Table 1 Demographic and clinical characteristics of the participants (n = 539)
|  | Mean ± SD or n (%) |
|---|---|
Age (years) | 32.97 ± 5.34 |
Sex | |
 Male | 249 (46.2) |
 Female | 290 (53.8) |
Educational level | |
 Primary | 92 (17.1) |
 Secondary | 175 (32.5) |
 University | 272 (50.4) |
 Duration of infertility (years) | 5.55 ± 4.07 |
Cause of infertility | |
 Male factor | 223 (41.4) |
 Female factor | 95 (17.6) |
 Both | 112 (20.8) |
 Unexplained | 109 (20.2) |
Failure of previous treatment | |
 No | 253 (46.9) |
 Yes | 286 (53.1) |
History of abortion | |
 No | 382 (70.9) |
 Yes | 157 (29.1) |