[Validation of methods assessing the quality of life in patients with stable angina pectoris].
The aim of the study was evaluation of the validity, reliability and sensitivity of the Seattle Angina Questionnaire (SAQ) and Disease Effect Profile (DEP) translated into Russian by the authors in assessment of life quality (LQ) of patients with stable angina of effort (SAE). The examination of 106 SAE (functional class II-IV) patients demonstrated that LQ by SAQ and DEP correlated with the evidence by the Medico-Social Questionnaire of the Cardiological Research Centre. The constructive validity of SAQ and DEP was examined using factor analysis. All the SAQ sections but one and 7 of 11 sections of DEP were valid. Reproducibility was 0.938 and 0.906, respectively (p < 0.05), Cronbach's alpha was 0.56 and 0.94, respectively. According to SAQ, adequate choice of therapy improves LQ in SAE patients with functional class III but not in functional class II or IV. According to DEP LQ remained unchanged irrespective of the therapy. Thus, Russian translation of SAQ and DEP has proved its internal, external and constructive validity, is integral and reproducible. In addition, SAQ is sensitive to changes in LQ in SAE.
Syrkin
A L
AL
Pechorin
E A
EA
Drinitsina
S V
SV
D000787:Angina Pectoris / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D011788:Quality of Life; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires