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. 2011 Apr 1;11:83. doi: 10.1186/1471-2334-11-83

Table 1.

Characteristics of the study population

Semi Urban Rural
Participants 1161 514
Age (mean, SD) 6.77 ± 3.31 5.85 ± 3.12
Sex male/female (male%) 583/578 (50.2) 270/244 (52.5)
BMI (mean, SD) 15.4 ± 2.39 14.4 ± 1.83
Parasites (%)
 Any helminths 53.2 40.8
Ascaris lumbricoides 38.7 21.8
Trichuris trichiura 25.3 11.8
 Hookworms 11.8 18.5

Body Mass Index (BMI) = Weight(kg)/height(m) squared. Helminth infection was measured by microscopic examination.