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Table 3 Relationship between Ex vivo RSA test results and patients clinical and biologic parameters at enrolment

From: In vitro delayed response to dihydroartemisinin of malaria parasites infecting sickle cell erythocytes

Count of P. f isolates

Failure of RSA test

In vitro RSA resistance test (RSA > 1%)

Significant in vivo resistance (RSA > 10%)

Failure of RSA test

Successful RSA test

p value

Sensitive (RSA survival < 1%)

Resistant (RSA survival ≥ 1%)

p value

Sensitive (RSA survival < 10%)

Resistant (RSA survival ≥ 10%)

p value

N = 26

N = 107

N = 87

N = 20

N = 107

N = 07

mean (N)

mean (N)

mean (N)

mean (N)

mean (N)

mean (N)

Age

13.00 (26)

11.00 (107)

0.892

11.00 (87)

12.00 (20)

0.740

11.00 (102)

13.00 (7)

0.492

ParaT0

21130 (26)

24070 (107)

0.454

30795 (87)

44778 (20)

0.006

22730 (102)

43900 (7)

0.076

CRP

96.00 (26)

44.00 (106)

0.151

42.00 (86)

67.50 (20)

0.843

41.00 (101)

96.00 (7)

0.524

GB

14.77 (25)

13.94 (100)

0.410

13.80 (80)

16.19 (20)

0.110

13.90 (95)

21.80 (7)

0.118

GR

03.07 (25)

04.32 (100)

0.016

04.37 (80)

3.81 (20)

0.013

04.37 (95)

01.63 (7)

0.002

HB

08.37 (26)

10.40 (105)

0.005

10.60 (85)

10.30 (20)

0.220

10.82 (100)

05.67 (7)

0.003

PLAQ

271.1 (25)

231.0 (100)

0.541

222.5 (80)

236.0 (20)

0.403

230.0 (95)

319.0 (7)

0.314

HCT

28.10 (25)

37.08 (100)

0.006

37.40 (80)

35.40 (20)

0.009

37.40 (95)

14.50 (7)

0.001

BMI

18.85 (26)

18.30 (105)

0.940

19.00 (87)

16.80 (20)

0.118

18.60 (100)

15.50 (7)

0.100

Temp

38.45 (26)

39.10 (107)

0.060

39.10 (87)

38.40 (20)

0.076

39.10 (100)

37.90 (7)

0.064

  1. Significant p values are given in bold
  2. N represents the number of isolates, the numbers in brackets represent the mean; RSA, ring-stage survival assay
  3. ParaT0, parasitaemia at inclusion (per µL); CRP GB Leukocytes level (× 1000/µL); GR Erythrocytes level (million/µL); HB Haemoglobin level (G/100 mL); PLAQ Platelets level (× 1000/µL); HCT Haematocrit (%); BMI Body Mass Index; Temp temperature (°C)