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Table 1 Characteristics of enrolled patients

From: Lack of significant recovery of chloroquine sensitivity in Plasmodium falciparum parasites following discontinuance of chloroquine use in Papua New Guinea

Characteristics 2016 (N = 123) 2017 (N = 134) 2018 (N = 111)
Sampling clinics; n (%)
 Wirui urban 89 (72.4) 40 (29.9) 57 (51.4)
 Town 34 (27.6) 94 (70.1) 54 (49.6)
Age; n (%)
 0–4 2 (1.6) 5 (3.7) 3 (2.7)
 5–9 13 (10.6) 19 (14.2) 19 (17.1)
 10–19 43 (35) 55 (41) 44 (39.6)
 20–29 28 (22.8) 32 (23.9) 24 (21.6)
 30–39 15 (12.2) 9 (6.7) 8 (7.2)
 40–49 11 (8.9) 6 (4.5) 7 (6.3)
 50 9 (7.3) 7 (5.2) 5 (4.5)
 Unknown 2 (1.6) 1 (0.7) 1 (0.9)
 Average 23.9 19.8 20.5
Sex; n (%)
 Male 53 (43.1) 57 (42.5) 57 (51.4)
 Female 69 (56.1) 76 (56.7) 53 (47.7)
 Unknown 1 (0.8) 1 (0.8) 1 (0.9)
Pretreatment; n (%)
 Artemether 3 (2.4) 4 (3.0) 5 (4.5)
 Artemether + lumefantrine 0 (0) 2 (1.5) 1 (0.9)
 Artemether + lumefantrine + primaquine 0 (0) 1 (0.8) 0 (0)
 Chloroquine 2 (1.6) 5 (3.7) 3 (2.7)
 Primaquine 1 (0.8) 0 (0) 0 (0)
Parasitemia; (%)
 Median (IQR) 0.14% (0.02%, 0.52%) 0.33% (0.1%, 0.88%) 0.12% (0.1%, 0.57%)
MOI; n
 1 98 113 ND
 2 13 9 ND
 3 1 0 ND
 Mean 1.13 1.07 ND
  1. IQR interquartile range, ND not determined