Design and implementation of data quality controls in the EQ-DAPHNIE study: insights from the pilot phase and 15-country analysis.

ABSTRACT:

Objective

The EQ-DAPHNIE (EuroQol Data for Assessment of Population Health Needs and Instrument Evaluation) project is a large, multi-country survey initiative designed to generate population norms and enable comparative research using self-reported health measures. This paper describes the quality control processes and summarizes data quality metrics from the United Kingdom (UK) pilot and full implementation across 15 countries.

Methods

Representative samples were recruited via Dynata, an online survey panel provider, using quota sampling by age, sex, income, community setting, and language (where applicable). The UK pilot (n = 3012) informed survey refinements ahead of full rollout (n = 68,411). Quality metrics included completion rates, bot detection, speeding, missing da

SUBMITTER: Al Sayah F 

PROVIDER: S-EPMC12689740 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature