# Quality of life in diverticular disease: translation and validation of the Danish version of the diverticulitis quality of life instrument (DV‑QOL)

## TL;DR

This study translated and validated a questionnaire to assess the quality of life in Danish-speaking patients with diverticular disease.

## Contribution

The study provides a validated Danish version of the DV-QOL instrument for evaluating quality of life in diverticular disease patients.

## Key findings

- The Danish DV-QOL showed strong correlation with overall quality of life (p < 0.001).
- The instrument demonstrated high discriminative validity and reliability with Cronbach’s α of 0.92.
- It accurately identified patients with significant bowel function impact on quality of life with 82% sensitivity and 79% specificity.

## Abstract

This study aimed to translate and validate the Danish version of the DV-QOL questionnaire, originally developed in 2015, to assess the impact of diverticular disease on quality of life (QOL) in Danish-speaking patients with diverticulosis.

Following international standards, the DV-QOL was translated. A cross-sectional survey was conducted in 2023 with Danish-speaking subjects. The survey included the Danish DV-QOL, an anchor QOL question, and the EuroQol visual analogue scale. Psychometric properties were evaluated for validity, internal consistency, and the ability to identify significant impacts on QOL.

The validation cohort included 16,766 subjects. The DV-QOL score showed a strong correlation with overall QOL (p < 0.001) and high discriminative validity (p < 0.001). Reliability was confirmed with an inter-item correlation of 0.41 and a Cronbach’s α of 0.92. The score accurately identified patients with a significant impact of bowel function on QOL, achieving 82% sensitivity and 79% specificity.

The Danish DV-QOL is a valid and reliable tool for measuring diverticular disease-specific QOL, beneficial for both clinical and research applications in understanding the impact of the disease and patient outcomes.

The online version contains supplementary material available at 10.1007/s00384-025-04911-z.