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Mean EC50 and EC90 and their 95% confidence intervals (nmol l−1 cell medium mixture) for artemisinin and lumefantrine in paired isolates tested before treatment and after recrudescence.
| Drug | EC | n | Before treatment | After recrudescence |
|---|---|---|---|---|
| Artemisinin | EC50 | 9 | 23.5 (10.6–51.9) | 22.2 (8.8–55.8) |
| EC90 | 9 | 112.5 (34.7–364.2) | 206.3 (52.1–817.6) | |
| Lumefantrine | EC50 | 12 | 17.5 (8.1–37.7) | 15.9 (6.5–39.1) |
| EC90 | 12 | 100.9 (33.9–300.6) | 123.1 (34.3–442.1) |
