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Table 3 Descriptive statistics of total hole counts and total hole area as measured using WHOPES guidelines, ruler measurements, and image analysis

From: Assessing bed net damage: comparisons of three measurement methods for estimating the size, shape, and distribution of holes on bed nets

Statistic

Total hole counts

Total area (cm2)

WHOPES

Image

Ruler

WHOPES

Image

Ruler

Minimum

25

21

27

63

10

21

1st quartile

26

24

37

379

70

111

Median

34

34.5

41

2457

576

629

Mean

47

44

60

3486

797

1127

3rd quartile

54

58

72

4380

1470

1815

Maximum

114

110

142

12,839

1919

4301

Sum

468

444

602

34,862

7965

11,269

  1. Restricted to holes with diameters ≥ 0.5 cm. The World Health Organization Pesticide Evaluation Scheme. n = 10 LLINs