A cross-sectional study on the associations of overweight and smoking with current asthma symptoms in US adults, NHANES 2015–2018

Overweight and smoking are independent, modifiable predictors associated with current asthma symptoms in US adults, with a disproportionately strong effect observed in women. These findings identify a symptomatic profile that is associated with the likelihood of exacerbations. This profile may help inform clinical attention and future research aimed at reducing asthma morbidity and potential ED visits.