Patient Characteristics by MPS Acquisition Types and Normal or Abnormal MPS Results
| Characteristic | Prone and supine (n = 655) | Supine-only (n = 3,179) | ||||
|---|---|---|---|---|---|---|
| Normal (n = 368) | Abnormal (n = 287) | Normal (n = 1,880) | Abnormal (n = 1,299) | |||
| Age (y) | 64.4 ± 11.3 | 69.7 ± 10.1 | 63.0 ± 12.6 | 69.7 ± 10.6* | ||
| Male sex | 260 (70.7) | 227 (79.1)* | 958 (51.0)† | 941 (72.4)*‡ | ||
| Hypertension | 172 (46.7) | 147 (51.2) | 799 (42.5) | 700 (53.9) | ||
| Diabetes | 38 (10.3) | 62 (21.1) | 205 (10.9) | 262 (20.2) | ||
| Hypercholesterolemia | 183 (49.7) | 145 (50.5) | 847 (45.1) | 619 (47.7) | ||
| Smoking | 44 (12.0) | 37 (12.9) | 228 (12.1) | 153 (11.8) | ||
| Family history of CAD | 92 (25.0) | 77 (26.8) | 495 (26.3) | 367 (28.3) | ||
| History of MI | 23 (6.3) | 132 (46.0) | 144 (7.7) | 656 (50.5) | ||
| History of revascularization | 56 (15.2) | 160 (55.7) | 165 (8.8) | 799 (61.5)*‡ | ||
| Digitalis use | 24 (6.5) | 20 (7.0) | 108 (5.7) | 161 (12.4)*‡ | ||
| Angina | 128 (34.8) | 118 (41.1) | 756 (40.2) | 460 (35.4) | ||
| Shortness of breath | 16 (4.3) | 19 (6.6) | 82 (4.4) | 96 (7.4) | ||
| Adenosine stress | 97 (26.4) | 120 (41.8) | 490 (26.1) | 581 (44.7) | ||
| Prescan likelihood of CAD | 0.34 ± 0.30 | 0.44 ± 0.34* | 0.33 ± 0.29 | 0.45 ± 0.35* | ||
| Abnormal rest ECG | 228 (62.0) | 236 (82.2)* | 1,164 (61.9) | 1,144 (88.1)*‡ | ||
| SSS | 0.5 ± 0.9 | 13.8 ± 8.7* | 0.5 ± 0.9 | 15.2 ± 9.1*‡ | ||