Abstract
Eurostat's official Healthy Life Years (HLY) estimates are based on European Union Statistics on Income and Living Conditions (EU-SILC) cross-sectional data. As EU-SILC has a rotational sample design, the largest part of the samples are longitudinal, health-related attrition constituting a potential source of bias of these estimates. Bland-Altman plots assessing the agreement between pairs of HLY based on total and new rotational, representative samples demonstrated no significant, systematic attrition-related bias. However, the wide limits of agreement indicate considerable uncertainty, larger than accounted for in the confidence intervals of HLY estimates.
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