Table 3. Multivariate analysis for laboratory values associated with fatal leptospirosis patients, Puerto Rico, 2010.

Model	Clinical test 1	OR (95% CI)	P-value	Clinical test 2	OR (95% CI)	P-value	Model P-value
1	Decreased serum bicarbonate	0.51 (0.12–0.91)	0.006	Elevated serum creatinine	2.93 (1.03–11.72)	0.042	<0.001
2	Decreased serum bicarbonate	0.50 (0.21–0.81)	<0.001	Decreased platelet count	1.02 (1.00–1.05)	0.015	<0.001
3	Decreased serum bicarbonate	0.19 (<0.01–0.78)	<0.001	Elevated WBC count	1.25 (1.03–1.75)	0.025	<0.001
4	Elevated WBC count	1.17 (1.03–1.38)	0.014	Elevated serum creatinine	2.09 (1.14–4.71)	0.010	0.001

Abbreviations: OR = odds ratio; CI = confidence interval; WBC = white blood cell