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Table 4 Multivariable logistic regression analysis of the bio-efficacy and permethrin content of sampled Olyset campaign nets

From: Durability of Olyset campaign nets distributed between 2009 and 2011 in eight districts of Tanzania

Explanatory variables Pass cone assay criteria Above 15 g/kg permethrin
Odds ratio 95 % CI P value Odds ratio 95 % CI P value
Net age (in months since initial distribution)
 Old nets (>25) 1    1.0   
 Newer Nets (≤25) 0.9 0.5–1.9 0.9 2.1 0.8–5.3 0.11
Physical condition of net
 Net in unserviceable condition 1    1.0   
 Net in serviceable condition 2.4 1.3–4.4 0.04 4.1 2.0–8.5 0.001
  1. Italic values indicate significance of p value (p < 0.05)