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Table 4 Features of anaemic patients who recovered from their anaemia and had late fall in haematocrit below 30% (Pattern 3)a

From: Therapeutic efficacy and effects of artemisinin-based combination treatments on uncomplicated Plasmodium falciparumĀ malaria -associated anaemia in Nigerian children during seven years of adoption as first-line treatments

Patient (gender, age)

Year of enrolment

Parasitaemia (Ī¼Lāˆ’1)

Enrolment HCT (%)

Antimalarial treatment

PCT (day)

Nadir HCT1 (%) [day]

Nadir HCT2 (%) [day]

HCT on day 42 (%)

AnRT1 (day)

AnRT2 (day)

AUC1

AUC2

FIH/1 000 parasites cpb

Total of mg/kg dose of AA

Total of mg/kg dose of AL

Artesunate

Amodiaquine

Artemether

Lumefantrine

41 (F, 5y)

2011

315 429

28

AA

1

23 [3]

27[35]

33

14

7

25.82

6.17

0.0095

11.5

31.15

NA

NA

12 (M, 1.5y)

2014

98 327

25

AA

1

19 [3]

26[35]

28

14

NA

72.93

NA

0.0305

9.38

25.3

NA

NA

33 (M, 2.5y)

2010

70 823

28

AA

1

24 [3]

28[35]

28

14

NA

30.01

NA

0.0424

12.5

33.75

NA

NA

219 (F, 3y)

2008

31 640

23

AA

1

23 [0]

28[21]

31

14

7

49.83

4.67

0.0032

13.64

36.82

NA

NA

39 (M, 4.9y)

2010

183 741

29

AA

1

25 [2]

28[42]

28

7

Ā 

12.44

NA

0.0054

8.82

23.82

NA

NA

15 (M, 1.2y)

2008

72 815

27

AL

1

26 [1]

28[28]

33

7

21

11.06

17.04

0.0137

NA

NA

17.4

102

20 (M, 5y)

2008

110 728

28

AA

2

17 [2]

28[35]

30

7

7

35.60

4.67

0.0542

10

27

NA

NA

Mean

Age (3.3y)

Ā 

100 418b

26.86

Ā 

1.14

22.43

27.6

30.14

11

10.5

33.95

8.14

0.023

10.98

29.64

17.4

102

  1. AA artesunate-amodiaquine, AL artemether-lumefantrine, HCT Haematocrit, PCT Parasite clearance time, AnRT anaemia recovery time, AUC area under curve of deficit in haematocrit from 30% versus time, FIH fall in haematocrit, cpb cleared from peripheral blood, NA Not Applicable, AUC 1 AUC of anaemia at presentation, AUC 2 AUC of late fall in haematocrit; a: many of these children were relatively asymptomatic when late-appearing anaemia occurred; b: Geometric mean parasite density
  2. No patient Reported symptoms during late-appearing anaemia