Skip to main content

Table 3 Estimated ORs of factors associated with the prevalence of light and at least moderate intensities of infection obtained from the cumulative logit models

From: Using the hierarchical ordinal regression model to analyse the intensity of urinary schistosomiasis infection in school children in Lusaka Province, Zambia

 

Model 1

Model 2

Model 3

Variable

OR (95% CI)

OR (95% CI)

OR (95% CI)

Sex

Male

1.19 (0.88, 1.63)

1.52 (1.09, 2.13)

1.53 (1.09, 2.10)

Female

1.00

1.00

 

NDVI

1.04 (1.00, 1.07)

1.01 (0.96, 1.05)

1.01 (0.96, 1.05)

T max

0.99 (0.93, 1.04)

1.00 (0.94, 1.07)

1.00 (0.94, 1.07)

Snail abundance

 

1.00 (1.00, 1.05)

1.01 (1.00, 1.01)

1.01 (1.00, 1.01)

Age

5–9 years

0.69 (0.51, 0.96)

0.72 (0.51, 0.99)

Cat1:0.71 (0.50, 0.99)

Cat2:0.96 (0.45, 1.64)

10–20 years

1.00

1.00

1.00

Altitude

Valley

0.36 (0.25, 0.51)

0.48 (0.16, 0.71)

Cat1:0.49 (0.14, 1.75)

Cat2:0.18 (0.04, 0.75)

Plateau

1.00

1.00

1.00

Model selection

LL

1 366.64

1 163.35

1 147.77

AIC

1 382.64

1 205.16

1 198.28

  1. Cat1: Category 1 (light infection); Cat2: Category 2- moderate/high infection; LL: likelihood; AIC: Akaike Information Criterion