Demographic data and clinical features of 2040 peripheral neuropathy cases and 36 041 controls. Province of Varese, Italy, 1997–1999
| Cases | Controls | |
|---|---|---|
| Age at recruitment: mean (SD) | 60.6 (12.1) | 59.6 (11.5) |
| Female gender: number (%) | 1422 (69.71) | 25674 (71.24) |
| Concomitant conditions : number (%) | ||
| Thyroid disease | 22 (1.08) | 120 (0.33) |
| Diabetes | 232 (11.37) | 2297 (6.37) |
| Anaemia | 161 (7.89) | 1846 (5.12) |
| Chronic renal failure | 18 (0.88) | 82 (0.23) |
| Connective tissue disease | 5 (0.25) | 22 (0.06) |