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Table 7 Calibration results for adults: demographic and infection data with calibrated model parameters (mean ± SD) for 12 Msambweni villages

From: Refined stratified-worm-burden models that incorporate specific biological features of human and snail hosts provide better estimates of Schistosoma diagnosis, transmission, and control

Villages V1 V2 V3 V4 V5 V6 V7 V8 V9 V10 V11 V12
Population 508 264 189 247 259 530 472 653 738 456 512 746
Prevalence (%) 33 24 31 23 27 19 14 13 14 7 13 12
Mean Intensity 19 11 30 11 25 6 8 10 7 2 10 6
Human FOIa 1.6 ± 0.6 1.2 ± 0.6 1.6 ± 0.6 1.2 ± 0.6 1.4 ± 0.6 1.0 ± 0.6 0.9 ± 0.7 0.7 ± 0.6 0.8 ± 0.6 0.5 ± 0.6 0.7 ± 0.7 0.7 ± 0.6
Maximum fecundity variable, ρ0 11 ± 5 4 ± 3 11 ± 6 6 ± 4 10 ± 6 5 ± 4 11 ± 6 12 ± 6 8 ± 6 11 ± 7 13 ± 6 11 ± 6
Crowding threshold variable, w0 122 ± 44 122 ± 43 125 ± 43 125 ± 44 124 ± 43 123 ± 44 120 ± 44 120 ± 44 119 ± 44 126 ± 44 122 ± 44 120 ± 44
Aggregation 0.03 ± 0.02 0.05 ± 0.03 0.04 ± 0.02 0.04 ± 0.02 0.04 ± 0.02 0.04 ± 0.03 0.03 ± 0.02 0.04 ± 0.03 0.04 ± 0.03 0.03 ± 0.02 0.03 ± 0.02 0.04 ± 0.02
Pre-adult FOI 3.7 ± 2.3 3.7 ± 2.3 4.0 ± 2.4 3.7 ± 2.3 3.8 ± 2.4 3.7 ± 2.2 3.7 ± 2.3 3.8 ± 2.3 3.8 ± 2.3 3.3 ± 2.2 3.9 ± 2.3 3.8 ± 2.3
  1. aThe mean rate of worm accumulation per year