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Table 2 Crude and Adjusted Incidence Risk Ratio of the Associations between maternal characteristics with Fertility in Butajira, 2009

From: Determinants of fertility in rural Ethiopia: the case of Butajira Demographic Surveillance System (DSS)

Characteristics Crude IRR (95%CI) Adjusted IRR (95% CI)
Age at first Marriage   
   20 and over 1.00 1.00
   15-19 1.33 (1.27, 1.39) 1.11 (1.01, 1.20)*
   Less than 15 1.83(1.75, 1.91) 1.38 (1.27, 1.49)*
Educational status   
   Secondary plus 1.00 1.00
   Primary 1.34 (1.24, 1.44)* 1.14 (1.02, 1.27)*
   Never 1.83 (1.70, 1.97)* 1.24 (1.10, 1.39)*
Ecology   
   Urban 1.00 1.00
   Rural Lowland 1.29 (1.25, 1.33)* 0.88 (0.79, 0.98)*
   Rural highland 1.33 (1.29, 1.38)* 0.92 (0.83, 1.03)
Household size   
Small (less or equal to 4) 1.00 1.00
Large (greater than 4) 2.08 (2.03, 2.15)* 1.95 (1.84, 2.06)*
Household livelihood   
   Farming 1.00 1.00
   Trade/Service 0.79 (0.77, 0.82)* 0.86 (0.78, 0.96)*
   Civil service 0.66 (0.62, 0.71)* 0.96 (0.83, 1.11)
   Other 0.67 (0.64, 0.71)* 0.90 (0.80, 1.01)
Food shortage   
   No 1.00 1.00
   Yes 1.16 (1.14, 1.19)* 1.06 (1.01, 1.13)*
Migration status   
   In migrant 1.00 1.00
   None-migrant 1.04 (1.02, 1.08)* 1.02 (0.97, 1.07)
Have a dead child   
   No 1.00 1.00
   Yes 1.90 (1.86, 1.95)* 1.67 (1.59, 1.76)*
Know correct pregnancy time   
   Yes 1.00 1.00
   No 1.35 (1,28, 1.41)* 1.09 (1.03, 1.15)*
Have sex preference   
   Yes 1.00 1.00
   No 1.14 (1.11, 1.17)* 1.09 (1.04, 1.15)*
  1. *Statistically significant at α = 5 percent