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Table 1 Multivariate Poisson regression final model in predicting in fant mor tality in northwest, Ethiopia, Nov.2009 to August 2011

From: Exclusive breast feeding is the strongest predictor of infant survival in Northwest Ethiopia: a longitudinal study

Descriptions Frequency (%) CIRR 95% confidence interval AIRR 95% confidence interval
  Deaths Survived   
Residential area     
Urban 11 (0.79) 1,387 (99.21) 1 1
Rural 119 (1.79) 6,701 (98.26) 2.23 (1.186 4.19) 2.33 ( 1.12 4.88)*
Maternal marital status     
Living in marriage 109 (1.41) 7,600 (98.59) 1 1
Single (never married, widowed & separated) 21 (4.13) 488 (95.87) 4.33 (2.47 7.60) 7.48 ( 4.26 13.17)*
Maternal education     
Illiterate 112 (1.87) 5,865 (98.13) 1.98 (0.89 4.37) 6.48 ( 2.71 15.52)*
Read & write/ primary 12 (1.05) 1,129 (98.95) 1.21(0.48 3.08) 1.38 (0.51 3.70)*
Secondary and above 6 (0.55) 1,094 (99.45) 1 1
Wealth index     
Lowest quintile 56 (2.04) 2,684 (97.96) 1.70 (1.10 2.65) 1.00 (0.59 1.52)
Medium quintile 41 (1.50) 2,699 (98.50) 1.26 (0.79 2.02) 0.84 (0.51 1.37)
Highest quintile 33 (1.21) 2,705 (98.79) 1 1
Roof     
Corrugated Iron sheet 49 (1.35) 3,570 (98.65) 1 1
Thatch or grass 81 (1.76) 4,518 (98.24) 1.65 (1.14 2.40) 2.12 ( 1.42 3.16)*
Window     
Yes 78 (1.34) 5,734 (98.66) 1 1
No 52 (2.16) 2,354 (97.84) 1.59 (1.10 2.28) 1.13 (0.78 1.63)
Hand washing with soap at critical points     
Yes 11 (0.73) 1,486 (99.27) 1 1
No 119 (1.77) 6,602 (98.23) 1.97 ( 0.98 3.99) 4.61 ( 2.24 9.48)*
Birth interval     
< 24 months 55 (2.38) 2,257 (97.62) 1.98 (1.38 2.85) 2.79 (1.88 4.15)*
>24 months 75 (1.27) 5,831 (98.73) 1 1
Ever use of contraceptive methods     
Yes 1 25 (1.20) 2,058 (98.80) 1
No 105 (1.71) 6,030 (98.29) 1.15 (0.70 1.87) 1.65 (1.02 2.66)*
A child given semi-solid as complementary food at six months     
Yes 32 (0.52) 6,126 (99.48) 1 1
No 98 (4.76) 1,962 (95.24) 5.16 (2.98 8.95) 14.59 ( 9.39 22.67)*
Exclusive Breast feeding     
Yes 29 (0.48) 5,976 (99.52) 1 1
No 101 (4.56) 2,112 (95.44) 10.37 (6.77 15.90) 7.86 ( 5.11 12.10)*
Time of initiation of breast milk     
Immediately 1- 24 hours 23 (0.58) 3,954 (99.42) 1 1
  44 (1.78) 2,431 (98.22) 2.98 (1.78 5.00) 2.96 (1.76 4.96)*
More than 24 hours 63 (3.57) 1,703 (96.43) 6.10 (3.69 10.06) 4.84 (2.94 7.99)*
  1. *= Showing significant variables.