Table 3 Prevalence (%) of smoking during pregnancy at first antenatal care visit and crude odds ratios (OR) with 95% confidence intervals (CIs) for each five-year period according to educational levels and country of origin from 1982-2001.
Other Nordic Countries | Other European Countries (Nordic countries excluded) | Non-Europeans Countries | ||||
|---|---|---|---|---|---|---|
% | OR (95% CI) | % | OR (95% CI) | % | OR (95% CI) | |
1982-1986 | ||||||
High level | 16.9 | 1.0 | 16.6 | 1.0 | 12.6 | 1.0 |
Middle level | 36.1 | 2.8 (2.5-3.1) | 27.8 | 1.9 (1.6-2.3) | 16.4 | 1.4 (1.1-1.8) |
Low level | 49.7 | 4.9 (4.4-5.4) | 36.9 | 2.9 (2.4-3.6) | 23.4 | 2.1 (1.6-2.8) |
1987-1991 | ||||||
High level | 14.0 | 1.0 | 13.8 | 1.0 | 7.5 | 1.0 |
Middle level | 33.9 | 3.2 (2.9-3.5) | 25.1 | 2.1 (1.8-2.4) | 13.4 | 1.9 (1.6-2.3) |
Low level | 51.4 | 6.5 (5.9-7.2) | 33.4 | 3.1 (2.7-3.7) | 13.2 | 2.0 (1.6-3.7) |
1992-1996 | ||||||
High level | 10.5 | 1.0 | 10.5 | 1.0 | 4.8 | 1.0 |
Middle level | 28.6 | 3.4 (3.0-3.8) | 19.1 | 2.0 (1.8-2.3) | 9.8 | 2.1 (1.8-2.5) |
Low level | 49.6 | 8.4 (7.4-9.4) | 25.4 | 2.9 (2.5-3.3) | 10.3 | 2.3 (1.9-2.7) |
1997-2001 | ||||||
High level | 5.6 | 1.0 | 7.8 | 1.0 | 2.5 | 1.0 |
Middle level | 20.6 | 4.4 (3.7-5.2) | 17.6 | 2.5 (2.2-2.8) | 5.9 | 2.5 (2.1-2.9) |
Low level | 44.4 | 13.4 (11.2-16.2) | 25.2 | 4.0 (3.5-4.5) | 8.1 | 3.4 (3.0-4.0) |