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Table 4 Parameter estimates for a negative binomial model explaining post intervention heterogeneities in sand fly abundance across the households

From: Leishmaniasis sand fly vector density reduction is less marked in destitute housing after insecticide thermal fogging

Parameter

Proportional abundance change

Estimate

S.E.

z

Pr(>|z|)

Abundance

1 (90) ¶

4.501

0.159

28.354

<0.00001x

HP > 0.586

116

4.748

1.060

4.481

<0.00001x

  1. xStatistically Significant (P < 0.05). ¶the value inside parenthesis is the estimated post intervention abundance.
  2. Overdispersion parameter for the model was (± S.E.) 2.01 ± 0.55. The breakpoint for the Housing Destituteness Index (HP) was fixed at 0.586 and was estimated by a Brent optimization of the model Akaike Information Criterion.