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Table 2 Parameter estimates from the model fitted to the full database (analysis A1)

From: Incidence and consequences of damage to insecticide-treated mosquito nets in Kenya

Symbol

Explanation

Units

Estimate (95% credible interval)

\({\mathbf{h}}_{1}\)

Acquisition of holes in unused nets

Yeara

1.18 (0.98, 1.42)

\({\mathbf{h}}_{3}\)

Acquisition of holes in nets in use

Yeara

0.87 (0.76, 0.98)

\({\mathbf{u}}_{1}\)

Putting undamaged nets to use

Yeara

1.67 (1.40, 2.01)

\({\mathbf{u}}_{2}\)

Putting damaged nets to use

Yeara

1.30 (1.13, 1.47)

\({\mathbf{v}}_{3}\)

Taking undamaged nets out of use

Yeara

2.77 (2.45, 3.22)

\({\mathbf{v}}_{4}\)

Taking damaged nets out of use

Yeara

0.44 (0.39, 0.51)

\({\mathbf{a}}_{1}\)

Attrition of undamaged, unused nets

Yeara

0.04 (0.01, 0.09)

\({\mathbf{a}}_{2}\)

Attrition of damaged, unused nets

Yeara

0.37 (0.29, 0.47)

\({\mathbf{a}}_{3}\)

Attrition of undamaged, used nets

Yeara

0.26 (0.20, 0.33)

\({\mathbf{a}}_{4}\)

Attrition of damaged, used nets

Yeara

0.26 (0.23, 0.30)

\({\mathbf{P}}_{\mathbf{o}}\)

Proportion of nets at follow-up for which physical integrity was evaluated

Probability

0.60 (0.59, 0.61)

\({\mathbf{U}}_{\mathbf{N}}\)

Probability a new net is taken into use immediately on receipt

Probability

0.00 (fixed)

\({\mathbf{U}}_{\mathbf{H}}\)

Probability a damaged net was used the night before survey (if nets is ‘in use’)a

Probability

0.94

\({\mathbf{U}}_{\mathbf{I}}\)

Probability an undamaged net was used the night before survey (if net is ‘in use’)a

Probability

0.88

  1. Note that a rate, \(\mathrm{h}\) gives rise to a probability \(1-\mathrm{ exp}(-\mathrm{ht}\)) that the event occurs in \(\mathrm{t}\) years, ignoring competing events
  2. aThese proportions obtained directly from the survey data