Table 4.
Research topics classified by LDA.
| Rank by the Highest Volume | Research Topics | N | Percent |
|---|---|---|---|
| Topic 2 | Pulmonary rehabilitation for COPD | 468 | 16.30% |
| Topic 1 | Comorbidities, mental health and QoL in COPD patients | 436 | 15.20% |
| Topic 3 | QoL of patients with COPD: validity of questionnaire | 355 | 12.40% |
| Topic 5 | Predictors for mortality due to acute exacerbation of COPD | 287 | 10.00% |
| Topic 7 | Pharmacological Therapy and COPD | 272 | 9.50% |
| Topic 8 | Management of COPD | 257 | 9.00% |
| Topic 4 | Multicomponent interventions: home care, rehabilitation, self-care education, integrated care, and pharmacy-led management | 255 | 8.90% |
| Topic 6 | Perception and QoL of patients living with COPD and their caregivers | 217 | 7.60% |
| Topic 10 | Noninvasive Ventilation and Oxygen Therapy in patient with COPD | 160 | 5.60% |
| Topic 9 | COPD Phenotype and quality of life | 157 | 5.50% |