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Table 2 Household characteristics comparing negative and positive secondary households enrolled January 2015–July 2017

From: Improving the efficiency of reactive case detection for malaria elimination in southern Zambia: a cross-sectional study

Secondary household type

Negative

Positive

p-value†

N

486

45

 

Average age per household, median (IQR)

17.8 (13.7, 25.4)

15.9 (13.1, 20.7)

0.16

Individuals per household, median (IQR)

5.0 (3.0, 7.0)

7.0 (5.0, 8.0)

< 0.001

Individuals 5 years and younger per household, median (IQR)

1.0 (0.0, 2.0)

2.0 (1.0, 3.0)

0.003

Number of parasitaemic individuals (RDT & qPCR)

  

< 0.001

 0

486 (100.0%)

0 (0.0%)

 1

0 (0.0%)

35 (77.8%)

 2

0 (0.0%)

9 (20.0%)

 3

0 (0.0%)

1 (2.2%)

Insecticide-treated bed net ownership

  

0.42

 No bed nets

78 (16.3%)

10 (22.2%)

 One or more bed nets

394 (82.1%)

35 (77.8%)

 Do not know

8 (1.7%)

0 (0.0%)

Household floor material

  

0.78

 Natural (earth, mud, dung)

355 (74.1%)

35 (77.8%)

 Rudimentary (wood, planks)

3 (0.6%)

0 (0.0%)

 Finished flooring (parquet, tiles, brick, ceramic, concrete, carpet)

121 (25.3%)

10 (22.2%)

Cooking energy source

  

0.34

 Coal/charcoal

195 (40.6%)

15 (33.3%)

 Wood

285 (59.4%)

30 (66.7%)

  1. †Chi square test for proportions and Wilcoxon rank-sum for means