Table 4.
Changes in Seattle Angina Questionnaire after 6 weeks and 6 months according to how the diagnosis of coronary heart disease changed in patients allocated to CT coronary angiography
| Diagnosis of CHD refuted | New diagnosis of CHD | Unchanged diagnosis | p Value | |
|---|---|---|---|---|
| Total patients (n) | 423 | 166 | 1480 | |
| Change at 6 weeks (n) | 376 | 155 | 1224 | |
| Physical limitation | 0.3±1.2 (226) | −2.0±1.8 (101) | −0.6±0.6 (755) | 0.8198 |
| Angina stability | 17.8±1.7 (345) | 7.0±3.1 (147) | 17.6±1.1 (1145) | 0.1171 |
| Angina frequency | 11.3±1.4 (359) | 8.1±1.7 (151) | 11.6±0.7 (1174) | 0.4520 |
| Treatment satisfaction | −6.6±0.9 (355) | −8.6±1.4 (148) | −6.9±0.5 (1172) | 0.6693 |
| Quality of life | 11.3±1.2 (354) | 4.5±1.8 (151) | 8.4±0.6 (1176) | 0.0819 |
| Change at 6 months (n) | 341 | 137 | 1084 | |
| Physical limitation | 3.1±1.4 (206) | −3.2±2.0 (81) | 1.7±0.7 (650) | 0.1036 |
| Angina stability | 16.3±1.8 (318) | 6.4±3.5 (125) | 13.4±1.1 (1019) | 0.6374 |
| Angina frequency | 18.6±1.5 (330) | 10.3±2.1 (129) | 19.3±0.7 (1039) | 0.0006 |
| Treatment satisfaction | −5.0±1.1 (321) | −8.3±1.5 (127) | −4.6±0.5 (1037) | 0.1576 |
| Quality of life | 18.0±1.3 (321) | 8.6±2.1 (129) | 15.6±0.7 (1034) | 0.0164 |
Mean±SE (n).
Changes in diagnosis reflect those recorded by the attending clinician at 6 weeks postclinic attendance.
CHD, coronary heart disease.