Studying suicide using proxy-based data: reliability and validity of a short version scale for measuring quality of life in rural China.

ABSTRACT:

Background

To evaluate the reliability and validity of the short version six-item Quality of Life Scale (QOLS-6) and the consistency of subject-proxy data in a case-control psychological autopsy study on elderly suicide in rural China.

Methods

A two-stage stratified cluster sampling method was used to select research sites. We used self-administered questionnaires to collect proxy-based information from informants and subject-based information from living comparisons.

Results

A total of 242 pairs of suicide cases and living comparisons were selected in our research. Subject-proxy consistency for QOLS-6 was good (Intraclass correlation coefficient (ICC) was 0.688) in living controls. Good internal consistency of QOLS-6 was validated by Cronbach's α being greater than 0

SUBMITTER: He H 

PROVIDER: S-EPMC8588864 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature