Table 2. Prevalence of Recent Successful Cessation^a Among Adult Cigarette Smokers, by Correlates, Tobacco Use Supplement to the Current Population Survey, United States, 2018.

Correlate	Recent Successful Smoking Cessation, % (95% CI)	P Valueb
Advised to quit by medical doctor in past year
Yes	4.9 (4.0–6.0)	.04
No	3.2 (2.1–5.0)
Smoke-free rule in home
Yes	9.8 (8.8–10.9)	<.001
No	2.4 (1.7–3.3)
Comprehensive smoke-free workplace policyc
Yes	8.2 (6.7–10.0)	.33
No	10.2 (7.2–14.3)
Cessation method used in past year
NRT onlyd	10.4 (7.0–15.1)	.10
Non-nicotine pharmacotherapy onlye	13.6 (7.8–22.6)
Counseling onlyf	––g
NRT/pharmacotherapy and counseling only	––g
Switch to other tobacco products only, excluding e-cigarettesh	––g
Switch to e-cigarettes onlyi	12.7 (9.1–17.6)
None of the above	15.1 (13.1–17.4)

Abbreviation: NRT, nicotine replacement therapy.

^a Recent successful smoking cessation was defined as quitting smoking within the past year for ≥6 months among current cigarette smokers who smoked for ≥2 years and among former smokers who quit during the past year.

^b Determined by using χ² test; significance set at P < .05. Data were weighted to account for the complex survey design.

^c Comprehensive smoke-free workplace policy was defined as a policy under which smoking was not allowed in any indoor public or common area or any indoor work areas.

^d Includes respondents who indicated only using the following when they tried to quit smoking in the past year: a nicotine patch, gum, lozenge, nasal spray, or inhaler.

^e Includes respondents who indicated using only the following when they tried to quit smoking in the past year: a prescription pill called Chantix, Varenicline, Zyban, Bupropion, or Wellbutrin.

^f Includes respondents who indicated using only the following when they tried to quit smoking cigarettes in the past year: a telephone help line or quit line; one-on-one in-person counseling by a health professional; a stop-smoking clinic, class, or support group; an internet or web-based program or tool, including smartphone apps and text-messaging programs.

^g Estimate not presented because relative standard error is >30%.

^h Includes respondents who indicated that they tried to quit smoking cigarettes by switching to smokeless tobacco such as chewing tobacco, snuff, or snus; regular cigars, cigarillos, or little filtered cigars; or any pipes filled with tobacco. Those who reported switching to e-cigarettes were excluded.

ⁱ Includes respondents who indicated that they tried to quit smoking cigarettes by switching to e-cigarettes but not any other tobacco products.