Study characteristics and appropriateness classification according to groups
| PSQ derivation cohort (n=814) | Internal validation cohort (n=499) | External validation cohort (n=880) | p Value | |
|---|---|---|---|---|
| Age, years (median (IQR)) | 65.00 (52.00–76.00) | 67 (55–76) | 70 (58–80) | <0.01 |
| Male, n (%) | 444 (54.6) | 256 (51.3) | 449 (51.0) | 0.96 |
| Outpatient, n (%) | 573 (70.4) | 289 (57.9) | 661 (75.1) | <0.01 |
| Referred by cardiologists, n (%) | 348 (42.8) | 253 (50.7) | 686 (78.0) | <0.01 |
| Appropriateness score | ||||
| Appropriate, n (%) | 707 (86.9) | 431 (86.4) | 774 (88.0) | <0.01 |
| RA appropriate, n (%) | 68 (8.4) | 37 (7.4) | 75 (8.5) | |
| May be appropriate, n (%) | 13 (1.6) | 18 (3.6) | 7 (0.8) | |
| Unclassifiable, n (%) | 26 (3.2) | 13 (2.6) | 24 (2.7) |
Data in bold typeface denote statistically significant results.