Table 2

Descriptive characteristics, correlations observed between dependent variable with independent variables and comparison between groups
Variables Validation group 01 Estimation group Validation group 02 AMMxVariables p
(n = 84) (n = 60) (n = 41) (n = 101)
R Rho
Age (years) 67.30 ± 6.24 66.75 ± 5.81 68.49 ± 6.59 −0.18 - 0.164
Body mass (kg) 64.05 ± 10.20 64.34 ± 10.06 62.55 ± 10.40 0.76 - 0.390
Height (m) 1.50 ± 0.06 1.50 ± 0.05 1.51 ± 0.06 0.61 - 0.554
BMI (kg m-2) 28.20 ± 4.07 28.50 ± 4.20 27.37 ± 3.88 0.47 - 0.174
AMMBAUM (kg) 7.29 ± 1.80 - - - - -
AMMTANK (kg) 14.64 ± 1.90 - - - - -
BFDXA (%) 41.58 ± 6.51 42.20 ± 6.51 39.93 ± 6.27* 0.16 - 0.084
TMM KIM (kg) 16.70 ± 2.81 16.56 ± 2.67 16.93 ± 2.98 0.99 - 0.524
AMMDXA (kg) 15.15 ± 2.46 14.98 ± 2.34 15.33 ± 2.61 - - 0.481
AMMI DXA (kg m-2) 6.65 ± 0.82 6.62 ± 0.83 6.69 ± 0.85 0.86 - 0.651
Right arm P (cm) 29.70 ± 3.53 29.75 ± 3.67 29.35 ± 6.27 0.54 - 0.585
Left arm P (cm) 29.50 ± 3.63 29.64 ± 3.83 28.98 ± 3.48 0.54 - 0.382
Right forearm P (cm) 24.12 ± 1.67 24.10 ± 1.73 23.88 ± 1.97 0.70 - 0.553
Left forearm P (cm) 24.01 ± 2.09 23.98 ± 2.24 23.72 ± 2.08 0.68 - 0.547
Right leg P (cm) 35.26 ± 3.52 35.26 ± 3.83 35.07 ± 2.70 - 0.56 0.782
Left leg P (cm) 35.10 ± 3.41 35.16 ± 3.81 34.93 ± 2.51 - 0.53 0.716
Right thigh P (cm) 49.47 ± 8.84 49.75 ± 9.74 48.75 ± 5.72 - 0.48 0.555
Left thigh P (cm) 49.58 ± 7.58 49.51 ± 8.15 50.23 ± 6.78 0.53 - 0.647
Abdomen P (cm) 95.53 ± 12.52 96.34 ± 13.74 94.09 ± 7.68 - 0.34 0.299
Waist P (cm) 85.33 ± 9.15 85.91 ± 8.99 84.16 ± 8.08 0.45 - 0.320
Hip P (cm) 102.50 ± 8.52 102.66 ± 8.66 100.37 ± 7.46 0.42 - 0.170
Triceps S (mm) 27.67 ± 7.95 27.22 ± 8.57 24.76 ± 5.00 0.20 - 0.094
Biceps S (mm) 19.16 ± 7.98 20.08 ± 8.53 16.75 ± 5.92 0.25 - 0.053
Subscapularis S (mm) 28.04 ± 9.40 28.77 ± 9.34 26.37 ± 8.81 0.25 - 0.198
Axillary S (mm) 26.13 ± 8.46 26.06 ± 8.15 25.27 ± 8.38 0.19 - 0.796
Suprailiac S (mm) 32.13 ± 9.40 33.03 ± 9.64 30.00 ± 7.95 0.17 - 0.100
Abdomen S (mm) 38.27 ± 9.65 38.85 ± 10.38 36.35 ± 8.60 0.20 - 0.206
Thigh S (mm) 37.77 ± 12.30 37.65 ± 13.35 37.49 ± 10.68 0.07 - 0.950
Leg S (mm) 24.45 ± 8.60 24.97 ± 9.14 23.49 ± 6.90 0.02 - 0.384
Arm M (cm) 22.39 ± 2.56 22.27 ± 2.74 22.65 ± 2.24 - 0.54 0.467
Thigh M (cm) 37.67 ± 7.43 37.81 ± 8.02 37.71 ± 5.28 - 0.57 0.946
Leg M (cm) 27.50 ± 3.59 27.37 ± 3.89 27.62 ± 2.43 0.55 - 0.690
Waist M (cm) 75.24 ± 8.09 75.53 ± 8.34 74.73 ± 6.56 0.45 - 0.593
Abdomen M (cm) 83.51 ± 11.72 84.14 ± 12.92 82.68 ± 7.14 - 0.33 0.471
Handgrip (kg) 21.35 ± 5.21 21.03 ± 4.99 - 0.50 - -

Abbreviation: BMI, Body mass index, AMMBAUM, Appendicular muscle mass equation estimated by equation of Baumgartner et al. AMMTANK, Appendicular muscle mass estimated by equation of Tankó et al. BFDXA, Body fat percentage estimated by absorptiometry, TMMKIM, Total muscle mass estimated by equation of Kim et al. AMMDXA, Appendicular muscle mass estimated by DXA, AMMIDXA, Appendicular muscle mass index P Body perimeter, S Skinfold thickness, M Muscle circumference, R, Pearson correlation coefficient, Rho, Spearman correlation coefficient, p, probability observed in the comparison between groups.

* Significant difference p <0.05.

Pereira et al.

Pereira et al. Nutrition Journal 2013 12:92   doi:10.1186/1475-2891-12-92

Open Data