Table 3 Variables related to smoking cessation during pregnancy (based on 725 women smoking at the beginning of pregnancy).
From: Smoking among pregnant women in Cantabria (Spain): trend and determinants of smoking cessation
Variables | Total | Smoking cessation | ||
|---|---|---|---|---|
N | n (%) | RR (95% CI) | ||
Age (years) | ≥31 | 285 | 75 (26.3) | 1.00 (0.72–1.38) |
26–30 | 281 | 75 (26.7) | 1.01 (0.73–1.40) | |
< 26 | 159 | 42 (26.4) | 1 (reference) | |
High school education or higher | Yes | 297 | 100 (33.7) | 1.57 (1.23–1.99) |
No | 428 | 92 (21.5) | 1 (reference) | |
Social class | I-II | 65 | 20 (30.8) | 1.18 (0.80–1.74) |
III-IV | 660 | 172 (26.1) | 1 (reference) | |
Race | Non-white | 18 | 3 (16.7) | 0.62 (0.22–1.76) |
White | 707 | 189 (26.7) | 1 (reference) | |
Marital status: married | Yes | 638 | 181 (28.4) | 2.24 (1.27–3.95) |
No | 87 | 11 (12.6) | 1 (reference) | |
No. of previous pregnancies | > 1 | 135 | 28 (20.7) | 0.67 (0.46–0.97) |
1 | 260 | 62 (23.8) | 0.77 (0.59–1.01) | |
0 | 330 | 102 (30.9) | 1 (reference) | |
Employment outside home | Yes | 351 | 91 (25.9) | 0.96 (0.75–1.22) |
No | 374 | 101 (27.0) | 1 (reference) | |
Cig/d smoked before pregnancy | > 20 | 73 | 4 (5.5) | 0.12 (0.05–0.31) |
11–20 | 347 | 47 (13.5) | 0.29 (0.22–0.39) | |
< 11 | 303 | 141 (46.5) | 1 (reference) | |
Partner's smoking | Yes | 508 | 110 (21.7) | 0.57 (0.44–0.72) |
No | 217 | 82 (37.8) | 1 (reference) | |
Change in alcohol consumption during pregnancy | Quit/reduce | 321 | 90 (28.0) | 1.07 (0.83–1.38) |
Equal | 80 | 17 (21.3) | 0.81 (0.51–1.28) | |
Do not drink | 324 | 85 (26.2) | 1 (reference) | |
Year of the study period | > 1999 | 380 | 76 (20.0) | 0.52 (0.40–0.69) |
1999 | 174 | 51 (29.3) | 0.77 (0.57–1.04) | |
1998 | 171 | 65 (38.0) | 1 (reference) | |
Kessner index | Adequate | 262 | 93 (35.5) | 1.82 (1.12–2.95) |
Intermediate | 386 | 84 (21.8) | 1.12 (0.68–1.83) | |
Inadequate | 77 | 15 (19.5) | 1 (reference) | |