Table 4.
Demographics of the study population of 153 patients and 115 follow-up responders n (%), mean age (range, yr)
| Symptom frequency group | Females | Males | Total |
| All groups | 122 (79.7), 47 (17-81) | 31 (20.3), 51 (28-85) | 153 (100), 48 (17-85) |
| Severe disease | 31, 45 (17-81) | 6, 44 (25-64) | 37 (24.2), 45 (17-81) |
| Moderate disease | 47, 44 (20-72) | 12, 53 (39-70) | 59 (38.6), 46 (20-72) |
| Mild disease | 26, 53 (25-78) | 8, 52 (34-85) | 34 (22.2), 53 (25-85) |
| Chronic disease | 18, 53 (23-81) | 5, 55 (30-80) | 23 (15.0), 54 (23-81) |
| Responders to follow-up | 89 (77.4), 49 (20-81) | 26 (22.6), 52 (25-85) | 115 (75.2), 50 (20-85) |
χ2 for gender; P = 0.889.