Danish translation and validation of the Parotidectomy Outcome Inventory 8

Complications and recurrence within benign salivary gland surgery are not systematically registered in Denmark. Patient-reported outcome measures are increasingly included in clinical and health policy decision-making, and therefore it is crucial that this type of data is valid. A patient-reported questionnaire regarding outcome after benign parotid gland surgery has been developed and implemented in a national German database. We aimed to translate the Parotidectomy Outcome Inventory 8 (POI-8) into Danish and validate it.

The questionnaire was translated. The study population was recruited from a single centre from 6 December 2019 to 1 June 2022. Patients > 18 years of age who had undergone their first parotid salivary gland surgery for a benign tumour were included. The questionnaire underwent pilot-testing and test-retesting; it was sent to respondents twice at a 14-day interval. For the categorical variables, the reliability of the items was tested using the weighted kappa-coefficient.

A weighted kappa coefficient of 0.74 and Cronbach's alpha of 0.78 were found. No significant difference was found between testing at day 0 and 14.

We have translated and validated the Danish version of the POI-8, finding acceptable levels of the weighted kappa coefficient and Cronbach's alpha. We suggest the systematic use of PROMs in Danish healthcare and specifically in parotidectomy for benign neoplasms.

No funding.

Not relevant.