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.
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 |