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Table 1 Distribution of categories of original health research papers from India included in PubMed.

From: Trends of public health research output from India during 2001-2008

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