Skip to main content

Table 4 Rotated component matrix of the 1-year changes in 15D dimension values and instrument scores

From: Patient-reported outcomes in coronary artery disease: the relationship between the standard, disease-specific set by the International Consortium for Health Outcomes Measurement (ICHOM) and the generic health-related quality of life instrument 15D

One-year change in item Factor (% of variance explained)
1 (20.6%) 2 (7.5%) 3 (7.5%) 4 (6.2%) 5 (5.8%) 6 (5.5%) 7 (5.2%)
SAQ-PL 0.65  − 0.03  − 0.10 0.18 0.21 0.07 0.04
SAQ-AF 0.33 0.40  − 0.11 0.25 0.57  − 0.18 0.09
SAQ-QL 0.55 0.44  − 0.12 0.11 0.35  − 0.23 0.09
RDS 0.64  − 0.17  − 0.22 0.25  − 0.11 0.04 0.17
PHQ-2  − 0.19  − 0.65 0.05  − 0.16 0.04 0.10  − 0.02
15D mobility 0.52 0.00  − 0.20  − 0.17 0.07  − 0.10 0.24
15D vision 0.09 0.05 0.01 0.11  − 0.08 0.80 0.05
15D hearing 0.05  − 0.16 0.23  − 0.02 0.74 0.03 0.03
15D breathing 0.56 0.14 0.24  − 0.17 0.16 0.19 0.12
15D sleeping 0.26  − 0.05 0.36 0.33  − 0.35  − 0.42 0.14
15D eating 0.06  − 0.02  − 0.05  − 0.10 0.10 0.13 0.85
15D speech 0.02  − 0.06 0.57 0.01 0.10 0.44 0.15
15D excretion  − 0.03 0.08 0.03 0.75 0.07 0.10  − 0.02
15D usual activities 0.62 0.13  − 0.05 0.44 0.01 0.01  − 0.09
15D mental functions  − 0.02 0.10 0.78 0.02 0.09  − 0.11  − 0.08
15D discomfort and symptoms 0.15 0.25 0.17 0.35  − 0.14  − 0.19 0.49
15D depression 0.11 0.66 0.22 0.07  − 0.03 0.25  − 0.08
15D distress 0.10 0.75 0.01  − 0.08  − 0.02  − 0.07 0.09
15D vitality 0.60 0.21 0.12 0.19  − 0.11  − 0.08 0.12
15D sexual activity 0.60 0.20  − 0.01 0.04  − 0.25 0.11 0.03
  1. The highest loadings are bolded
  2. PHQ-2, two-item Patient Health Questionnaire; RDS, Rose Dyspnea Scale; SAQ-AF, Seattle Angina Questionnaire Angina Frequency; SAQ-PL, Seattle Angina Questionnaire Physical Limitation; SAQ-QL, Seattle Angina Questionnaire Quality of Life; SAQ-7, Seattle Angina Questionnaire short-form; 15D, 15-dimensional instrument