TABLE 6.
Top 20 keywords with the highest count in IBS research.
| Rank | Keywords | Count | Centrality | Rank | Keywords | Count | Centrality |
| 1 | Symptom | 1,020 | 0.01 | 11 | Depression | 256 | 0.03 |
| 2 | Clinical trial | 888 | 0.1 | 12 | Risk factor | 246 | 0.01 |
| 3 | Quality of life | 854 | 0.01 | 13 | Stress | 243 | 0.01 |
| 4 | Epidemiology | 819 | 0.05 | 14 | Intestinal inflammation | 238 | 0.01 |
| 5 | Pain | 566 | 0 | 15 | Population | 232 | 0 |
| 6 | Gut microbiota | 518 | 0.05 | 16 | Anxiety | 228 | 0 |
| 7 | Management | 431 | 0 | 17 | Meta-analysis | 213 | 0 |
| 8 | Hypersensitivity | 424 | 0.02 | 18 | Diarrhea predominant IBS | 211 | 0.01 |
| 9 | Efficacy | 297 | 0.01 | 19 | Women | 180 | 0 |
| 10 | Constipation predominant IBS | 276 | 0.02 | 20 | Mast cell | 179 | 0.01 |
| 10 | Diagnosis | 276 | 0 |