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Table 1 Generalized estimating equations (GEE) analysis of the effect of larviciding on the density of immature mosquitoes, showing the probabilty of the factors

From: Efficacy and persistence of long-lasting microbial larvicides against malaria vectors in western Kenya highlands

Species

Immature stage or time

Comparing intervention versus control

Intervention stagea

Interventionb

Intervention stage × intervention

An. gambiae (s.l.)

1st- and 2nd-instar larvae

0.011

0.002

0.001

3rd- and 4th-instar larvae

0.009

<0.001

<0.001

Pupae

0.952

0.084

0.011

An. funestus (s.l.)

1st- and 2nd-instar larvae

0.895

0.068

0.008

3rd- and 4th-instar larvae

<0.001

<0.001

<0.001

Pupae

0.313

0.890

0.050

Other mosquito species

1st- and 2nd-instar larvae

<0.001

0.002

<0.001

3rd- and 4th-instar larvae

<0.001

<0.001

<0.001

Pupae

0.774

0.177

0.001

Total Anopheles spp.

By week 12

0.016

<0.001

<0.001

By week 16

0.197

<0.001

<0.001

By week 20

<0.001

0.037

<0.001

  1. This analysis compared larviciding against control. Data from the two larvicides were pooled
  2. aIntervention stage was classified as pre-intervention versus post-intervention
  3. bIntervention was classified as larviciding intervention versus no-larviciding control