Population | Variable | n | r | P |
---|---|---|---|---|
Group 1: Infertility patients | Male age | 123 | 0.244 | <0.006 |
 | Alcohol consumption | 29 | 0.149 | 0.441, NS |
 | Cigarette smoking | 16 | −0.142 | 0.796, NS |
 | Consumption of caffeine-containing beverages | 101 | −0.118 | 0.238, NS |
Group 2: AI donors | Male age | 11 | 0.266 | 0.429, NS |
 | Alcohol consumption | 4 | 0.462 | 0.450, NS |
 | Consumption of caffeine-containing beverages | 6 | 0.058 | 0.919, NS |
Group 3: General population volunteers | Male age | 30 | 0.186 | 0.323, NS |
 | Alcohol consumption | 16 | 0.098 | 0.713, NS |
 | Cigarette smoking | 10 | 0.142 | 0.681, NS |
 | Consumption of caffeine-containing beverages | 29 | 0.115 | 0.543, NS |