Prevalence, determinants of chronic rhinosinusitis and its impact on quality of life among students in Karachi, Pakistan.

Background: Chronic rhinosinusitis (CRS) is a common public health issue among students.

Methodology:  A total of 300 undergraduate students were selected through multistage cluster sampling from three public-sector universities. Sino-nasal Outcome Test (SNOT-22) and Rhinosinusitis Disability Index (RSDI) were used for determining the quality of life.