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Table 1 Characteristic and demographics of the subjects

From: Association between sarcopenia and low back pain in local residents prospective cohort study from the GAINA study

  Normal Pre-sarcopenia Sarcopenia
(n = 166) (n = 38) (n = 12)
Age (years) 73.0 ± 7.8 72.2 ± 8.5 84.9 ± 5.0 **
Gender (M:F) 63:103 11:27 5:7
%YAM (%) 78.9 ± 13.7 78.3 ± 15.9 63.8 ± 8.7 **
BMI (Kg/m2) 22.8 ± 2.3 18.9 ± 2.0** 20.6 ± 2.4*
Smoking habit (%) 25.6 26.3 8.3
Alcohol habit (%) 30.1 42.1 25.0
  1. (Mean ± SD)
  2. Steel-Dwass *P < 0.05,**P < 0.01
  3. %YAM: the percentage of young adult mean
  4. BMI: Body mass index
  5. M:male
  6. F: female
  7. Sarcopenia was noted in 12 of 216 subjects (5.5%). %YAM and BMI were significantly lower in the sarcopenia group than in the Normal groups. BMI in the Pre-sarcopenia group were significantly lower in the other groups. %YAM and BMI were significantly lower in the sarcopenia group than in the other groups (Steel-Dwass test, *: P < 0.05, **:P < 0.01). There were no significant differences among the three groups about smoking habit and alcohol habit (Chi-square for independence test, m × n contingency table)