| Table 2. Crosstabulation table comparing the distribution of confounding variables between the fresh and frozen semen groups. | |||||
| VARIABLE | CATEGORY | FRESH SPERM (N=266) | FROZEN SPERM (N=203) | TOTAL (469 CYCLES) |
p |
|---|---|---|---|---|---|
| INSEMINATION TECHNIQUE |
IVF | 9 (3.4) | 0 | 9 (1.9) | 0.006 |
| IVF/ICSI | 41 (15.4) | 21 (10.3) | 62 (13.2) | ||
| ICSI | 216 (81.2) | 182 (89.7) | 398 (84.9) | ||
| SEMINAL DIAGNOSIS | Normospermia | 196 (73.7) | 168 (82.8) | 364 (77.6) | 0.005 |
| Oligozoospermia | 39 (14.7) | 11 (5.4) | 50 (10.7) | ||
| NA | 31 (11.7) | 24 (11.8) | 55 (11.7) | ||
| OOCYTE TYPE | Fresh | 107 (40.2) | 79 (38.9) | 186 (39.7) | 0.734 |
| Mixed | 5 (1.9) | 6 (3) | 11 (2.3) | ||
| Vitrified | 154 (57.9) | 118 (58.1) | 272 (58) | ||
*The number of cycles for each group and the percentage (%) is indicated in parentheses. NA: Not applicable. The significance level has been considered to be 5%, so p value < 0.05 is considered significant.