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. 2017 May 30;17(Suppl 1):450. doi: 10.1186/s12889-017-4293-9

Table 4.

Pupal productivity and other features of different water containers

Container type N Inside the house (%) Containing temephos (<2 months old)(%) Covered(%) Used for drinking and cooking water (%) Container index (%) Pupal productivity
Concrete tanks 9358 19.0 40.4 8.2 1.8 8.0 N = 4216
mean = 0.451
SD = 5.263
50.7%
Barrels/drums 16,717 23.6 17.7 35.0 12.2 4.4 N = 1902
mean = 0.114
SD = 1.987
22.9%
Plastic tanks 3369 5.1 33.3 85 4.0 1.9 N = 107
mean = 0.032
SD = 0.536
1.3%
Plastic bottles 1557 68.9 1.2 81.4 70.5 0.7 N = 11
mean = 0.007
SD = 0.154
0.1%
Buckets 8729 27.0 5.1 25 10.0 2.5 N = 472
mean = 0.054
SD = 1.181
5.6%
Other water storage containers 4601 18.2 7.0 9.3 9.9 4.6 N = 882
mean = 0.19
SD = 2.52
10.6%
Discarded articles 618 9.0 24.4 N/A N/A 9.8 N = 171
mean = 0.277
SD = 2.94
2.0%
Plant- and flowerpots 204 38.4 5.1 N/A N/A 14.0 N = 88
mean = 0.431
SD = 2.507
1.06%
Tyres 213 32.3 2.1 N/A N/A 7.2 N = 463
mean = 2.17
SD = 14.14
5.6%
All containers 45,366 23.0 19.5 4.7 N = 8312
mean = 0.183
SD = 3.001

Pupa productivity: N = total number of pupas for all containers of that type; mean = mean number of pupae per container; SD = standard deviation of mean; percentage = (total number of pupae from that container type/overall total number of pupae) × 100