Bethany Shorey Fennell

In-clinic Versus Online Recruitment of Women With a History of Cervical Intraepithelial Neoplasia or Cervical Cancer to a Smoking Cessation Trial: A Post hoc Comparison of Participant Characteristics, Study Retention, and Cessation Outcomes

Abstract Introduction Recruiting special populations to smoking cessation trials is challenging and approaches beyond in-clinic recruitment may be beneficial. This secondary analysis of data from a smoking cessation RCT for individuals with a history of cervical cancer or cervical intraepithelial neoplasia (CIN) explored differences associated with in-clinic vs. online recruitment. Aims and Methods Participants were recruited from clinics within a university-based NCI-designated cancer center (n = 87) and online nationally via Facebook (n = 115). Baseline measures included sociodemographics, smoking history, and cancer or CIN history. Study retention and smoking abstinence were assessed 12 months post-baseline. Group differences in baseline characteristics were evaluated. Retention and abstinence were evaluated while controlling for group differences and predictors. Results Participants recruited online (vs. in-clinic) had higher educational attainment (p = .01) and health literacy (p = .003). They were more likely to have CIN versus cancer, to be further from the time of diagnosis, and to have completed active treatment (p values < .001). While controlling for these group differences and independent predictors, retention was higher among participants recruited online (log-likelihood χ2(1) = 11.41, p < .001). There were no recruitment differences in self-reported (p = .90) or biochemically confirmed smoking abstinence (p = .18). Conclusions Compared to individuals recruited in-person, individuals recruited online were more educated, had higher health literacy, and presented with a different clinical profile (ie, more likely to have CIN vs. cancer and to have completed active treatment). There were few differences in participant characteristics between recruitment approaches, and no differences on any smoking-related variables. Online recruitment has the potential to improve enrollment of cancer survivors in smoking cessation trials. Implications People with a history of CIN or cervical cancer recruited to a smoking cessation RCT online (vs. in-clinic) were more likely to have a diagnosis of CIN versus cancer and were more educated and health literate. Participants recruited online were more likely to be retained in the study and there were no differences in smoking abstinence rates at 12 months. Incorporating online recruitment increased the reach of tobacco treatment efforts to a larger and more diverse sample. This could reduce the burden of tobacco-related disease, improve CIN and cancer treatment outcomes, and reduce secondary malignancies and morbidity among this underserved group.

Smoking Cessation by Cancer Treatment Status Among Cervical Cancer Survivors

Continued smoking following a cancer diagnosis is associated with poorer cancer treatment outcomes and survival times. Little is known about how cancer treatment status at the time of tobacco treatment enrollment impacts long-term smoking cessation outcomes. Using data from a smoking cessation RCT, this study compared long-term cessation outcomes of women undergoing active treatment for cervical cancer at trial enrollment (n=40) to outcomes of women with a history of cervical cancer or cervical intraepithelial neoplasia (CIN) who were not undergoing active cancer treatment at enrollment (n=154). Participants (n=194) were randomized to Standard Treatment (ST) or ST plus a 6-session Motivation And Problem Solving (MAPS) telephone counseling protocol (data collected: 2017-2021; analyzed: 2023). Sociodemographic differences between participants undergoing (versus not undergoing) active cancer treatment at enrollment were examined. Significant covariates were included in a logistic regression analysis comparing the 2 groups' smoking cessation outcomes at 12 months, the end of the tobacco treatment period. Participants in active cancer treatment at enrollment were significantly younger and less educated than those not in active cancer treatment. Race/ethnicity, relationship status, household income, nicotine dependence, and tobacco treatment condition did not vary by cancer treatment status. After adjusting for tobacco treatment condition, age, and education, being in active cancer treatment at the time of enrollment was associated with lower odds of abstinence at 12 months (5% vs 20%, aOR=0.22, 95% CI [0.05-0.998]). Further research is necessary to identify and overcome barriers to abstinence among cancer survivors undergoing active treatment.