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Table 3 Laboratory characteristics of Nigerian children with PRDs

From: Spectrum of paediatric rheumatic diseases in Nigeria

Laboratory abnormalities Total number of PRD cases tested n (%)
 Anaemia(haematocrit < 33%) 50 37(74)
 Elevated ESR(ESR > 20 mm/h) 50 42(84)
 Elevated CRP(CRP > 8 mg/l) 37 32(86.4)
 Elevatedferritin (Ferritin > 150 μg/l) 37 27(72.9)
 Elevated RF(Rh-factor > 30iu/ml) 7 2(28.6)
 Positive Anti-nuclear antibody 48 23(47.9)
 Positive Anti-ENA antibody 16 13(81.2)
Laboratory parameters in SARDs Mean(±SD) Range
 Haematocrit (%) 27.7(±7.5) 14–42
 ESR (mm/h) 72.9(±37.4) 4–142
 WBC (/μL) 11,081(±8,742) 1,350–45,600
 Platelet count (/μL) 336,166(±191,938) 81,200–820,000
 CRP (mg/L) 8.1(±4.9) 3–21
 Ferritin(mg/dl) 548.5(±273.4) 62–2,140
  1. PRD paediatric rheumatic disease, ESR erythrocyte sedimentation rate, CRP C - reactive protein, ENA Extractable nuclear antigen, WBC white blood cell. Normal reference range from our laboratory: Haematocrit-33-45%, ESR-0-20 mm/h, WBC-4500-13500/μL, Platelet count- 150,000-450,000/μL,CRP-0-8 mg/l, ferritin-10-150 μg/l
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