Data quality in centenarian research: The proxy-centenarian relationship and item nonresponse in the SWISS100 study.

ABSTRACT:

Background

In recent years, there has been a growing interest in the investigation of very old individuals. However, various challenges arise when collecting data from this age group. Given potential health and cognitive impairments and the difficulty of retrieving accurate self-reported data, involving individuals knowledgeable of the target person as proxy respondents are an invaluable solution. The primary goal of this study is to explore the association between proxy-centenarian relationship and item nonresponse, a pivotal data quality measure.

Data and methods

We used data from the phone study conducted within SWISS100, a study on centenarians in Switzerland, focusing on a subsample of 94 centenarians and 75 proxy respondents. We compared characteristics of centenarians

SUBMITTER: Zaccaria D 

PROVIDER: S-EPMC11771874 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature