Table 1 Clinical characteristics of subjects surveyed
Age | Healthy controls | Patients | ||||
|---|---|---|---|---|---|---|
Number | Proportion females | Number | Proportion females | Acute onset | Duration of illness (>3Â years) | |
21–30 | 25 | 0.6 | 23 | 0.57 | 14 (61 %) | 11 (48 %) |
31–40 | 22 | 0.48 | 20 | 0.65 | 14 (70 %) | 15 (75 %) |
41–50 | 34 | 0.71 | 40 | 0.75 | 32 (80 %) | 27 (68 %) |
51–60 | 71 | 0.76 | 59 | 0.63 | 51 (86 %) | 45 (76 %) |
61–75 | 44 | 0.7 | 51 | 0.8 | 43 (84 %) | 47 (92 %) |