Table 6 Multivariate model selected by stepwise logistic regression results for infection with either S. mansoni or malaria

S. mansoni

Sex

(male; female)

0.81

(0.66-0.99)

0.039

Age

(continuous; +1 year)

1.03

(1.00-1.06)

0.032

Hookworm infection

(uninfected; infected)

1.50

(1.12-2.02)

0.007

Trichuris infection

(infected; uninfected)

1.39

(1.05-1.85)

0.022

Household latrine present?

(no; yes)

0.50

(0.39-0.64)

< 0.001

Enrolled in school?

(no; yes)

2.93

(2.11-4.06)

< 0.001

Education level of household head

(plus one category*)

1.10

(1.04-1.17)

0.003

Source of household water

(clean; river or lake)

1.28

(0.99-1.66)

0.062

Malaria

Sex

(male; female)

0.95

(0.71-1.15)

0.61

Age

(continuous; +1)

0.97

(0.95-0.99)

0.005

Hookworm infection

(uninfected; infected)

1.59

(1.22-2.07)

< 0.001

Are you feverish today?

(no; yes)

1.55

(1.17-2.04)

0.002