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Table 2 Measures of therapeutic efficacy of AL before and after PCR correction

From: Efficacy and safety of artemether-lumefantrine for the treatment of uncomplicated malaria and prevalence of Pfk13 and Pfmdr1 polymorphisms after a decade of using artemisinin-based combination therapy in mainland Tanzania

Outcome

Kibaha

n (%; 95% CI)

Mlimba

n (%; 95% CI)

Mkuzi

n (%; 95% CI)

Ujiji

n (%; 95% CI)

Total

n (%; 95% CI)

PCR uncorrected

 Parasitaemia on day 3

0 (0; 0–4.5)

2 (2.3; 0.3–8.1)

5 (5.7; 1.9–12.9)

4 (4.7; 1.3–11.5)

11 (3.3;1.7–5.8)

 ETF

0 (0; 0–4.7)

0 (0; 0–4.2)

0 (0; 0–4.2)

1 (1.1%; 0–6.2)

1 (0.3; 0–1.7)

 LCF

12 (15.8; 8.4–26.0)

2 (2.3; 0.3–8.1)

3 (3.5; 0.7–9.9)

4 (4.6; 1.3–11.4)

21 (6.3; 3.9–9.4)

 LPF

6 (7.9; 3.0–16.4)

11 (12.8; 6.6–21.7)

11 (12.8; 6.6–21.7)

19 (21.8; 13.7–32.0)

47 (14.0; 10.5–18.2)

 ACPR

58 (76.3; 65.2–85.3)

73 (84.9; 75.5–91.7)

72 (83.7; 74.2–90.8)

63 (72.4; 61.8–81.5)

266 (79.4; 74.7–83.9)

 Total for per protocol

76

86

86

87

335

 Withdrawn

0 (0.0%)

1 (1.1)

1 (1.1)

1 (1.1)

3 (0.9%)

 Lost to follow-up

4 (5.0%)

1 (1.1)

1 (1.1)

0 (0)

6 (1.7%)

 Total at baseline

80

88

88

88

344

PCR corrected

 ETF

0 (0; 0–6.2)

0 (0; 0–4.9)

0 (0; 0–4.9)

1 (1.6;)

1 (0.4; 0–2.1)

 LCF

0 (0; 0–6.2)

0 (0; 0–4.9)

1 (1.4:)

0 (0; 0–5.6)

1 (0.4; 0–2.1)

 LPF

0 (0; 0–6.2)

0 (0; 0–4.9)

0 (0; 0–4.9)

0 (0; 0–5.6)

0 (0; 0–1.4)

 ACPR

58 (100; 93.8–100)

73 (100; 95.1–100)

72 (98.6; 92.6–100)

63 (98.4; 91.6–100)

266 (99.3; 97.3–99.9)

 Total for per protocol

58

73

73

64

268

 Withdrawn/lost to follow-up

4 (5.0%)

2 (2.2)

2 (2.2)

1 (1.1)

9 (2.6)

 Re-infection

15 (18.8)

11 (12.5)

9 (10.2)

20 (22.7)

55 (16.0)

 Unknown PCRa

3 (3.4)

2 (0.6)

4 (1.2)

3 (3.4)

12 (3.5)

 Total at baseline

80

88

88

88

344

 KM cumulative success rate

58 (100)

73 (100)

72 (98.6)

63 (98.4)

266 (99.3)

  1. ACPR: adequate clinical and parasitological response; ETF: early treatment failure; LCF: late clinical failure; LPF: late parasitological failure; PP: number of patients involve in the per protocol analysis; KM: Kaplan–Meier
  2. aThe samples could not be resolved after PCR because of inconsistent PCR results