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Figure 2 | BMC Public Health

Figure 2

From: Estimating the magnitude and direction of bias in tuberculosis drug resistance surveys conducted only in the public sector: a simulation study

Figure 2

Bias in new cases. Percent bias in new cases as a function of the fraction of sensitive cases presenting to the public sector (x S ) and the fraction of resistant cases presenting to the public sector (x R ). 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 a N = 0.1; a P = 0.1; f SN = 0.1; f SP = 0.1; f RN = 0.25; f RP = 0.25; l = 0.2; q = 0.6; r N = 0.85; r P = 0.5.

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