Table 1 Association of Schistosoma haematobium and STH infections in the school children with various predictors. Coefficents are exponentiated regression coefficients from logistic regression (infection status) or from negative binomial regression (intensity of infection) as compared to the reference category, i.e., Kau school for school, girls for gender, 5–9 years for age class, non-infected plus light infection for S. haematobium and uninfected for the three other infections. Results from the multivariable analyses are presented in the text

Ozi school

195

0.18

2.61**

1.45

2.02*

0.90

4.12***

3.65***

2.44

Boys

128

1.64

2.66**

1.37

1.35

1.22

1.97*

0.51***

1.53

Age 10–12 years

166

4.17*

1.47

0.80

0.97

1.34

0.90

0.50***

0.62

S. haematobium

 Medium: 35–231

82

---

0.98

1.41

1.21

---

1.67

0.46***

0.66

 High: 232–1000

82

---

1.36

1.10

1.15

---

1.22

0.50**

0.97

Hookworm

 Low: 7–106

68

0.90

---

1.34

0.58

0.98

---

0.87

0.61

 Medium: 113–453

73

0.47

---

11.21**

1.38

1.19

---

3.95***

7.58***

 High: 460–3786

71

0.55

---

5.29**

2.59

1.14

---

3.35***

3.70*

T. trichiura

 Low:7–85

77

1.25

2.23

---

1.96

1.01

2.37*

---

0.82

 Medium: 92–290

76

0.60

3.70*

---

3.09*

0.91

3.20**

---

2.19

 High: 297–21231

78

0.26

4.84**

---

5.49***

1.00

4.96***

---

12.00***

A. lumbricoides

 Low: 7–43

38

0.38

0.74

2.35

---

1.12

1.96*

1.48

---

 Medium: 50–297

41

0.55

1.55

2.55

---

1.15

1.85*

2.14**

---

 High: 311–18789

40

0.53

2.39

7.87*

---

0.97

2.29**

5.67***

---