presented at the American Thoracic Society’s International Conference 2024.
“We know socioeconomic status plays an important role in health outcomes; however, there is little research into the impact of socioeconomic status on patients with sarcoidosis, particularly with disease severity,” said lead author Joshua Boron, MD, of Virginia Commonwealth University, Richmond, Virginia, in an interview. Identification of patients at higher risk of developing severe lung disease can help clinicians stratify these patients, he said.
Overall, the risk for severe lung disease at initial presentation was nearly three times higher in patients with no insurance than in those with private insurance and nearly three times higher in Black patients than in White patients (odds ratio [OR], 2.97 and 2.83, respectively). In addition, older age was associated with increased risk of fibrosis, with an OR of 1.03 per year increase in age.
No differences in fibrosis at presentation occurred based on sex or median income, and no difference in the likelihood of fibrosis at presentation appeared between patients with Medicaid vs private insurance.
“We were surprised at the degree of risk associated with no insurance,” said Dr. Boron. The researchers also were surprised at the lack of association between higher risk of severe stage lung disease in sarcoidosis patients and zip code estimates of household income as an indicator of socioeconomic status, he said.
For clinical practice, the study findings highlight the potentially increased risk for fibrotic lung disease among patients who are older, uninsured, and African American, said Dr. Boron.
“A limitation of our study was the utilization of zip code based on the US Census Bureau to get an estimation of average household income — a particular limitation in our city because of gentrification over the past few decades,” Dr. Boron said in an interview. “Utilizing area deprivation indices could be a better marker for identifying household income and give a more accurate representation of the true impact of socioeconomic disparities and severity of sarcoidosis at presentation,” he said.
Pinpointing Persistent Disparities
“We know there are multiple sources of disparities in the sarcoidosis population,” said Rohit Gupta, MD, director of the sarcoidosis program at Temple University Hospital, Philadelphia, in an interview.
The current study identified the relationship between several socioeconomic factors and sarcoidosis severity, showing greater disease severity in people experiencing socioeconomic inequalities, said Dr. Gupta, who was not involved in the study.
“I have personally seen this [disparity] in clinic,” said Dr. Gupta. However, supporting data are limited, aside from recent studies published in the last few years by researchers at the Cleveland Clinic and Johns Hopkins University, Baltimore, he said. The current study reflects those previous findings that people suffering from inequality have worse medical care, he added.
Overall, the findings were not surprising, “as we know this cohort of patients have chronic disease and worse morbidity and, in some cases, higher mortality,” but the results reinforce the need to pay closer attention to socioeconomic factors, said Dr. Gupta.
In practice, “we might use these findings as a reminder that when we see these patients for the first time, we should pay closer attention because they might need higher care,” he said. “The study also suggests these patients are coming late to a center of excellence,” he noted. When patients with socioeconomic disparities are seen for sarcoidosis at community hospitals and small centers, providers should keep in mind that their disease might progress faster and, therefore, send them to advanced centers earlier, he said.
The study was limited to the use of data from a single center and by the retrospective design, Dr. Gupta said. “Additional research should focus on building better platforms to understand these disparities,” he emphasized, so clinicians can develop plans not only to identify inequalities but also to address them.
The study received no outside funding. The researchers had no financial conflicts to disclose. Dr. Gupta had no financial conflicts to disclose.
A version of this article appeared on Medscape.com.