Table 3

Presumptive positive samples grouped by composite number of drums represented by the water sample tested.

No. of drums

No. of presumptive positives

No. of samples

Total No. of drums

Presumptive positives per drum (%)


1

10

1805

1805

0.554

2

4

259

518

0.772

3

4

558

1674

0.239

4

2

354

1416

0.141

5

2

69

345

0.580

6

0

63

378

0.000

7

2

34

238

0.840

8–19

0

49

465

0.000

Overall

24

3191

6839

0.351


Fahey et al. Nutrition Journal 2006 5:13   doi:10.1186/1475-2891-5-13

Open Data