Risk factors for major amputation and/or death during 2 years after first minor amputation among persons with diabetes in Finland in 1991–2007 (Cox regression model)
| Risk factor | HR | 95% CI | p Value (Walds test) |
|---|---|---|---|
| SEP | |||
| 1 (Lowest) | 1.00 | (ref) | |
| 2 | 0.98 | 0.90 to 1.07 | 0.6989 |
| 3 | 0.95 | 0.86 to 1.05 | 0.3001 |
| 4 | 0.89 | 0.80 to 1.00 | 0.0405 |
| 5 (Highest) | 0.68 | 0.60 to 0.77 | <0.001 |
| Risk/10 years | 1.64 | 1.58 to 1.70 | <0.001 |
| Gender | |||
| Men | 1.00 | (ref) | |
| Women | 0.93 | 0.86 to 0.99 | 0.0317 |
| Diabetes type | |||
| ITDM (−40 at incidence date) | 1.00 | (ref) | |
| ITDM (40+ at incidence date) | 0.99 | 0.84 to 1.16 | 0.8550 |
| NITDM | 1.09 | 0.93 to 1.27 | 0.2543 |
| Diabetes duration | |||
| Risk/10 years | 1.12 | 1.08 to 1.17 | <0.001 |
| Amputation year | 1.00 | 1.00 to 1.01 | 0.3275 |
ITDM, insulin-treated diabetes mellitus; NITDM, non-insulin-treated diabetes mellitus.