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Table 2 Socio demographic information of asthma cases and healthy controls

From: Genetic, familial and environmental correlates of asthma among early adolescents in Sri Lanka: a case control study

Variable Case (N = 145) Control (N = 285) Unadjusted OR (95% CI)
  No % No %  
Sex      
Male 92 63.4 155 54.4 0.6 (0.4-1.0)
$Female 53 36.6 130 45.6  
Number of children      
One child 23 15.9 17 6.0 2.9* (1.5-5.7)
$More than one child 122 84.1 268 94.0  
Birth order      
First born 85 58.6 126 44.2 1.7* (1.1-2.6)
$Later born 60 41.3 159 55.7  
Mother’s educational level      
Up to secondary level 75 51.7 140 49.1 1.1 (0.7-1.6)
)$Above secondary 69 47.5 143 50.1  
Don’t know 1 0.6 2 0.7  
  1. *significant at p < 0.05 level (2 tailed) $-reference category.