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Table 1 Frequency of genotyping success in samples collected on filter-paper versus rapid diagnostic tests

From: Stable high frequencies of sulfadoxine–pyrimethamine resistance associated mutations and absence of K13 mutations in Plasmodium falciparum 3 and 4 years after the introduction of artesunate plus sulfadoxine–pyrimethamine in Ujjain, Madhya Pradesh, India

  Number (percent) of samples with successful genotyping Fisher’s exact p value comparing filter-paper and RDT extracted samples
All samples (n = 127) Filter-paper samples (n = 92) Rapid diagnostic tests (n = 35)
Pfcrt K76T 102 (80%) 87 (95%) 15 (43%) < 0.001
Pfmdr1 N86Y 115 (91%) 89 (97%) 26 (74%) < 0.001
Pfdhfr seq 87 (69%) 81 (88%) 6 (17%) < 0.001
Pfdhps seq 89 (70%) 82 (89%) 7 (20%) < 0.001
Pfdhfr seq or RFLP 108 104 (82%) 84 (91%) 20 (57%) < 0.001
Pfdhps seq or RFLP 436, 437, 540 105 (83%) 84 (91%) 21 (60%) < 0.001
K13 87 (69%) 73 (79%) 14 (40%) < 0.001