Table 1.
Population characteristics (N = 2116).
| By Study Centre | Total | |||||
|---|---|---|---|---|---|---|
| Characteristic | Tartu N = 369 1 |
Aarhus N = 396 1 |
Reykjavik N = 600 1 |
Bergen N = 751 1 |
p-Value 2 | N = 2116 1 |
| Age | 56.1 (48.4, 69.6) |
61.1 (50.0, 74.9) |
63.1 (50.7, 74.1) |
61.5 (49.6, 73.5) |
*** | 61.0 (48.4, 74.9) |
| BMI (Body Mass Index) | 27.5 (12.5, 51.0) |
26.1 (16.5, 42.4) |
27.7 (18.9, 46.8) |
26.6 (18.4, 49.4) |
*** | 27.0 (12.5, 51.0) |
| Smoking status | *** | |||||
| Never | 41% | 54% | 43% | 40% | 44% | |
| Ex-smoker | 38% | 37% | 47% | 48% | 44% | |
| Current | 21% | 9.6% | 9.7% | 12% | 12% | |
| Diabetes (yes) | 8.1% | 6.8% | 11% | 9.3% | 9.1% | |
| Hypertension (yes) | 39% | 36% | 44% | 37% | * | 39% |
| Meet recommended weekly exercise (yes) | 34% | 42% | 45% | 54% | *** | 46% |
| Decreased muscle strength | *** | |||||
| None | 41% | 49% | 28% | 44% | 40% | |
| Mild or worse | 59% | 51% | 72% | 56% | 60% | |
| Decreased number of morning erections | ||||||
| None/mild | 59% | 65% | 66% | 65% | 64% | |
| Moderate/severe | 41% | 35% | 34% | 35% | 36% | |
| Decreased sexual performance | * | |||||
| None/mild | 61% | 69% | 68% | 69% | 67% | |
| Moderate/severe | 39% | 31% | 32% | 31% | 33% | |
| Decreased sexual desire/libido | * | |||||
| None/mild | 67% | 77% | 70% | 71% | 71% | |
| Moderate/severe | 33% | 23% | 30% | 29% | 29% | |
| Two or more sexual symptoms | 38% | 31% | 33% | 30% | 33% | |
1 Median (Minimum, Maximum); %. 2 Kruskal–Wallis rank sum test; Pearson’s Chi-squared test. *** p < 0.001; * p < 0.05.