Table 2.
Distribution of clinical risk factors between “CIN” group and “No CIN” group.
| Risk factors | CIN (n = 25) | No CIN (n = 225) | p value | Relative risks | 95% CI | |
|---|---|---|---|---|---|---|
| Lower | Upper | |||||
| Dehydration | 8 (32%) | 20 (8.9%) | 0.003 | 3.73 | 1.78 | 7.84 |
| Abnormal routine blood investigations | 7 (29%) | 48 (21.8%) | 0.457 | 1.35 | 0.59 | 3.06 |
| Preexisting renal disease | 6 (24%) | 13 (5.8%) | 0.006 | 3.84 | 1.74 | 8.45 |
| Diabetes mellitus | 6 (24%) | 25 (11.1%) | 0.100 | 2.23 | 0.97 | 5.15 |
| Previous contrast use | 6 (24%) | 2 (0.9%) | 0.000 | 9.56 | 5.30 | 17.21 |
| Hypertension | 4 (16%) | 17 (7.6%) | 0.143 | 2.08 | 0.79 | 5.49 |
| Previous renal surgery | 2 (8%) | 5 (2.2%) | 0.148 | 3.02 | 0.88 | 10.37 |
| Cardiac failure | 2 (8%) | 1 (0.4%) | 0.027 | 7.16 | 2.94 | 17.43 |
| Nephrotoxic drug intake | 3 (12%) | 19 (8.4%) | 0.469 | 1.41 | 0.46 | 4.35 |
∗ p value calculated using Fisher's exact test or chi-square test wherever appropriate; correlation was considered significant if p < 0.05.