Aarab R, et al. - Via analyzing cross-sectional data of 23,356 participants of the HELIUS study, researchers compared the prevalence of adult-onset asthma and factors associated with this phenotype among different ethnic groups—including Dutch, South-Asian Surinamese, African Surinamese, Moroccan, Turkish, and Ghanaian origin participants—via logistic regression analyses. The participants in the Turkish, Moroccan, and South-Asian Surinamese groups exhibited a higher adjusted prevalence of adult-onset asthma (4.9% to 6.0%) vs that noted in Dutch, Ghanaian, and African Surinamese origin groups (2.4% to 2.6%). Factors that showed independent relation to adult-onset asthma included ethnicity, age, female sex, body mass index, and doctors’ diagnosis of nasal allergy/hay fever, and chronic sinusitis/polyps.