Table 2 Incidence rates and rate-ratios for pyelonephritis according to the burden of comorbidity
From: Risk and outcome of pyelonephritis among renal transplant recipients
Subgroup | CCI-scorea | No.b (%) | PN, hospitalizations, No.c | IR(95 % CI) | IRR (95 % CI) | P value |
|---|---|---|---|---|---|---|
Renal transplant recipients | Low (0) | 1,393 (52.5) | 131 | 15.9 (13.4–18.9) | 73.5 (56.1–96.3) | <.0001 |
Population controls | Low (0) | 43,253 (87.9) | 88 | 0.22 (0.18–0.27) | 1 (Reference) | |
Renal transplant recipients | Medium (1–2) | 707 (26.6) | 60 | 17.8 (13.9–23.0) | 36.9 (21.5–63.2) | <.0001 |
Population controls | Medium (1–2) | 4,954 (10.1) | 17 | 0.48 (0.30–0.78) | 1 (Reference) | |
Renal transplant recipients | High ≥ 3 | 556 (20.9) | 70 | 27.9 (22.0–35.2) | 16.0 (8.2–31.0) | <.0001 |
Population controls | High ≥ 3 | 1,019 (2.1) | 10 | 1.74 (0.94–3.24) | 1 (Reference) |