Table 6 Fixed effects of univariate and multivariate multilevel negative binomial models of the entomological inoculation rate (EIR). Data analysis is based on census in December 2016–January 2017 and entomological data incorporated from the 5 surveys starting March 2016 (12 month period)

Null model

<0.001

 Constant

0.08

0.02–0.33

<0.001

0.003

0.0001–0.06

Study area (ref = Salvador)

 Libertad

26.50

1.46–479.4

0.027**

26.61

1.47–480.6

0.026**

 Urco Miraño

12.62

0.66–240.8

0.092*

12.49

0.65–238.1

0.093*

 Visto Bueno

56.32

3.18–997.1

0.006**

56.46

3.19–997.8

0.006**

Location (ref = intradomestic)

 Peridomestic

2.42

1.23–4.76

0.010**

2.46

1.23–4.89

0.010**

No. of inhabitants per household

0.91

0.72–1.16

0.455

Inhabitants/room ratio

0.89

0.67–1.17

0.398

Recent settlement in community (ref = no)

 Yes

0.26

0.04–1.81

0.172*

No. of bednets

0.95

0.64–1.39

0.785

Years since last bednet impregnation (ref = never)

 One year

0.32

0.10–1.10

0.07*

 Two years

0.45

0.12–1.68

0.233

Electricity (ref = no)

 Yes

4.66

1.93–11.24

0.001**