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Table 5 Methodological differences in the estimation of antimalarial resistance; the highest EC50 (ng/mL) (Brockman et al, 2000)

From: Overestimating resistance in field testing of malaria parasites: simple methods for estimating high EC50 values using a Bayesian approach

Isolate

Range of concentrations tested (ng/mL)

EC 50 Standard estimate

EC 50 "Bayesian" estimate

Overestimation by standard method (%)

Artesunate (A)

0.52 – 33.46

23.4

20.3

15%

Halofantrine (B)

1.02 – 65.32

51.8

41.2

26%

Mefloquine (C)

3.59 – 230

195

138

41%

Mefloquine (D)

3.59 – 230

197

138

43%

Chloroquine (E)

21.44 – 1,372

1065

801

32%

Chloroquine (F)

21.44 – 683

536

420

32%