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Table 3 Bioassay data with Anopheles gambiae s.s (Kisumu strain). Three minute exposure using the cone test. GM = geometric mean, CI = confidence interval.

From: Long-term field performance of a polyester-based long-lasting insecticidal mosquito net in rural Uganda

A

Average net functional mortality in % at different times of follow-up

Type of net

Baseline (n) GM 95% CI

6 Months (n) GM 95% CI

12 Months (n) GM 95% CI

18/20 Months (n) GM 95% CI

24/27 Months (n) GM 95% CI

36/39 Months (n) GM 95% CI

PermaNet 1st generation

(10) 96.9

95.3 – 98.6

(40) 18.1

13.5 – 24.2

(40) 15.1

9.8 – 23.3

(40) 8.9

5.6 – 14.1

(40) 21.1

14.5 – 30.5

(38) 9.7

5.3 – 17.9

PermaNet 2nd generation

(10) 99.8

99.3 – 100

(40) 99.5

99.2 – 99.9

(40) 95.2

89.2 – 100

(40) 96.0

93.5 – 98.6

(38) 73.9

61.7 – 88.6

(40) 88.5

83.7 – 93.7

Conventional net

(10) 99.2

97.5 – 100

(40) 8.5

5.9 – 12.2

Not done

Not done

Not done

Not done

Conventional net retreated

(13) 99.4

98.7 – 100

(34) 40.8

27.6 -60.4

(11) 44.8

21.6 – 92.9

Not done

Not done

Not done

B

Average net knockdown rate within 60 minutes in % at different times of follow-up

Type of net

Baseline (n) GM 95% CI

6 Months (n) GM 95% CI

12 Months (n) GM 95% CI

18/20 Months (n) GM 95% CI

24/27 Months (n) GM 95% CI

36/39 Months (n) GM 95% CI

PermaNet 1st generation

(10) 100

100 – 100

(40) 69.9

62.9 – 77.7

(40) 59.3

42.2 – 77.8

(40) 23.6

14.9 – 37.4

(40) 70.3

57.0 – 86.7

(38) 37.4

24.3 – 57.5

PermaNet 2nd generation

(10) 100

100 – 100

(40) 99.8

99.5 – 100

(40) 99.0

97.9 – 100

(40) 97.6

96.0 – 99.3

(38) 92.4

85.8 – 99.5

(40) 97.8

96.6 – 99.0

Conventional net

(10) 100

100 – 100

(40) 31.6

24.9 – 41.0

Not done

Not done

Not done

Not done

Conventional net retreated

(13) 99.8

99.4 – 100

(34) 76.9

62.8 -94.2

(11) 59.5

29.0 – 100

Not done

Not done

Not done