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Table 7 Determinants of malaria transmission dynamics in villages around Lake Tana, Ethiopia, October 2016–June 2017

From: Travel to farms in the lowlands and inadequate malaria information significantly predict malaria in villages around Lake Tana, northwest Ethiopia: a matched case–control study

Variables

β

Unadjusted mORa

p-value

β

Adjusted mOR (95% CI)b

p-value

Age (years)

− 0.02

0.98

0.125

− 0.02

0.98 (0.95–1.01)

0.183

Marital status

 Married

 

1

  

1

 

 Single

0.52

1.68

0.057

0.31

1.37 (0.65–2.87)

0.410

 Divorced/widowed

0.68

1.97

0.101

0.64

1.89 (0.71–5.02)

0.200

Occupation

 Farmer

 

1

  

1

 

 Non-farmer

− 0.20

1.23

0.400

− 0.23

0.79 (0.39–1.60)

0.513

Educational status

 Illiterate

 

1

  

1

 

 Able to read and write (informal)

0.32

1.38

0.163

0.38

1.46 (0.87–2.44)

0.151

 Grade 1 to 12 completed

0.43

1.54

0.042

0.04

1.04 (0.62–1.73)

0.885

 >12

− 0.33

0.72

0.535

− 0.53

0.59 (0.15–2.30)

0.447

HH wealth index

 Poor

 

1

  

1

 

 Medium

0.48

1.62

0.197

0.36

1.43 (0.62–3.27)

0.400

 Rich

0.26

1.29

0.162

0.21

1.24 (0.82–1.88)

0.316

Roofing materials

 Corrugated iron

 

1

  

1

 

 Thatch

− 0.56

0.57

0.122

− 0.31

0.73 (0.32–1.68)

0.459

Flooring materials

 Cement and others

 

1

  

1

 

 Dung plastered

− 0.81

0.44

0.177

− 0.83

0.42 (0.11–1.78)

0.248

Travel to malarious lowlands

 No

 

1

  

1

 

 Yes

2.28

9.75

< 0.0001

1.99

7.32 (2.40–22.34)

< 0.0001

Travel history within the study area

 No

 

1

  

1

 

 Yes

0.45

1.56

0.026

− 0.03

0.97 (0.59–1.58)

0.900

HH member travel to malarious lowlands

 No

 

1

  

1

 

 Yes

1.35

3.86

0.001

1.01

2.75 (1.02–7.44)

0.046

Received health information on malaria

 No

 

1

  

1

 

 Yes

0.46

1.59

0.010

0.45

1.57 (1.03–2.41)

0.037

LLIN(s) ownership

 None

 

1

  

1

 

 1 LLIN/household

0.07

1.07

0.674

0.11

1.12 (0.66–1.90)

0.684

 ≥ 2 LLINs/household

0.63

1.87

0.021

0.59

1.81 (0.95–3.46)

0.071

HH elevation (m)

 1701–1900

 

1

  

1

 

 1901–2100

0.34

1.40

0.355

− 0.09

0.91 (0.36–2.31)

0.844

 > 2100

1.12

3.06

0.137

0.66

1.94 (0.30–12.49)

0.484

House proximity to health centre (km)

 ≤ 5

 

1

  

1

 

 > 5

− 0.34

0.71

0.069

− 0.27

0.76 (0.49–1.18)

0.226

House proximity to water body 1 (m)

 < 250

 

1

  

1

 

 250–500

− 0.52

0.59

0.204

− 0.18

0.84 (0.30–2.32)

0.734

 > 500

− 0.28

0.75

0.459

− 0.03

0.97 (0.38–2.47)

0.950

House proximity to water body 2 (m)

 < 250

 

1

  

1

 

 250–500

0.44

1.55

0.409

0.59

1.81 (0.50–6.57)

0.365

 > 500

0.14

1.15

0.740

0.39

1.48 (0.51–4.32)

0.475

House proximity to Lake Tana (km)

 < 2

 

1

  

1

 

 2–4

0.28

1.32

0.552

0.28

1.33 (0.46–3.81)

0.596

 > 4

0.29

1.33

0.399

0.37

1.45 (0.66–3.16)

0.353

  1. β: beta coefficients/regression coefficients. p < 0.05 was considered statistically significant. The italics indicate statistically significant p-values
  2. Unadjusted mOR: Unadjusted matched odds ratio; adjusted mOR: adjusted matched odds ratio; 1: Reference category
  3. aDenotes unadjusted mOR using 95% CI in bivariate conditional logistic regression analysis from matched case–control pairs
  4. bDenotes adjusted mOR using 95% CI in multivariable conditional logistic regression analysis from matched case–control pairs
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Malaria Journal

ISSN: 1475-2875

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