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Table 5 Output from a logistic regression model with (a) presence versus absence of Culicine and (b) high versus low density of Culicine larvae as outcome, and ecological parameters as explanatory variable. The same variables as in tables 2 and 3 were included in the model, but only significant results are shown.

From: Habitat characterization and spatial distribution of Anopheles sp. mosquito larvae in Dar es Salaam (Tanzania) during an extended dry period

5a

     

Variable

 

Odds Ratio

95% Confidence Interval for OR

P-Value

Lower

Upper

General Surrounding

 

High density housing

1

   
 

Other

.646

.170

2.453

.520

 

Industry

.177

.041

.771

.021*

 

Fields

.692

.302

1.585

.384

Turbidity of water

 

Clear

1

   
 

Turbid

3.620

1.872

7.000

.000**

 

Very turbid

2.689

.981

7.369

.054

pH of water (Quartiles)

 

8.1–10.1

1

   
 

7.7–8.0

1.986

.845

4.669

.116

 

7.4–7.6

2.916

1.252

6.792

.013*

 

6.1–7.3

2.586

1.109

6.030

.028*

5b

     

Variable

 

Odds Ratio

95% Confidence Interval for OR

P-Value

   

Lower

Upper

 

Type of breeding site

 

Other

1

   
 

Large drain

4.207

.575

30.801

.157

 

Small drain

.836

.054

12.894

.898

 

Swamp

1.811

.507

6.467

.361

 

Puddle

2.797

.345

22.650

.335

 

Artificial hole

1.137

.288

4.486

.855

 

Concrete hole

.059

.005

.733

.028*

pH of water (Quartiles)

 

8.0–9.0

1

   
 

7.6–7.9

2.291

.748

7.014

.146

 

7.4–7.5

2.485

.707

8.740

.156

 

6.4–7.3

4.024

1.230

13.158

.021*

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Malaria Journal

ISSN: 1475-2875

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