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Table 1 Characteristics of the trials included in the review

From: A systematic review of randomised controlled trials in rheumatoid arthritis: the reporting and handling of missing data in composite outcomes

Characteristic

Number of trials (N = 51)

Publication year

 

2008

12 (24 %)

2009

11 (22 %)

2010

7 (14 %)

2011

4 (9 %)

2012

8 (16 %)

2013

9 (18 %)

Journals

 

Rheumatology journals

 

Annals of the Rheumatic Diseases

19 (37 %)

Arthritis & Rheumatism

17 (33 %)

Rheumatology

5 (10 %)

Arthritis Research & Therapy

1 (2 %)

General medical journals

 

Lancet

7 (14 %)

New England Journal of Medicine (NEMJ)

2 (4 %)

British Medical Journal (BMJ)

0 (0 %)

Journal of the American Medical Association (JAMA)

0 (0 %)

Funding

 

Pharmaceuticals

47 (92 %)

Academic/charity

4 (8 %)

Subjects

 

Randomised subjects per trial, median (IQR)

159 (102–249)

Mean age in years, median (IQR)

52 (50–54)

Mean disease duration in years, median (IQR)

7.6 (2.3–9.1)

Follow-up time in weeks, median (IQR)

24 (14–26)

12–23 weeks

14 (27 %)

24 weeks

24 (47 %)

>24 weeks

13 (26 %)