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Characteristics of men with normozoospermia (group IIa) and oligozoospermia (group IIb) who provided ≥ 3 semen samples and completed the survey
| Group | Number of patients | Number of semen samples | Age (years, mean) | Duration of abstinence (days, mean) | BMI (mean, kg/m²) | Current smokers (n, %) |
|---|---|---|---|---|---|---|
| Group IIa | 87 | 291 | 33.59 | 3.63 | 25.99 | 8 (9.19) |
| Group IIb | 45 | 168 | 33.86 | 3.5 | 25.89 | 1 (2.22) |
