Table 1. Characteristics and semen parameters of male patients <34 and ≥34 years of age.
| Variable | <34 years of age | ≥34 years of age | p-value | ||||
|---|---|---|---|---|---|---|---|
| Value | Min | Max | Value | Min | Max | Max | |
| Age (y) | 30.7±2.3 | 23 | 33 | 39.7±4.7 | 34 | 55 | <0.001 |
| BMI (kg/m2) | 22.6±3.2 | 16.9 | 35.7 | 23.4±2.8 | 18.2 | 30.5 | 0.106 |
| Smoking (%) | 17 | 25 | 0.220 | ||||
| Diabetes (%) | 0 | 0 | - | ||||
| Abstinence period (d) | 3.5±1.4 | 1 | 7 | 3.6±1.6 | 1 | 8 | 0.528 |
| Semen collection to examination time (min) | 60 (48) | 12 | 204 | 65 (46) | 12 | 196 | 0.534 |
| Volume (mL) | 3.1±1.3 | 0.5 | 6.4 | 2.6±1.1 | 0.5 | 6.0 | 0.038 |
| Motility (%) | 49 (22) | 6 | 91 | 41 (22) | 6 | 89 | 0.016 |
| BCF (Hz) | 9.2±0.9 | 6.7 | 11.9 | 8.5±1.1 | 5.2 | 11.2 | <0.001 |
| sORP (mV/concentration/mL) | 0.71±1.20 | −0.90 | 5.93 | 1.74±3.12 | −0.25 | 24.40 | 0.003 |
| sORP positivity (%) | 12 | 33 | 0.002 | ||||
Values are presented as mean±standard deviation, number only, or number (%).
Min, minimum; Max, maximum; BMI, body mass index; BCF, beat cross frequency; sORP, static oxidation reduction potential; -, not available.