Skip to main content

Table 4 Number of foreign-born smokers (n) during pregnancy and their proportion (%) in each educational level stratum, adjusted Odds Ratios (aOR)* and 95% Confidence Interval (CI) for smoking in those strata, and Attributable Fraction (AF), Stratum-specific Total Attributable Fraction (sTAF), and overall Total Attributable Fraction (TAF) for each five-year period.

From: Are time-trends of smoking among pregnant immigrant women in Sweden determined by cultural or socioeconomic factors?

Educational levels n % aOR* (95% CI) AF sTAF TAF
1982-1986       
High educational level 823 11.4 1.0 0 (Ref)   
Middle educational level 3461 47.9 2.2 (2.0-2.4) 0.55 0.26  
Low educational level 2944 40.7 3.6 (3.3-3.9) 0.72 0.29  
TAF, all levels of education       0.55
1987-1991       
High educational level 1044 10.4 1.0 0 (Ref)   
Middle educational level 5076 50.6 2.6 (2.4-2.8) 0.62 0.31  
Low educational level 3905 39.0 4.3 (3.9-4.7) 0.77 0.30  
TAF, all levels of education       0.61
1992-1996       
High educational level 1019 12.2 1.0 0 (Ref)   
Middle educational level 4269 51.2 2.5 (2.3-2.7) 0.60 0.31  
Low educational level 3052 36.6 4.1 (3.8-4.5) 0.76 0.28  
TAF, all levels of education       0.59
1997-2001       
High educational level 797 12.7 1.0 0 (Ref)   
Middle educational level 2889 46.1 2.8 (2.6-3.1) 0.64 0.29  
Low educational level 2587 42.2 4.8 (4.4-5.3) 0.79 0.33  
TAF, all levels of education       0.62
Total smokers 1982-2001 31866      
  1. * adjusted for age and marital status.
  2. (n = 31866)