Variables | Group 1 N = 303 No (%) | Group 2 N = 18 No (%) | Z test | P value |
Diabetes mellitus | 118 (38.9) | 3 (16.7) | 3.5 | 0.05 |
Hypertension | 84 (27.7) | 2 (11.1) | 2.3 | 0.1 |
Obstructive uropathy | 18 (5.9) | 1 (5.5) | 0.004 | 0.9 |
Glomerulopathy | 48 (15.8) | 4 (22.2) | 0.5 | 0.4 |
Unknown | 35 (11.5) | 8 (44.4) | 15.8 | <0.0006 |