Semen quality according to typical (last week represented a typical week) alcohol intake and binging during the past 30 days among respectively 553 and 1221 healthy, young Danish men
| Alcohol intake | N | Semen volume (mL) | Sperm concentration (million/mL) | Total sperm count (million) | Motility (%) | Morphology* (%) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| M | 25–75 | M | 25–75 | M | 25–75 | M | 25–75 | M | 25–75 | ||
| Units in a typical week, N=553 | |||||||||||
| 0 | 122 | 3.3 | 2.6; 4.4 | 39 | 19; 68 | 132 | 62; 249 | 55 | 46; 67 | 7.8 | 3.9; 12.0 |
| 1–5 | 93 | 3.3 | 2.3; 4.2 | 50 | 28; 87 | 175 | 82; 291 | 58 | 48; 68 | 7.8 | 4.5; 12.0 |
| 6–10 | 72 | 3.2 | 2.3; 4.1 | 50 | 23; 89 | 187 | 64; 302 | 58 | 47; 67 | 5.8 | 3.0; 11.1 |
| 11–15 | 82 | 3.2 | 2.6; 4.1 | 41 | 21; 73 | 152 | 70; 260 | 55 | 46; 69 | 7.0 | 4.1; 11.6 |
| 16–20 | 64 | 3.0 | 2.2; 4.1 | 51 | 32; 83 | 163 | 81; 254 | 58 | 48; 69 | 7.5 | 5.0; 11.0 |
| 21–25 | 47 | 2.9 | 2.1; 4.0 | 50 | 30; 97 | 141 | 98; 262 | 60 | 50; 71 | 7.0 | 5.9; 8.8 |
| 26–30 | 27 | 3.4 | 2.2; 4.8 | 34 | 13; 81 | 147 | 18; 285 | 53 | 39; 66 | 8.0 | 4.5; 10.5 |
| 31–35 | 14 | 3.0 | 1.7; 4.7 | 43 | 18; 59 | 96 | 41; 176 | 55 | 46; 61 | 6.3 | 4.0; 8.8 |
| 36–40 | 11 | 3.6 | 2.2; 4.0 | 41 | 13; 77 | 108 | 57; 158 | 67 | 52; 79 | 8.0 | 2.3; 11.0 |
| >40 | 21 | 3.6 | 2.6; 4.7 | 33 | 12; 70 | 86 | 48; 245 | 62 | 50; 71 | 6.5 | 2.5; 11.0 |
| Number of binge episodes during the past 30 days† N=1221 | |||||||||||
| 0 | 176 | 3.2 | 2.3; 4.2 | 49 | 23; 81 | 145 | 67; 257 | 57 | 46; 68 | 7.5 | 3.5; 11.1 |
| 1–2 | 255 | 3.3 | 2.4; 4.5 | 47 | 24; 80 | 153 | 76; 282 | 59 | 47; 68 | 7.5 | 4.0; 11.5 |
| 3–5 | 425 | 3.3 | 2.4; 4.4 | 48 | 22; 88 | 164 | 69; 300 | 58 | 47; 68 | 7.3 | 4.0; 11.5 |
| 6–9 | 258 | 3.3 | 2.3; 4.2 | 43 | 22; 77 | 137 | 69; 259 | 57 | 47; 69 | 6.5 | 4.0; 9.5 |
| >9 | 92 | 3.2 | 2.3; 4.2 | 41 | 20; 73 | 130 | 61; 239 | 56 | 44; 70 | 6.0 | 3.5; 9.1 |
Presented as median (M) and 25 and 75 centiles (25–75).
*Counted for 904 men of whom 397 stated that last weeks alcohol intake represented a typical week.
†Binging defined as alcohol intake of more than 5 units on one occasion.