Table 4.

Adjusted odds of changing smoking status for low-rate smokers

	≤5 CPD (436 smokers, 532 transitions)		6–10 CPD (421 smokers, 499 transitions)
	Quit	Increase	Reduce or quit	Increase
	AOR (95% CI)	AOR (95% CI)	AOR (95% CI)	AOR (95% CI)
Demographics/SES
Female	1.39 (0.83–2.32)	0.73 (0.43–1.24)	1.55 (0.84–2.87)	0.55 (0.32–0.96)*
Age >30 years	0.95 (0.55–1.65)	1.19 (0.66–2.16)	0.69 (0.38–1.27)	1.60 (0.89–2.86)
White	0.94 (0.44–2.04)	3.06 (1.38–6.80)**	0.28 (0.14–0.56)***	1.34 (0.69–2.60)
Married	1.03 (0.90–1.18)	0.99 (0.85–1.16)	0.99 (0.85–1.15)	1.04 (0.90–1.21)
Education ≤ high school	0.83 (0.47–1.45)	1.31 (0.75–2.28)	0.75 (0.41–1.40)	1.08 (0.65–1.82)
Income >$20,000	1.08 (0.43–2.73)	1.66 (0.72–3.83)	2.93 (0.95–9.09)	1.18 (0.48–2.90)
Income unknown	1.68 (0.49–5.81)	1.52 (0.50–4.63)	2.43 (0.52–11.35)	0.74 (0.22–2.44)
Smoking characteristics
Daily smoker	1.02 (0.58–1.81)	2.04 (1.15–3.61)*	0.38 (0.18–0.81)*	1.68 (0.70–3.99)
Began smoking ≤16 years old	1.02 (0.63–1.64)	1.01 (0.60–1.70)	1.07 (0.60–1.88)	1.33 (0.81–2.19)
First cigarette within 30 min of waking	0.50 (0.22–1.13)	3.35 (1.51–7.43)**	0.32 (0.16–0.64)***	1.43 (0.85–2.39)
Smokes mostly with friends	1.13 (0.67–1.90)	0.55 (0.31–0.98)*	1.07 (0.52–2.19)	0.65 (0.34–1.25)
Cessation history and intentions
Sure can quit for ≥30 days	1.35 (0.77–2.36)	0.72 (0.42–1.21)	0.95 (0.53–1.71)	0.50 (0.29–0.88)*
Made a 24-hr quit attempt in past year	0.97 (0.54–1.74)	0.97 (0.58–1.62)	2.07 (1.14–3.74)*	1.06 (0.62–1.81)
Plans to quit in next 30 days	1.78 (1.02–3.14)*	0.88 (0.51–1.50)	1.22 (0.65–2.28)	1.34 (0.76–2.36)
Social environment
More than half of friends smoke	0.85 (0.49–1.49)	1.88 (1.08–3.28)*	1.26 (0.68–2.35)	1.26 (0.76–2.07)
Household smoking ban	1.74 (1.02–2.95)*	0.79 (0.45–1.37)	1.03 (0.58–1.83)	0.76 (0.47–1.24)
Workplace smoking ban	0.83 (0.52–1.31)	0.77 (0.46–1.28)	1.10 (0.63–1.93)	0.73 (0.41–1.29)

Note. AOR, adjusted odds ratio; CPD, cigarettes per day; and SES, socioeconomic status.

^*p < .05;

^**p < .01;

^***p < .001.