Table 1.
Distribution of categories of original health research papers from India included in PubMed.
| Type of health research | No. (%) of papers in 2002 | No. (%) of papers in 2007 | 2007 to 2002 ratio |
| Basic research | 2227 (49.6) | 5360 (59.1) | 2.4 |
| Pure | 518 (11.5) | 1897 (20.9) | 3.7 |
| Applied | 1709 (38.0) | 3463 (38.2) | 2.0 |
| Clinical research | 2119 (47.2) | 3253 (35.9) | 1.5 |
| Patient series/management | 1639 (36.5) | 1642 (18.1) | 1.0 |
| Laboratory studies/clinical investigations | 277 (6.2) | 915 (10.1) | 3.3 |
| Clinical trials | 153 (3.4) | 312 (3.4) | 2.0 |
| Clinical epidemiology | 50 (1.1) | 384 (4.2) | 7.7 |
| Public health research | 148 (3.3) | 453 (5.0) | 3.1 |
| Epidemiology | 72 (1.6) | 249 (2.7) | 3.5 |
| Behavioural/environmental/social | 31 (0.7) | 119 (1.3) | 3.8 |
| Health system/policy | 45 (1.0) | 85 (0.9) | 1.9 |
| Total | 4494 (100) | 9066 (100) | 2.0 |