Table 2.
Ten research topics emerged classified by LDA for titles and abstracts’ contents
| No | Topic | Most frequent terms | N | Percent |
|---|---|---|---|---|
| 1 | ART intervention | cost-effectiveness; antiretroviral; therapy; patients; analysis, clinical; effectiveness; treatment; objective; infection, highly; regimens; study; HIV-infected; combination, trial; active; HAART; HIV-1; adults | 45 | 13.2% |
| 2 | Drug use prevention intervention | cost-effectiveness; treatment; methadone; maintenance; injection, users; health; programs; study; intervention, supervised; drugs; prevention; reduction; background, opioid; analysis; substance; abuse; injecting | 41 | 12.0% |
| 3 | Prevention of mother-to-child transmission intervention | cost-effectiveness; transmission; Africa; objective; model; south; women; prevent; methods; effectiveness; sub-Saharan; mother-to-child; prevention; strategies; analysis; design; reduce; health; interventions; estimate | 37 | 10.8% |
| 4 | Cancer screening and testing intervention in HIV/AIDS patients | Human; virus; immunodeficiency; cost-effectiveness; screening; Hepatitis; testing; blood; infection; study; compared; antibody; cancer; background; tests; cervical; donations; purpose; papillomavirus; determine | 36 | 10.5% |
| 5 | ART intervention in resource-limited settings | antiretroviral; therapy; cost-effectiveness; settings; background, treatment; monitoring; health; Africa; resource-limited, clinical; sub-Saharan; guidelines; viral; resistance, world; different; first-line; organization; countries | 35 | 10.2% |
| 6 | HIV counseling and testing intervention | testing; screening; cost-effectiveness; united; states, analysis; objective; voluntary; counseling; design, effectiveness; disease; routine; impact; evaluate, infection; patients; expanded; benefits; objectives | 33 | 9.6% |
| 7 | Condom distribution intervention | cost-effectiveness; analysis; transmitted; workers; sexually, infections; female; background; south; condom, program; impact; Africa; cost-benefit; cost-utility, India; health; evidence; diseases; intervention | 32 | 9.4% |
| 8 | HIV-related respiratory diseases treatment and prevention | Effectiveness; tuberculosis; background; HIV-infected; patients; strategies; infection; efficacy; diagnosis; mortality; Individuals; rapid; diagnostic; study; persons; early; preventive; infected; isoniazid; Uganda | 28 | 8.2% |
| 9 | Pre and post-exposure prophylaxis interventions | cost-effectiveness; prophylaxis; economic; impact; evaluation, prevention; sexual; background; pre-exposure; intervention, program; potential; objective; post-exposure; exposure, Zambia; couples; following; service; methods | 28 | 8.2% |
| 10 | HIV/AIDS vaccination intervention | costs; prevention; HIV/aids; cost-effectiveness; effectiveness, interventions; disease; economic; treatment; estimates, study; comparing; important; medical; policy; using; healthcare; integrated; incremental; vaccine | 27 | 7.9% |