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Table 1 Baseline characteristics of participants as at 1989

From: Abdominal fat and hip fracture risk in the elderly: The Dubbo Osteoporosis Epidemiology Study

  Hip fracture Non fracture P value Standardized difference (95% CI)
Women (n = 63) (n = 126)   
Age (y) 76.3 ± 7.1 76.4 ± 7.2 0.067b 0.0 (-0.3 to 0.3)
Height (cm) 155.8 ± 6.9 158.2 ± 6.1 0.008b -0.4 (-0.7 to -0.1)
Weight (kg) 55.6 ± 11.3 63.7 ± 10.9 <0.001b -0.7 (-1.0 to -0.4)
BMI (kg/m2) 22.8 ± 4.0 25.3 ± 4.7 0.001b -0.6 (-0.9 to -0.3)
Abdominal fata (%) 21.3 ± 9.2 25.5 ± 8.6 0.014b -0.5 (-0.8 to -0.2)
FNBMD (g/cm2) 0.64 ± 0.10 0.75 ± 0.14 <0.001b -0.9 (-1.2 to -0.5)
Home physical activity (METs) 85.5 ± 34.9 76.6 ± 30.6 0.075b 0.2 (-0.0 to 0.6)
Calcium intake (mg/d) 608 ± 401 580 ± 370 0.455c 0.1 (-0.2 to 0.5)
Duration of smoking (y) 40.8 ± 16.6 33.2 ± 14.4 0.204c 0.5 (-0.1 to 10.8)
Smoking intake (c/d) 13.8 ± 8.0 11.8 ± 7.5 0.384c 0.3 (-0.3 to 0.8)
Men (n = 26) (n = 52)   
Age (y) 75.2 ± 6.0 75.1 ± 5.9 0.329b 0.0 (-0.5 to 0.5)
Height (cm) 169.8 ± 8.0 172.2 ± 5.5 0.219b -0.4 (-0.9 to -0.2)
Weight (kg) 71.7 ± 15.5 75.2 ± 9.0 0.277b -0.3 (-0.8 to 0.2)
BMI (kg/m2) 24.7 ± 3.9 25.3 ± 2.2 0.442b -0.2 (-0.7 to 0.3)
Abdominal fata (%) 26.2 ± 10.2 24.8 ± 6.2 0.581b 0.2 (-0.4 to 0.7)
FNBMD (g/cm2) 0.64 ± 0.10 0.75 ± 0.11 0.002b -1.1 (-1.6 to -0.5)
Home physical activity (METs) 78.4 ± 37.4 78.5 ± 25.1 0.990b 0.0 (-0.5 to 0.5)
Calcium intake (mg/d) 546 ± 322 572 ± 242 0.450c -0.1 (-0.6 to 0.5)
Duration of smoking (y) 46.4 ± 13.4 36.2 ± 15.9 0.036c 0.7 (-0.01 to 1.3)
Smoking intake (c/d) 16.3 ± 5.5 16.4 ± 4.8 0.168c -0.01 (-0.7 to 0.7)
  1. Results are expressed as mean ± SD; BMI, Body mass index; FNBMD, femoral neck bone mineral density; METs, metabolic equivalents
  2. aAbdominal fat was expressed as percentage of the total soft tissue;
  3. bPaired t-test;
  4. cWilcoxon Signed Ranks test