How to compare instrumental variable and conventional regression analyses using negative controls and bias plots.
How to compare instrumental variable and conventional regression analyses using negative controls and bias plots.
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DOI:
10.1093/ije/dyx014
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发表时间:
2017-12-01
影响因子:
7.7
通讯作者:
Windmeijer F
中科院分区:
文献类型:
--
作者:
Davies NM;Thomas KH;Taylor AE;Taylor GMJ;Martin RM;Munafò MR;Windmeijer F
There is increasing interest in the use of instrumental variable analysis to overcome unmeasured confounding in observational pharmacoepidemiological studies. This is partly because instrumental variable analyses are potentially less biased than conventional regression analyses. However, instrumental variable analyses are less precise, and regulators and clinicians find it difficult to interpret conflicting evidence from instrumental variable compared with conventional regression analyses. In this paper, we describe three techniques to assess which approach (instrumental variable versus conventional regression analyses) is least biased. These techniques are negative control outcomes, negative control populations and tests of covariate balance. We illustrate these methods using an analysis of the effects of smoking cessation therapies (varenicline) prescribed in primary care.
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影响因子:
7.2
作者:
Rassen, Jeremy A.;Brookhart, M. Alan;Glynn, Robert J.;Mittleman, Murray A.;Schneeweiss, Sebastian
通讯作者:
Schneeweiss, Sebastian
DOI:
10.1080/01621459.2012.734171
发表时间:
2012-12-01
影响因子:
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