| Rank | Keywords | Count | Centrality |
| 1 | prevalence | 232 | 0.07 |
| 2 | health | 170 | 0.02 |
| 3 | Quality of life | 148 | 0.03 |
| 4 | depression | 146 | 0.03 |
| 5 | risk | 140 | 0.03 |