| Risk factor | Frequency | Percentages (%) |
| Age group <24 - 34 35 - 54 55 - ≥ 65 Smoked Not smoked Consume alcohol No alcohol History of mumps No history Diabetes mellitus No diabetes Hypertension No hypertension History of groin surgery No groin trauma History of trauma to the groin No groin trauma History of sexually transmitted infection No sexually transmitted infection Total |
100 194 7 16 285 18 283 13 288 15 286 22 279 13 288 9 292 21 280 301 |
33.2 64.5 2.4 5.3 94.7 5.8 94.2 4.3 95.7 5.0 95.0 7.3 92.7 4.3 95.7 3.0 97.0 7.0 93.0 100 |