Bias in new cases. Percent bias in new cases as a function of the fraction of sensitive cases presenting to the public sector (xS) and the fraction of resistant cases presenting to the public sector (xR). Blue represents parameter space in which public sector surveys overestimate total resistance and red represents parameter space in which public sector surveys underestimate total resistance; more saturated colors indicate greater bias. The values on the lines indicate percent bias. Results reported for models at equilibrium with aN = 0.1; aP = 0.1; fSN = 0.1; fSP = 0.1; fRN = 0.25; fRP = 0.25; l = 0.2; q = 0.6; rN = 0.85; rP = 0.5.
Cohen et al. BMC Public Health 2010 10:355 doi:10.1186/1471-2458-10-355