Using of the World Health Organization quality of life instrument, short form to patient after PCI or CABG surgery.

Objectives: This investigation aimed to estimate reliability of the WHOQOL-BREF questionnaire and quality of life of patients after PCI or CABG surgery.

Methods: In this cross-sectional study, 268 patients after PCI or CABG surgery were studied in East Kazakhstan and Pavlodar regions of Kazakhstan from September to December 2019. The Russian version of the World Health Organization Quality of Life Instrument, Short Form (WHOQOL-BREF) was used to measure their quality of life.