| 序号 | 关键词 | 频次 | 中心性 | 年份 |
| 1 | care | 241 | 0.13 | 1994 |
| 2 | elderly patient | 216 | 0.04 | 1994 |
| 3 | older adult | 163 | 0.04 | 2000 |
| 4 | health | 160 | 0.06 | 1999 |
| 5 | management | 153 | 0.03 | 1999 |
| 6 | integrated care | 151 | 0.02 | 2003 |
| 7 | health care | 137 | 0.03 | 1997 |
| 8 | outcm | 136 | 0.12 | 1993 |
| 9 | older people | 134 | 0.04 | 2003 |
| 10 | elderly people | 114 | 0.02 | 1997 |
| 11 | prevalence | 108 | 0.04 | 2001 |
| 12 | quality of life | 108 | 0.02 | 1995 |
| 13 | risk | 106 | 0.08 | 1993 |
| 14 | impact | 103 | 0.07 | 1994 |
| 15 | mortality | 102 | 0.04 | 2005 |
| 16 | intervention | 94 | 0.08 | 1997 |
| 17 | program | 92 | 0.05 | 1998 |
| 18 | quality | 90 | 0.06 | 1999 |
| 19 | model | 87 | 0.04 | 1995 |
| 20 | community | 84 | 0.06 | 1997 |