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Chloroquine therapeutic failure (TF) rates in Sahumani and Burma Valley from 1995–2003.
| Therapeutic failure rate (n) | ||||
| 1995 | 1997/98* | 1999 | 2003 | |
| Burma Valley | 27.0% (37) | 15.2% (33) | 7.9% (93) | 26.5% (83) |
| Sahumani | 41.2% (51) | 30.3% (33) | 26.9% (65) | - |
| Odds ratio (95% CI) | 1.89 (0.76 – 4.72) | 2.4 (0.73 – 8.14) | 4.3 (1.54 – 11.85) | - |
| P | 0.170 | 0.142 | 0.003 | - |
*Burma Valley 1997 compared to Sahumani 1998.
