Table 4.
Associations Between Angina Characteristics and Coronary Artery Disease by Age: Simple Logistic Regression Analysis
| Variable | Age < 65 | Age ≥ 65 | ||||||
|---|---|---|---|---|---|---|---|---|
| All (n=454) | Control(n=122) | Obstructive(n=332) | p | All (n=605) | Control(n=136) | Obstructive(n=469) | p | |
| n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | |||
| Severity | ||||||||
| Class 0 (asymptomatic) | 66 (14.5) | 13 (10.7) | 53 (16.0) | — | 26 (9.7) | 13 (23.2) | 13 (6.1) | — |
| Class 1 | 147 (32.4) | 32 (26.2) | 115 (34.6) | .732 | 78 (29.0) | 13 (23.2) | 65 (30.5) | .001 * |
| Class 2 | 193 (42.5) | 55 (45.1) | 138 (41.6) | .163 | 111 (41.3) | 19 (33.9) | 92 (43.2) | .001 * |
| Class 3 | 30 (6.6) | 12 (9.8) | 18 (5.4) | .039 * | 42 (15.6) | 10 (17.9) | 32 (15.0) | .029 * |
| Class 4 | 18 (4.0) | 10 (8.2) | 8 (2.4) | .004 * | 12 (4.5) | 1 (1.8) | 11 (5.2) | .032 * |
| Type | ||||||||
| Atypical | 185 (40.7) | 61 (50.0) | 124 (37.3) | — | 102 (37.9) | 25 (44.6) | 77 (36.2) | — |
| Typical | 269 (59.3) | 61 (50.0) | 208 (62.7) | .015 * | 167 (62.1) | 31 (55.4) | 136 (63.8) | .245 |
| Frequency | ||||||||
| None | 148 (32.6) | 39 (32.0) | 109 (32.8) | — | 74 (27.5) | 22 (39.3) | 52 (24.4) | — |
| 1–3 times/month | 109 (24.0) | 26 (21.3) | 83 (25.0) | .649 | 59 (21.9) | 10 (17.9) | 49 (23.0) | .090 |
| 1–2 times/week | 95 (20.9) | 30 (24.6) | 65 (19.6) | .378 | 65 (24.2) | 8 (14.3) | 57 (26.8) | .015 * |
| 3–6 times/week | 38 (8.4) | 10 (8.2) | 28 (8.4) | .996 | 27 (10.0) | 6 (10.7) | 21 (9.9) | .457 |
| ≥7imes/week | 64 (14.1) | 17 (13.9) | 47 (14.2) | .974 | 44 (16.4) | 10 (17.9) | 34 (16.0) | .409 |
*
p<.05. ** p < .01.