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Table 4 Linear regression analysis of the predictive markers

From: Laboratory markers of disease severity in Plasmodium knowlesi infection: a case control study

Dependent variable

Independent variable

Coefficient (95% CI)

p value

R2

PCN count (PCN/μl)

Parasite count (% IRBC)

148.19 (95.1 – 201.27)

<0.0001

0.75

PCN count (PCN/μl)

Parasite count (parasites/μl)

0.005 (0.004 – 0.006)

0.0003

0.65

Platelet count (x 103 platelets/μl)

Parasite count (% IRBC)

−2.24 (−3.79 – -0.7)

0.005

0.07

Platelet count (x 103 platelets/μl)

Parasite count (parasites/μl)

−0.00007 (−0.0001 – -0.00001)

0.002

0.05

Platelet count (x 103 platelets/μl)

PCN count (PCN/μl)

−0.01 (−0.19 – -0.0009)

0.031

0.04

  1. 95% CI 95% confidence interval.
  2. PCN pigment-containing neutrophils.
  3. % IRBC % infected red blood cells.
  4. R2 square of correlation coefficient.