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Table 3 Progression to KA depending on baseline rK39 sero-status. Hazard ratios and p-values estimated from fitted Cox proportional hazards regression models

From: Quantification of the natural history of visceral leishmaniasis and consequences for control

Baseline sero-status Total evaluated Progressors (%) Hazard ratio (95 % CI) p
Seronegative, rK39 ELISA < 20CU 1,283 28 (2 %) Ref. N/A
Seropositive, 20CU ≤ rK39 ELISA < 61CU 204 7 (3 %) 1.61 (0.71–3.70) 0.26
Strongly seropositive, rK39 ELISA ≥ 61CU 28 8 (29 %) 17.7 (8.05–38.8) 8.4 × 10−13