PMC: 2013 Apr 1.
Published in final edited form as: Fertil Steril. 2012 Jan 23;97(4):959–967.e5. doi: 10.1016/j.fertnstert.2012.01.090

Table 1.

Baseline characteristics of 664 subjects

Characteristic ICI (n=170) IUI (n=171) COS-ICI (n=159) COS-IUI (n=164) p value#
Age, mean ± SD
 Women 32 ± 4* 32 ± 4 32 ± 4 32 ± 4 0.743
 Men 35 ± 5 34 ± 4 34 ± 5 35 ± 5 0.711
Body mass index (kg/m2), mean ± SD (women) 24 ± 5 23 ± 4 23 ± 4 23 ± 4 0.669
Bachelor’s degree (%)
 Women 32 38 43 44 0.089
 Men 36 33 36 42 0.406
White race (%)
 Women 88 88 88 89 0.968
 Men 88 88 89 89 0.924
Nulliparous (women) (%) 62 62 60 58 0.838
Duration of infertility (mo), mean ± SD 44 ± 33 45 ± 32 42 ± 30 40 ± 24 0.466

ICI, intracervical insemination.

IUI, intrauterine insemination.

COS-ICI, controlled ovarian stimulation and intracervical insemination.

COS-IUI, controlled ovarian stimulation and intrauterine insemination.

#

The Chi-square test was used for categorical variables, and the F statistic from an analysis of variance was used for continuous variables.