Participants randomly received an e-cigarette that delivered 36, 8 or 0 mg/mL of nicotine, or a cigarette substitute that contained no tobacco, as an aid in their efforts to reduce their cigarette consumption
The collected data included important details of the study, such as authors, year of publication, journal name, study title, country of origin, study design, data sources, study duration, total sample size, subject characteristics (such as age and gender), the definition of e-cigarettes usage (current/former use), the definition of the control group (never smoker), the effect size and corresponding 95% confidence interval (95% CI), the diagnostic criteria for COPD (self-report/pulmonary function tests/EHRs), and the way of obtaining smoking history (self-report/urine nicotine test)
Shields of Georgetown School of Medicine in Washington, D.C
Our finding that increases in cigarette prices were associated with quitting smoking in the older population suggests that cigarette taxes may be a particularly effective lever for behavior change. Taking a look at the local relationship between smoking habits and cigarette prices is an understudied but important area to look at, according to the senior author on the study, Amy Auchincloss, PhD, associate professor in the Dornsife School of Public Health