Inflammatory bowel disease (IBD) has an incidence rate of 10.9 per 100,000 person-years and a prevalence rate of 721 per 100,000 population, according to a study published in Gastroenterology.
The study estimates that about 2.39 million Americans were diagnosed with IBD in 2020.
Researchers from the University of Pennsylvania used administrative claims datasets to estimate the incidence, prevalence, and racial-ethnic distribution of physician-diagnosed IBD in the United States.
Valid combinations of medical diagnoses, diagnostic procedures, and prescription medications were used to identify these cases.
The Study and Its Findings
According to the research, the standardized incidence of IBD, after adjusting for age and sex, was 10.9 per 100,000 person-years.
The peak incidence of IBD occurred in the third decade of life, then decreased to a relatively steady level across the fourth to eighth decades, with a further decline after that.
The study also showed that the standardized prevalence of IBD, after adjusting for age, sex, and insurance, was 721 per 100,000 population.
When extrapolated to the 2020 census data, it’s estimated that about 2.39 million Americans were diagnosed with IBD.
The study found differences in the prevalence of IBD among various racial and ethnic groups. The prevalence was 812, 504, 403, and 458 per 100,000 population in White, Black, Asian, and Hispanic Americans, respectively.
Implications and Relevance of the Study
“Accurate estimates of IBD incidence and prevalence taking into account racial and ethnic distribution are crucial because they provide valuable information about the burden of disease in a population,” a co-author of the study said.
This comprehensive data is vital for healthcare professionals and policy makers, assisting them in making better-informed public health decisions, managing IBD more effectively, allocating resources appropriately, and improving patient outcomes.
It’s worth noting that several authors of the study disclosed ties to the biopharmaceutical industry.
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The study was published in Gastroenterology.
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