Chronic rhinosinusitis in asthma is a negative predictor of quality of life: results from the <scp>S</scp>wedish <scp>GA</scp>²<scp>LEN</scp> survey

Comorbid CRS was a significant and independent negative predictor of quality of life in asthmatics. Other negative factors were lower lung function, current smoking, obesity, advanced age, and having nonatopic asthma.