Classification of cardiovascular diseases
| Underlying cardiovascular diseases (n=144) | Ordinary, n (%) | Severe, n (%) | Critical, n (%) | Healing, n (%) | Death, n (%) |
| Cardiovascular diseases (n=144) | 28 (19.4) | 76 (52.8) | 40 (27.8) | 35 (24.3) | 32 (22.2) |
| Hypertension (n=125) | 23 (18.4) | 67 (53.6) | 35 (28.0) | 32 (25.6) | 28 (22.4) |
| Coronary heart disease (n=41) | 5 (12.2) | 22 (53.7) | 14 (34.1) | 6 (14.6) | 17 (41.5) |
| Abnormal heart rhythms (n=12) | 3 (25.0) | 4 (33.3) | 5 (41.7) | 2 (16.7) | 4 (33.3) |
| Cerebrovascular disease (n=8) | 0 (0) | 6 (75.0) | 2 (25.0) | 1 (12.5) | 5 (62.5) |
| Two or more cardiovascular diseases (n=40) | 3 (7.5) | 22 (55.0) | 15 (37.5) | 6 (15.0) | 17 (42.5) |