Table 4.
Presence of azotemia 2, by creatinine level.
| Specification 2 | Number of Cases | Reaction to Leptospira 1 | |
|---|---|---|---|
| Positive | Negative | ||
| Stage 4: severe renal azotemia (>5.0 mg/dL) | 6 (9%) | 4 (15%) | 2 (5%) |
| Stage 3: moderate renal azotemia (2.1–5.0 mg/dL) | 8 (12%) | 5 (19%) | 3 (8%) |
| Stage 2: mild renal azotemia (1.4–2.0 mg/dL) | 7 (11%) | 6(22%) | 1 (3%) |
| Stage 1: non-azotemic kidney disease (<1.4 mg/dL) | 25 (38%) | 1 (4%) | 24 (63%) |
| Unknown value of azotemia | 19 (29%) | 11 (41%) | 8 (21%) |
| Total | 65 (100%) | 27 (42%) | 38 (58%) |
1 The positive samples in accordance with the IHC test. 2 The association between the positive results and the IRIS classes (Stage 1 to Stage 4), Pearson χ2 = 23.846, df = 3, p = 0.000.