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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