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Table 1 Characteristics of the samples used for microarray analysis

From: Genome-wide expression profiles of subchondral bone in osteoarthritis

  Osteoarthritis Nonosteoarthritis
Characteristic LT MT LT MT
OARSI 4.7 ± 1.34 20.8 ± 1.62* 3.00 ± 1.85 3.75 ± 1.67
BV/TV (mm3) 21.32 ± 7.47 65.39 ± 12.61* 24.41 ± 3.71 35.26 ± 10.12
SMI 1.56 ± 0.34 −1.69 ± 1.70* 0.99 ± 0.21 0.68 ± 0.73
Tb.Th (mm) 0.18 ± 0.04 0.36 ± 0.09* 0.19 ± 0.01 0.26 ± 0.08
Tb.N (1/mm) 1.16 ± 0.27 1.83 ± 0.33* 1.28 ± 0.21 1.36 ± 0.09
Tb.Sp (mm) 0.51 ± 0.12 0.25 ± 0.09* 0.56 ± 0.09 0.49 ± 0.03
Age (years) 71.10 ± 9.55 69.65 ± 9.55 38.40 ± 13.45 38.40 ± 13.45
Male sex (%) 33 34 36 32
Number 20 20 5 5
  1. Values presented as mean ± standard deviation. BV/TV, percent bone volume; LT, lateral tibial; MT, medial tibial; OARSI, histological scoring system to grade severity of osteoarthritis; SMI, structure model index; Tb.N, trabecular number; Tb.Sp, trabecular separation; Tb.Th, trabecular thickness. *P <0.001 considered significant comparing MT osteoarthritis versus LT osteoarthritis. P values were determined by two-tailed unpaired Student’s t test.