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Table 1 Inclusion and exclusion criteria

From: Reduced nicotine content cigarettes in smokers of low socioeconomic status: study protocol for a randomized control trial

Inclusions:

 

Age

18–65

Education

<16 years or < Bachelor’s degree

Cigarette frequency

≥5 cigarettes per day

Cigarette history

Continuously for at least the last 12 months

Cigarette flavor

Willing to smoke one flavor of cigarette (menthol or non-menthol)

Comprehension

Able to read and write in English and to understand and consent to study procedures

Smoking cessation

Made no serious quit attempt with/without pharmacotherapy in the prior 1 month and have no plans to quit in the next 6 months

Availability

Accessibility to study centers and to receive phone calls for the next 8 months

Exclusions:

Current pregnancy or nursing, unstable or serious medical conditions, prisoners or subject to correctional supervision, systolic blood pressure ≥160 mmHg, use of non-cigarette nicotine delivery product in the past week, difficulty providing blood samples, regular use of illegal drugs, inpatient treatment for substance abuse or mental health condition in past 6 months, alcohol abuse hindering person’s ability to participate, other members of the household currently participating in a trial related to reduced nicotine cigarettes, major surgery planned in the next 8 months (not including outpatient), or any other factor that may affect adherence or pose a health risk to the participant