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. Author manuscript; available in PMC: 2015 Sep 3.
Published in final edited form as: Epidemiol Methods. 2013 Sep;2(1):85–93. doi: 10.1515/em-2013-0007

Figure 2.

Figure 2

Relative efficiency vs control-to-case ratio by true hazard ratio. The solid curve T represents the graph of the equation mm+1 which is the asymptotic relative efficiency when β = 0 (i.e. a hazard ratio of 1) for m matched controls per case.