Interim data monitoring to enroll higher-risk participants in HIV prevention trials
<p>Abstract</p> <p>Background</p> <p>Lower-than-expected incidence of HIV undermines sample size calculations and compromises the power of a HIV prevention trial. We evaluated the effectiveness of interim monitoring of HIV infection rates and on-going modification of re...
| Những tác giả chính: | , , , , , , |
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| Định dạng: | Bài viết |
| Ngôn ngữ: | English |
| Được phát hành: |
BMC
2009-06-01
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| Loạt: | BMC Medical Research Methodology |
| Truy cập trực tuyến: | http://www.biomedcentral.com/1471-2288/9/44 |