| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10514357 | Journal of Clinical Epidemiology | 2010 | 7 Pages |
Abstract
Noncompliance can seriously affect validity of lifestyle trial results. Its occurrence should be prevented by taking measures during the design phase of a study. The instrumental variable method can give insight into confounding by noncompliance in randomized trials.
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Authors
Emmy M. Hertogh, A. Jantine Schuit, Petra H.M. Peeters, Evelyn M. Monninkhof,