Table 2.
Logistic regression analyses of association of socio‐demographics, dependence (SUTS) and non‐cigarette nicotine intake at follow‐up with substantial reduction in cigarettes per day (CPD).
| Reduction (n = 1042, of whom n = 65 reduced CPD by ≥50% of baseline) | |||||
|---|---|---|---|---|---|
| n(%) /mean (SD) | OR | 95% CI | P | ||
| Baseline agea | 46.7 (15.3) | 0.99 | 0.78 to 1.08 | 0.30 | |
| Gender | Female | 455 (43.7) | 1 | ||
| Male | 587 (56.3) | 0.51 | 0.30 to 0.86 | 0.012 | |
| Baseline level of education | No HE | 706 (67.8) | 1 | ||
| Some HE | 336 (32.3) | 0.90 | 0.52 to 1.57 | 0.71 | |
| Baseline SUTSb | 2.1 (1.1) | 0.76 | 0.59 to 0.98 | 0.031 | |
| Follow‐up NRT use | None | 909 (87.2) | 1 | ||
| Non‐daily | 83 (8.0) | 1.50 | 0.61 to 3.70 | 0.38 | |
| Daily | 50 (4.8) | 1.66 | 0.58 to 4.70 | 0.34 | |
| Follow‐up e‐cig use | None | 769 (73.8) | 1 | ||
| Non‐daily | 201 (19.3) | 0.85 | 0.43 to 1.71 | 0.66 | |
| Daily | 72 (6.9) | 2.49 | 1.14 to 5.45 | 0.022 | |
a
Mean and standard deviation (SD) presented, odds ratio (OR) for single year raised to the power of 10 to present per 10‐year increase.
b
Strengths of urges to smoke, possible range 0 ‘no urges’ to 5 ‘extremely strong urges’, mean and SD presented, OR per unit increase. HE = higher education NRT = nicotine replacement therapy.