The socioeconomic cost of chronic rhinosinusitis study

Chronic rhinosinusitis (CRS) is highly prevalent, affecting 11% of the population. Studies evaluating the socio-economic impact of CRS are mostly limited to the US population. Currently there is no study that has evaluated the socio-economic costs of CRS in the UK.

A case-control study of patients with CRS and healthy controls was conducted to investigate the wider socio-economic impact of the disease. Data on demographic and socioeconomic characteristics, out-of-pocket expenditure (OOPE), health resource utilisation, productivity losses and health-related quality of life (HRQoL) via the EQ-5D and SNOT-22 instruments, were collected from questionnaires.

A total of 139 CRS participants and 67 control participants completed the questionnaires. The average total OOPE per patient extrapolated to a 12-month period was £304.84. Other important findings include significantly higher reported primary care interactions (4.14 vs. 1.16) as well as secondary care interactions (2.61 vs 0.4) in CRS group as compared to controls over three-months. The average total missed workdays was estimated to be 18.7 per patient per year. The estimated incremental healthcare cost of CRS per year is £16.8 billion or £2.8 billion per million inhabitants. Factors predictive of a higher OOPE include higher household occupancy and income and these accounted for only 9.7% of the total variance in total OOPEs. Other socioeconomic, demographic and HRQoL variables were not found to be predictive factors of OOPE.

This study showed that CRS has a significant wider economic burden beyond the immediate direct healthcare costs. CRS participants had a high level of healthcare service use, OOPE and productivity loss. Results from this study will add to the existing limited data both for the UK and abroad and emphasises the need for effective treatments for these patients to reduce the disease impact.