The effect of medicare and screening guidelines on colorectal cancer outcomes

Association of health insurance coverage disruptions and breast and colorectal cancer screening

BACKGROUND

Health insurance coverage is critical for ensuring access to recommended health care in the United States. This study investigated the associations of health insurance coverage disruptions, also known as coverage churn, and receipt of breast and colorectal cancer screening.

METHODS

Adults who were age-eligible and younger than 65 years (range, 50-64 years) for breast (n = 17,128 women) and colorectal (n = 32,562 individuals) cancer screening were identified from 5 years of the National Health Interview Survey. Adults were categorized into five groups based on insurance type at survey (private, public, none) and prior coverage disruptions within the past year. Screening outcomes included: (1) ever-screened, (2) past-year screening, and (3) guideline-concordant screening. Separate multivariate logistic regression models were used to evaluate the associations between insurance coverage disruptions and cancer screening.

RESULTS

Among adults who had coverage at the time of the survey, 3.1% with private insurance and 6.5% with public insurance reported prior coverage disruptions. Individuals without health insurance coverage had the lowest level of screening. Among individuals who had private coverage, prior disruptions were associated with lower guideline-concordant screening in adjusted analyses (breast cancer screening: adjusted prevalence ratio [aPR], 0.82; 95% confidence interval [CI], 0.75-0.89; colorectal cancer screening: aPR, 0.78; 95% CI, 0.72-0.86); among those who had public coverage, prior disruptions were also associated with lower guideline-concordant breast cancer screening (aPR, 0.73; 95% CI, 0.60-0.89) and colorectal cancer screening (aPR, 0.84; 95% CI, 0.72-0.99).

CONCLUSIONS

Health insurance coverage disruptions were associated with lower past-year and guideline-concordant breast and colorectal cancer screening. The current findings underscore the importance of stable health insurance coverage to improve cancer screening and early detection when treatment is most effective.

Medicare Eligibility and Racial and Ethnic Disparities in Operative Fixation for Distal Radius Fracture

Importance

Medicare provides near-universal health insurance to US residents aged 65 years or older. How eligibility for Medicare coverage affects racial and ethnic disparities in operative management after orthopedic trauma is poorly understood.

Objective

To assess the association of Medicare eligibility with racial and ethnic disparities in open reduction and internal fixation (ORIF) after distal radius fracture (DRF).

Design, Setting, and Participants

This retrospective cohort study with a regression discontinuity design obtained data from the Healthcare Cost and Utilization Project all-payer statewide databases for Florida, Maryland, and New York. These databases contain encounter-level data and unique patient identifiers for longitudinal follow-up across emergency departments, outpatient surgical centers, and hospitals. The cohort included patients aged 57 to 72 years who sustained DRFs between January 1, 2016, and November 30, 2019. Data analysis was performed between March 1 and October 15, 2023.

Exposure

Eligibility for Medicare coverage at age 65 years.

Main Outcomes and Measures

Type of management for DRF (closed treatment, external fixation, percutaneous pinning, and ORIF). Time to surgery was ascertained in patients undergoing ORIF. Multivariable logistic regression and regression discontinuity design were used to compare racial and ethnic disparities in patients who underwent ORIF before or after age 65 years.

Results

A total of 26 874 patients with DRF were included (mean [SD] age, 64.6 [4.6] years; 22 359 were females [83.2%]). Of these patients, 2805 were Hispanic or Latino (10.4%; hereafter, Hispanic), 1492 were non-Hispanic Black (5.6%; hereafter, Black), and 20 548 were non-Hispanic White (76.5%; hereafter, White) and 2029 (7.6%) were individuals of other races and ethnicities (including Asian or Pacific Islander, Native American, and other races). Overall, 32.6% of patients received ORIF but significantly lower use was observed in Black (20.2% vs 35.4%; P < .001) and Hispanic (25.8% vs 35.4%; P < .001) patients compared with White individuals. After adjusting for potential confounders, multivariable logistic regression analysis confirmed the disparity in ORIF use in Black (odds ratio [OR], 0.60; 95% CI, 0.50-0.72) and Hispanic patients (OR, 0.82; 95% CI, 0.72-0.94) compared with White patients. No significant difference in ORIF use was found among racial and ethnic groups at age 65 years. The expected disparity in ORIF use between White and Black patients at age 65 years without Medicare coverage was 12.6 percentage points; however, the actual disparity was 22.0 percentage points, 9.4 percentage points (95% CI, 0.3-18.4 percentage points) greater than expected, a 75% increase (P = .04). In the absence of Medicare coverage, the expected disparity in ORIF use between White and Hispanic patients was 8.3 percentage points, and this result persisted without significant change in the presence of Medicare coverage.

Conclusions and Relevance

Results of this study showed that surgical management for DRF was popular in adults aged 57 to 72 years, but there was lower ORIF use in racial or ethnic minority patients. Medicare eligibility at age 65 years did not attenuate race and ethnicity-based disparities in surgical management of DRFs.