| Duration of evolution of diabetes | Diabetic sensory neuropathy | Total (%) | |
| Yes (%) | No (%) | ||
| Less than 5 years | 16 (55.2) | 13 (44.8) | 29 (58.0) |
| [5 to 10 years] | 7 (70) | 3 (30) | 10 (20.0) |
| 10 years and over | 11 (100) | 0 (0) | 11 (22.0) |
| Total | 31 (62) | 19 (38) | 50 (100.0) |