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Table 4 BMD comparaison between groups for qualitatives variables

From: Prevalence and risk factors of low bone mineral density in spondyloarthritis and prevalence of vertebral fractures

  AP LS Femoral neck Total hip Lateral LS
BMD g/cm2 Mean ± SD p BMD g/cm2 Mean ± SD p BMD g/cm2 Mean ± SD p BMD g/cm2 Mean ± SD p
Gender
 Female 0.984 ± 0.135   0.778 ± 0.114   0.894 ± 0.113   0.79 ± 0.11  
   0.24   0.25   0.04   0.17
 Male 1.04 ± 0.19   0.807 ± 0.117   0.948 ± 0.122   0.82 ± 0.14  
Smoking status
 Never 0.980 ± 0.131   0.794 ± 0.121   0.934 ± 0.120   0.808 ± 0.141  
 ces >3 years 1.088 ± 0.265 0.47 0.797 ± 0.102 0.98 0.934 ± 0.109 0.78 0.831 ± 0.154 0.54
 ces ≤3 years 1.048 ± 0.578   0.804 ± 0.089   0.888 ± 0.098   0.892 ± 0.074  
 Current 1.016 ± 0.138   0.796 ± 0.127   0.921 ± 0.134   0.790 ± 0.120  
Vitamin D suppl
 Never, n (%) 1.015 ± 0.15   0.805 ± 0.093   0.927 ± 0.103   0.814 ± 0.128  
 Past, n (%) 1.016 ± 0.12   0.783 ± 0.138   0.921 ± 0.140   0.814 ± 0.148  
 Current, n (%) 1.029 ± 0.275 0.66 0.794 ± 0.130 0.58 0.927 ± 0.129 0.98 0.811 ± 0.141 0.93
  1. BMD bone mineral density, AP anterior-posterior, LS lumbar spine, ces cessation, suppl supplementation, p p value