| Effect | Crude Hazard Ratio | 95% C.I. Lower | 95% C.I. Upper | p-value |
| SUV |
|
|
|
|
| Group I vs group II | 3.05 | 2.18 | 4.25 | <0.0001 |
| Group I vs group III | 3.63 | 2.65 | 4.97 | <0.0001 |
| Group II vs group III | 1.19 | 0.98 | 1.45 | 0.084 |