Co-morbidities (table 1)

There were significant differences in asthma, with those with CRSwNP having more than three times the odds of having asthma compared to those with CRSsNP(2). Other statistically significant differences included autoimmune disorders being more common in CRSsNP and with CRSwNP patients more likely to say they “never” or “seldom” suffered an URTI.