The influence of socioeconomic status on individual attitudes and experience with clinical trials

Characterizing perceptions of clinical trials among the socioeconomically disadvantaged is necessary for understanding how social determinants of health such as socioeconomic disparities in education and income can affect people’s awareness of and exposure to clinical trials

A survey was distributed in spring 2023 among a survey taking sample stratified by demographic variables to reflect the U.S. population. The survey assessed the socioeconomic status of the respondent and related covariates, as well as outcome measures including interest in joining a clinical trial, concerns relating to participation, and whether the respondent had previously been asked to participate. Multiple and logistic regression were used to assess the relationship between predictor and outcome variables

Here we show the results of outcome measures regressed on main predictors related to socioeconomic status and related demographic predictors. Education, employment status, insurance coverage, and English proficiency were significant predictors of interest in clinical trial participation. Education and the presence of a healthcare professional or former clinical trial participant in the respondent’s personal network were significant predictors of whether the respondent had previously been asked to participate in a clinical trial

The results of the analysis reveal how socioeconomically vulnerable groups, including those from low income and low education groups, are being excluded in clinical research. Analyses also uncovered the impact of clinical trial social influence—the presence of having a family or friend in one’s social network who participated in a clinical trial—on willingness to participate and exposure to clinical trials.