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Table 4 Estimated effect of bednet measures on mortality of children without nets, adjusted by sex, socioeconomic status and distance to the nearest health facility, obtained by fitting negative binomial models

From: Spatial effects of mosquito bednets on child mortality

Bednet density Incidence risk ratio P-valuea
  No bednet 0 – 0.2 0.2 – 0.3 > 0.3  
R 50 1.0 0.88 (0.42,1.83) 0.70 (0.31,1.60) 0.89 (0.42,1.71) 0.935
R 100 1.0 0.64 (0.29,1.42) 1.04 (0.51,2.10) 1.15 (0.57,2.34) 0.519
R 150 1.0 0.82 (0.34,1.98) 0.91 (0.38,2.17) 2.06 (0.91,4.64) 0.077
R 200 1.0 0.74 (0.30,1.79) 0.68 (0.28,1.63) 1.35 (0.57,3.20) 0.303
R 300 1.0 1.18 (0.33,4.16) 1.64 (0.48,5.62) 1.40 (0.38,5.08) 0.713
R 400 1.0 1.40 (0.31,6.28) 1.90 (0.44,8.24) 1.49 (0.32,7.00) 0.809
R 500 1.0 1.97 (0.26,15.15) 2.31 (0.31,17.38) 1.80 (0.22,14.54) 0.732
R 600 1.0 1.22 (0.16,9.33) 1.63 (0.22,12.03) 1.14 (0.14,9.06) 0.811
  1. a: P-value based on likelihood ratio test (LRT).