Table 1

Environmental Exposure and Leptospirosis, Peru

Michael A.S. Johnson*†, Hannah Smith†, Priya Joseph†, Robert H. Gilman*†, Christian T. Bautista*‡, Kalina J. Campos*§, Michelle Cespedes†, Peter Klatsky†, Carlos Vidal¶, Hilja Terry†, Maritza M. Calderon*§, Carlos Coral†, Lilia Cabrera†, Paminder S. Parmar†, and Joseph M. Vinetz#

Author affiliations: *Asociación Benéfica Prisma, Lima, Peru; †Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA; ‡U.S. Naval Medical Center Research Detachment, Lima, Peru; §Universidad Peruana Cayetano Heredia, Lima, Peru; ¶Ministry of Health, Iquitos, Peru; #University of California San Diego School of Medicine, La Jolla, California, USA

Main Article

Site description and demographic characteristics of the study population

Feature	Pampas San Juan	Rural communities^a	Belen
Study period	April 1997	Feb–Jun 2000	Feb–Oct 2001
Population	38,721	1,197	3,704
No. households selected (%)	7,744 (20)	132 (56)	386 (60)
No. participants tested (%)	150 (0.4)	316 (26)	650 (18)
Sample population
Female (%)	57 (38)	152 (48)	356 (55)
Age >18 y (%)	64 (43)	170 (54)	533 (82)
Mean (SD^b) age, y	17.5 (14.5)	24.9 (17.9)	30 (15.2)
Median	11	22	29
Mean (SD) no. persons per household	5.7 (2.2)	2.4 (1.6)	1.7 (0.9)
Range	3–14	1–9	1–5

^aCombined populations of the villages of San Carlos, Moralillo, and Buen Pastor in the peri-Iquitos area.
^bSD, standard deviation.

Main Article

Page created: February 22, 2011

Page updated: February 22, 2011

Page reviewed: February 22, 2011

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