Development and validation of a short version of the quality of life-DSD questionnaire for parents of young children with conditions affecting sex development.

ABSTRACT

Background: There is a paucity of information on health-related quality of life (HRQoL) outcomes in parents and children with conditions affecting sex development. The objective of this study was to develop short forms of HRQoL questionnaires which consist of a 63-item and 25-item parent self-report (PSR) and parent proxy-report (PPR), respectively, optimizing use in routine clinical settings. Methods: Short questionnaires were developed following exploratory factor analysis using raw data from 132 parents. Long and short PSRs were completed by 24 parents of children with conditions affecting sex development, with a median age of 3.6 years (range 0.1, 6.6); 21 (88%) were boys, and 11 (46%) had proximal hypospadias. A subset of 19 parents completed both long and short PPRs. Results: Item selection, based on factor loadings of >0.8 and expert consultation, produced short PSRs and PPRs containing 16 and 7 items, respectively. There was no statistically significant difference in 11 out of 12 (92%) scales on the PSR and 4 out of 5 (80%) scales on the PPR when comparing short and long questionnaire scores. The short and long questionnaires took <1 min and 5 min to complete, respectively. Eighteen parents (75%) reported that the time taken to complete the short questionnaires was acceptable; 10 (42%) preferred short questionnaires. Ten (42%) versus 6 (25%) stated a preference for completing the short versus long questionnaires. Conclusion: The short versions were largely representative of the long questionnaires and are acceptable for evaluating psychosocial distress in young children and their caregivers. Further psychometric validation of the short forms is warranted.