- Abstract:
-
BACKGROUND: Randomized trials are important for controlling selection biases, and where sufficient numbers of participants are involved, have the potential to yield reliable estimates of treatment effects. METHODS: We investigated trends in the number and size of randomized trials reported in general health care journals from 1948 to 1997. From the handsearching of 18 general health care journals we collected data on the number of reports of randomized trials in each journal per year, and th...
Expand abstract - Publication status:
- Published
- Publisher copy:
- 10.1093/ije/31.1.125
-
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- Journal:
- International journal of epidemiology
- Volume:
- 31
- Issue:
- 1
- Pages:
- 125-127
- Publication date:
- 2002-02-05
- DOI:
- EISSN:
-
1464-3685
- ISSN:
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0300-5771
- URN:
-
uuid:e3d14024-31da-4a2b-a682-bb35441de29a
- Source identifiers:
-
49410
- Local pid:
- pubs:49410
- Copyright date:
- 2002
Journal article
Number and size of randomized trials reported in general health care journals from 1948 to 1997.
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