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. Author manuscript; available in PMC: 2012 Aug 15.
Published in final edited form as: Stat Med. 2011 May 11;30(18):2222–2233. doi: 10.1002/sim.4272

Figure 1.

Figure 1

Power curves for simulations of 100 cases and 100 controls on the unit square. Top left and top right assume a single point-source. Bottom left and bottom right assume two point-sources. Top left and bottom left assume an average residential duration of 4 years. Top right and bottom right assume an average residential duration of 10 years. These plots present the power curves for the M-statistic using the incubation based weighting system (–●–) compared to the M-statistic with uniform weights (–·◆–·)and the M-statistic using just the address at diagnosis (–▲–).