Table 2

Regression coefficients (with 95% confidence intervals (C.I.)) after arcsine square root transformation of survival proportions for the four different instars of An. gambiae s.s.. Model predictions of 50% and 0% survival are given in hours.

Model: arcsine (√ p) = a * time + b

Model predictions

instar

a

95 % C.I.

b

95 % C.I.

R²

50 % survival

(hours)

0 % survival

(hours)

L1

-0.024

-0.026 – -0.022

1.53

1.46 – 1.61

0.931

31

64

L2

-0.022

-0.024 – -0.019

1.43

1.34 – 1.52

0.895

29

65

L3

-0.022

-0.027 – -0.018

1.52

1.39 – 1.66

0.727

33

69

L4

-0.013

-0.015 – -0.011

1.47

1.38 – 1.56

0.748

53

113

Koenraadt et al. Malaria Journal 2003 2:20   doi:10.1186/1475-2875-2-20