Prevalence

The prevalence of autism among 8-year-olds in the United States rose to approximately one in 36 children in 2020 amid a shift in the demographic makeup of children diagnosed with the condition, according to data published Thursday.

Alopecia prevalence and incidence rates increased between 2016 and 2019, a trend that may be reflective of a growing disease burden or simply due to more patients seeking care, according to a study.

Researchers reported finding higher rates of atrial fibrillation among a large primary care population compared with previous estimates in community-based research cohorts.

Increased exposure to domestic water with high mineral content — or domestic hard water — increased prevalence but not incidence of eczema in adults, according to a study.

The incidence and prevalence of inflammatory bowel disease have increased in Denmark over the past two decades, most notably prevalence of ulcerative colitis among adults older than 40 years, according to a study in Gastroenterology.

From 1988 to 2020, cases of undiagnosed diabetes declined markedly, which suggested major improvements in diabetes screening and detection, according to researchers.

The prevalence of pediatric obesity in the U.S. rose from 17% to 21% between 2011 and 2020, according to findings published in JAMA Pediatrics.

Researchers estimated that the prevalence of autism spectrum disorder, or ASD, among children and adolescents in the United States was 3.14% in 2019 and 2020 overall, up from 2.24% in 2014.

Childhood obesity incidence was higher and came at younger ages during the 2000s compared with the previous decade, according to a study in Pediatrics.

DENVER — Although migraine prevalence has remained stable over the past 30 years, measures of burden, including MIDAS scores, have steadily increased, Fred Cohen, MD, said at the American Headache Society’s annual scientific meeting.