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Top 20 Frequency of Core Keyword in Chinese Articles.
| TOP | Key Words | Number | TOP | Key Words | Number |
|---|---|---|---|---|---|
| 1 | Comorbidity | 152 | 11 | Risk factors | 29 |
| 2 | depression | 144 | 12 | Multi-drug | 27 |
| 3 | The elderly | 126 | 13 | Influencing factors | 26 |
| 4 | diabetes | 79 | 14 | Coronary Heart Disease | 26 |
| 5 | chronic | 61 | 15 | Elderly patients | 22 |
| 6 | Comorbidity | 58 | 16 | Quality of Life | 21 |
| 7 | weak | 44 | 17 | Prevalence | 20 |
| 8 | anxiety | 39 | 18 | Old age syndrome | 17 |
| 9 | hypertension | 37 | 19 | disability | 15 |
| 10 | Multiple diseases coexist | 32 | 20 | management | 14 |
