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Table 2 Multivariate analysis of risk factors associated with Birth defects (n=66,123)

From: Burden and consequence of birth defects in Nepal-evidence from prospective cohort study

  aOR (95% C.I.) p-value
Age of mother
 20-< 35 years Reference  
 < 20 years 1.64 (1.18–2.28) 0.003
 > 35 years 0.94 (0.57–1.54) 0.79
Ethnicity
 Brahmin/Chhetri (relatively advantaged group) Reference  
 Others (relatively disadvantaged group) 1.78 (1.46–2.18) < 0.001
Type of fuel
 Clean   
 Polluted 2.26 (1.80–2.84) < 0.001
Sex of the baby
 Boy Reference  
 Girl 1.35 (1.13–1.61) 0.001
Parity
 Nullipara Reference  
 Primipara 1.58 (1.26–1.98) < 0.001
 Multipara 2.33 (1.84–2.95) < 0.001
Multiple delivery
 No Reference  
 Yes 1.80 (0.98–3.28) 0.06
Constant 0.002 < 0.001
  1. aOR adjusted Odds Ratio