| mean ± SD or r | P |
---|---|---|
Age (years) | −0.058 | 0.354 |
Duration of infertility (years) | −0.176 | 0.005 |
Sex |  | 0.756†|
 Male | 49.46 ± 9.88 |  |
 Female | 49.09 ± 8.92 |  |
Educational level |  | 0.565‡ |
 Primary | 48.21 ± 9.35 |  |
 Secondary | 49.83 ± 9.56 |  |
 University | 49.32 ± 9.14 |  |
Cause of infertility |  | 0.056‡ |
 Male factor | 47.53 ± 9.99 |  |
 Female factor | 51.71 ± 8.73 |  |
 Both | 50.20 ± 9.04 |  |
 Unexplained | 48.85 ± 8.73 |  |
Failure of previous treatment |  | 0.056†|
 No (First treatment) | 50.37 ± 9.22 |  |
 Yes | 48.13 ± 9.37 |  |
History of abortion |  | 0.260†|
 No | 49.62 ± 9.12 |  |
 Yes | 48.07 ± 10.01 |  |