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Table 2 Comparison between women according to BMI (N = 429)

From: Influence of obesity on vertebral fracture prevalence and vitamin D status in postmenopausal women

  BMI ≤ 25 25 < BMI ≤ 30 BMI > 30  
N = 75 N = 158 N = 196
Age in years: m (SD) 59.1 (7.9) 59.1 (7.9) 58.7 (7.7) NS
Weight in Kg: m (SD) 60.0 (10.1) 70.3 (9.8) 84.9 (8.3) <0.0001
Height in m : m (SD) 1.57 (0.08) 1.57 (0.05) 1.55 (0.05) <0.0001
BMI in Kg/m2: m (SD) 22.9 (1.5) 27.5 (1.3) 34.8 (1.4) <0.0001
Years since menopause: m (SD) 10.2 (8.8) 9.4 (9.3) 9.6 (8.3) NS
Number of pregnancies: m (SD) 5.0 (2.7) 4.6 (2.5) 4.9 (2.3) NS
History of traumatic fractures 13 (17.3) 16 (10.2) 28 (14.7) NS
Low dairy products intake: n (%) 32 (45.1) 75 (47.8) 97 (51.3) NS
Low physical activity: n (%) 65 (86.6) 137 (86.7) 172 (87.7) NS
Spine BMD in g/cm2: m (SD) 0.835 (0.2) 0.951 (0.1) 1.022 (0.2) <0.0001
Spine T-score: m (SD) −2.4 (1.3) −1.4 (1.2) −0.8 (1.3) <0.0001
Total hip BMD in g/cm2: m (SD) 0.808 (0.2) 0.855 (0.5) 0.913 (0.4) 0.011
Total hip T-score: m (SD) −1.7 (1.1) −1.1 (1.0) −0.5 (1.1) <0.0001
Osteoporosis any site : n (%) 31 (41.3) 38 (24.9) 20 (10.0) <0.0001
Grade 1 VFs prevalence (%) 28 (37.3) 55 (34.8) 86 (45.3) NS
Grade 2/3 VFs prevalence (%) 17 (22.3) 33 (20.9) 26 (13.7) <0.0001
SDI: m (SD) 0.54 (2.1) 0.92 (2.4) 0.51 (1.9) NS
Vitamin D in ng/mL: m (SD) 12.9 (9.1) 14.4 (11.6) 15.9 (13.2) NS
Vitamin D ≤ 20 ng/mL: n (%) 58 (77.3) 122 (77.8) 149 (78.4) NS
Vitamin D ≤ 10 ng/mL: n (%) 42 (56.0) 80 (50.8) 99 (50.5) NS
  1. BMI body mass index, BMD lumbar spine BMD, SDI spinal disease index