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Table 2 Multivariable analysis on factors that might affect the good physical condition (proportionate Hole Index ≤64) of Olyset campaign nets distributed 2–4 years earlier in Tanzania

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

Explanatory variables Odds ratio Likelihood of net being in good physical condition (pHI ≤64)
  95 % CI P value Overall P value (likelihood ratio test)
Socioeconomic status of households
 Least wealthy (1) 1.0    0.88
 (2) 0.9 0.4–2.7 0.98
 (3) 0.7 0.3–2.1 0.59
 (4) 1.1 0.4–3.2 0.89
 Wealthiest (5) 1.3 0.5–3.5 0.65
Net age (months)
 ≤25 1.0    0.09
 26–36 1.9 0.8–4.2 0.13
 37–48 1.0 0.4–3.1 0.95
 >48 0.6 0.1–2.1 0.39
Presence of rat faeces/rats in household
 No 1.0    0.04
 Yes 0.4 0.1–1.0 0.05
Type of sleeping space
 Reed mat 1.0    0.78
 Mattress, no frame 0.6 0.1–3.2 0.54
 Bedframe made from sticks 0.7 0.2–2.7 0.56
 Wooden and iron bedframe 0.6 0.2–1.9 0.32
Number of persons per net
 1 user 1.0    0.44
 2 users 0.7 0.3–1.4 0.39
 3 users 0.6 0.2–1.7 0.41
 4 users 3.2 0.3–33.9 0.33
  1. Italic values indicate significance of p value (p < 0.05)