The Impact of Low Muscle Mass Definition on the Prevalence of Sarcopenia in Older Australians
Table 1
Characteristics of subjects from the younger reference group and older adults (aged ≥ 65) in the NWAHS and FAMAS included in the analysis.
Characteristics
Younger reference population
Older study population
18 +< 40 years (FAMAS and CASA)
65+ years (NWAHS and FAMAS)
Men
mean (SD)
Women
mean (SD)
values
Men
mean (SD)
Women
mean (SD)
values
Age (SD), years
35.5 (5.3)
31.2 (7.3)
0.01
72.7 (5.7)
73.2 (6.0)
0.21
Weight (SD), kg
87.7 (15.9)
69.3 (15.3)
<0.001
81.8 (13.3)
69.4 (12.4)
<0.001
Height (SD), m
1.8 (0.1)
1.7 (0.1)
<0.001
1.7 (0.1)
1.6 (0.1)
<0.001
BMI (SD), kg/m2
27.8 (4.6)
25.5 (5.5)
0.03
27.9 (4.2)
27.8 (4.7)
0.79
% Fat
26.7 (8.5)
29.9 (11.6)
0.22
28.6 (6.9)
40.2 (6.9)
<0.001
ASM (SD), kg
28.6 (4.3)
18.4 (4.1)
<0.001
24.0 (3.2)
16.1 (2.4)
<0.001
SMI (SD), kg/m2
9.1 (1.1)
6.7 (1.2)
<0.001
8.2 (0.9)
6.4 (0.8)
<0.001
Chronic conditions
%
%
%
%
Cardiovascular Disease
1.7
0.0
0.54
24.1
17.8
0.019
Diabetes
1.7
0.0
0.54
24.4
19.1
0.050
Hypertension
27.6
4.5
0.02
77.3
69.7
0.007
Hypercholesterolemia
44.7
13.6
0.06
31.1
50.3
<0.001
Arthritis
0.9
0.0
0.66
33.7
61.5
<0.001
Number of prescribed medications
0
92.2
54.5
<0.001
15.1
6.3
0.02
1–3
7.8
45.5
37.1
39.7
4–6
0.0
0.0
25.8
32.9
≥7
0.0
0.0
22.0
21.1
SMI, skeletal muscle index; ASM, appendicular skeletal muscle mass; BMI, body mass index; SD, standard deviation; NS, not significant ; NA, not applicable; cardiovascular disease, ischemic heart disease, acute myocardial infarction, stroke, and angina; diabetes, self-reported, Dr diagnosed, FPG ≥ 7.0 mmol/L, or HbA1c ≥ 6.5%; hypertension, BP ≥ 140/90, or already on treatment; hypercholesterolaemia, serum total cholesterol ≥5.5 mmol/L; arthritis, self-reported osteo- or rheumatoid.
