Table 6.
Top 20 keywords in terms of frequency in the research.
| Rank | Keyword | Frequency |
|---|---|---|
| 1 | Depression | 3,374 |
| 2 | Myocardial infarction | 2,377 |
| 3 | Coronary heart disease | 2,233 |
| 4 | Mortality | 1,843 |
| 5 | Risk factor | 1,266 |
| 6 | Risk | 1,260 |
| 7 | Cardiovascular disease | 1,231 |
| 8 | Anxiety | 1,220 |
| 9 | Quality of life | 981 |
| 10 | Association | 974 |
| 11 | Symptom | 925 |
| 12 | Coronary artery disease | 847 |
| 13 | Heart disease | 828 |
| 14 | Acute myocardial infarction | 824 |
| 15 | Prevalence | 763 |
| 16 | Health | 733 |
| 17 | Major depression | 664 |
| 18 | Disease | 656 |
| 19 | Meta analysis | 552 |
| 20 | Women | 499 |