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Table 1.

Demographic and smoking characteristics of mother-infant dyads

Characteristic% (n)Mean ± SD
Male infant 50.1 (73)  
Infant age (mo)  6.6 ± 1.9 
Mother age (y)  25.7 ± 5.7 
Ethnicity of mother   
    White 71.5 (103)  
    Black 13.2 (19)  
    Asian 2.1 (3)  
    Hispanic 2.1 (3)  
    Other 11.1 (16)  
Education of mother   
    High school or less 55.2 (79)  
    Vocational school 12.6 (18)  
    Some college 28.0 (40)  
    College degree 4.2 (6)  
Cigarettes/wk (mother)  98.2 ± 58.9 
Other smokers in household  1.1 ± 1.0 
Characteristic% (n)Mean ± SD
Male infant 50.1 (73)  
Infant age (mo)  6.6 ± 1.9 
Mother age (y)  25.7 ± 5.7 
Ethnicity of mother   
    White 71.5 (103)  
    Black 13.2 (19)  
    Asian 2.1 (3)  
    Hispanic 2.1 (3)  
    Other 11.1 (16)  
Education of mother   
    High school or less 55.2 (79)  
    Vocational school 12.6 (18)  
    Some college 28.0 (40)  
    College degree 4.2 (6)  
Cigarettes/wk (mother)  98.2 ± 58.9 
Other smokers in household  1.1 ± 1.0 
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