Influence of Political Ideology on Colorectal Cancer Screening Among Adults in the United States

Background: Political ideologies have emerged as one of the risk factors driving healthcare decisions, including colorectal cancer screening in US adults. Previous links between conservative viewpoints and lower awareness of preventive health services have been established. We aimed to evaluate how differences in political ideology affect CRC screening practices using a nationally representative sample of US adults.

Methods: Using data from the 2020 Health Information National Trends Survey (HINTS), we compared compliance with CRC screening guidelines between conservative, moderate, and liberal political groups. Survey-weighted multivariable logistic regression models were employed to ascertain the relationship between political ideology and CRC screening.

Results: Of the 3368 respondents, 71.0% (95% CI: 67.8, 74.0) were screened for CRC. A total of 1026 (30.5%) were liberal, 1148 (34.1%) were moderate, and 1194 (35.4%) were conservative. Out of the conservatives (78.8%) were non-Hispanic Whites compared to moderates (61.4%) and liberals (64.0%). There was no significant difference in age, level of education, or income group by political ideology. In adjusted models, there was no significant difference in CRC screening by political ideology.

Conclusion: Contrary to previous ties, we found no significant differences in compliance with CRC screening guidelines among these groups, concluding that CRC screening remains a significant health concern for all individuals, irrespective of political ideologies.