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Table 1 Demographic, clinical and laboratory characteristics of AS patients and controls

From: Neutrophil/lymphocyte and platelet/lymphocyte ratios as potential markers of disease activity in patients with Ankylosing spondylitis: a case-control study

 AS patients (n = 132)Control (n = 81)P value a
Age (years)37.61 ± 10.035.98 ± 9.80.249
Male, n (%)120 (90.9)73(90.1)0.849
Disease duration (years)9.54 ± 7.3
BASDAI3.51 ± 1.66
White blood cell count (109/L)8.15 ± 1.757.31 ± 1.49< 0.001
Neutrophil count (109/L)4.85 ± 1.454.51 ± 0.980.066
Lymphocyte count (109/L)2.71 ± 0.832.30 ± 0.51< 0.001
Platelet count (109/L)288.57 ± 89.47263.08 ± 50.560.020
NLR1.99 ± 1.002.02 ± 0.550.801
PLR117.12 ± 56.51119.24 ± 32.490.759
ESR (mm/hr.)22.78 ± 21.038.24 ± 5.67< 0.001
  1. Values are means ± SD or numbers and percentages. a, student t-test; AS, ankylosing spondylitis; BASDAI, Bath Ankylosing Spondylitis Activity Index; ESR, erythrocyte sedimentation rate; n, number; NLR, neutrophil/lymphocyte ratio; PLR, platelet/lymphocyte ratio; P value, probability value (< 0.05)