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Table 2 Participant characteristics for the combined cohorts

From: Protocol and baseline data for a multi-year cohort study of the effects of different mass drug treatment approaches on functional morbidities from schistosomiasis in four African countries

Characteristics S. mansoni S. haematobium
N = 1373 N = 1070
n % n %
Schistosome egg-positive children 843 62% 281 27%
Female 721 53% 524 49%
Infection intensity of egg-positive children
 Light (1–99 epg; 1–49 eggs/10 mL) 439 33% 231 22%
 Moderatea (100–399 epg) 264 20% NAa NAa
 Heavy (≥ 400 epg; ≥50 eggs/ 10 mL) 140 10% 50 5%
Stunting 88 7% 232 22%
Wasting 262 20% 123 12%
Anemia 549 42% 513 50%
Liver Pattern
 A 1120 86%  
 B 174 13%  
 C and above 7 <1%  
  mean SD mean SD
Age (years) 7.5 0.5 7.5 0.5
VO2 (mL/kg/min) 49.0 3.2 50.2 3.4
Portal vein diameter (mm) 7.2 1.1  
PedsQL  Total 84.6 12.7 86.6 19.9
 Physical 89.1 16.8 87.4 24.1
 Emotional 74.5 15.7 92.9 14.5
 Social 91.6 16.5 84.0 27.2
 School 80.5 17.5 85.0 15.9
  1. Not equal to the sum of light, moderate, and heavy infection prevalence due to rounding
  2. a S. haematobium intensity is classified as light or heavy; there is no intermediate intensity