Table 3.
Sperm DFI, semen volume, and routine sperm parameters in cases of primary and secondary male infertility and patients whose spouse experienced unexplained miscarriage
| Clinical group | Number (%) | Age (years) # | Sperm DFI (%)* | Semen volume (ml) △ | Sperm concentration (× 106/ml)◊ | Total sperm count (× 106)△ | Progressive motility (%)△ | TPMSC (× 106)△ |
|---|---|---|---|---|---|---|---|---|
| Primary infertility | 1442 (28.2) | 33.6±5.2/33.0 | 20.3±12.4/17.2 | 2.8±1.2/2.8 | 59.3±43.0/48.7 | 155.3±125.9/124.9 | 36.9±12.8/37.4 | 61.7±54.8/48.4 |
| Secondary infertility | 1318 (25.8) | 37.7±6.8/37.0 | 20.5±12.0/17.0 | 2.7±1.3/2.7 | 62.6±43.5/54.0 | 159.0±122.0/128.7 | 38.0±11.1/38.6 | 63.2±52.8/50.6 |
| Unexplained miscarriage | 2354 (46.0) | 31.8±4.9/31.0 | 17.6±10.9/14.6 | 2.9±1.3/2.8 | 62.7±41.4/54.3 | 173.1±127.0/143.5 | 40.4±10.8/40.4 | 71.7±55.5/59.1 |
| p value | - | 0.000 | 0.000 | 0.000 | 0.005 | 0.000 | 0.000 | 0.000 |
Data presented as mean ± standard deviation/median or n (%) unless otherwise noted
TPMSC: total progressive motile sperm count
#Age was significantly different between the unexplained miscarriage, primary infertility, and secondary infertility groups (p < 0.05)
*Sperm DFI of the unexplained miscarriage group was significantly lower than that of the primary and secondary infertility groups (p = 0.000) while no significant difference was indicated between the infertility groups
△Semen volume, total sperm count, progressive motility, and TPMSC of the unexplained miscarriage group were significantly higher than that of the primary and secondary infertility groups (p = 0.000 or p = 0.002) while no significant difference was indicated between the infertility groups
◊Sperm concentration of the primary infertility group was significantly lower than that in unexplained miscarriage groups (p = 0.005)