TABLE 1.

Baseline characteristics of isolates with which in vitro assay was attempted

IsolateTotal no. of isolates assayedTotal no. of isolates harvested (% of isolates)Median (range) delay from venipuncture to start of culture (h)Geometric mean parasitemia (no. of parasites/μl [95% CI])% of patients receiving antimalarial treatment in previous 2 mo (n/total)Median initial % of parasites at ring stage (IQR)a% of isolates with an RT ratio of ≥1 (n/total)
P. vivax 216175 (81)2.00 (0.33-11.0)7,338 (6,665-8,079)25 (39/158)36.5 (8-66)37 (73/196)
P. falciparum 277226 (82)2.96 (0.17-11.3)10,968 (9,862-12,187)14 (32/224)100 (100-100)98 (222/227)
  • a Not available for 20 isolates. IQR, interquartile range.