Table 6. Analysis of agreement between official and bed-side diagnostics of low muscle mass, sarcopenia, obesity and sarcopenic obesity.
Low Muscle Mass | Sarcopenia | Obesity | Sarcopenic Obesity | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Bed-side diagnostic | Female | Male | Bed-side diagnostic | Female | Male | Bed-side diagnostic | Female | Male | Bed-side diagnostic | Female | Male |
Low pFFM | 0.76* | 0.77* | Low pFFM + Low HGS | 0.81* | 0.81* | High pFMI | 0.77* | 0.83* | High pFMI + Low pFFM | 0.69* | 0.78* |
Low AFFM | 0.82* | 0.76* | Low AFFM + Low HGS | 0.86* | 0.80* | High FMIBCM | 0.83* | 0.77* | High pFMI + Low AFFM | 0.74* | 0.75* |
Low CC | 0.64* | 0.53* | Low CC + Low HGS | 0.71* | 0.59* | High WC/H | 0.60* | 0.67* | High FMIBCM+ Low pFFM | 0.73* | 0.73* |
High FMIBCM+ Low AFFM | 0.78* | 0.71* |
*Kappa coefficient of agreement between official and bed-side diagnostic, p≤0.05. Official low muscle mass diagnostic: for women, ALM<15kg; for men, ALM<20kg [10]. Official sarcopenia diagnostic: for women, ALM<15kg and HGS<16kg; for men, ALM<20kg and HGS<27kg [10]. Official obesity diagnostic: for women, FMI>13kg/m2; for men, FMI>9kg/m2[14]. Official sarcopenic obesity: for women, ALM<15kg and FMI>13kg/m2; for men, ALM<20kg and FMI>9kg/m2. For official diagnostics, body composition measures were performed with dual energy X-ray absorptiometry. Bed-side low muscle mass diagnostic: for women, pFFM≤35.02kg, AFFM≤15.87kg and CC≤35.5cm; for men, pFFM≤46.42kg, AFFM≤21.43kg and CC≤37cm. Bed-side sarcopenic diagnostic: for women, pFFM≤35.02kg and HGS<16kg, AFFM≤15.87kg and HGS<16kg, CC≤35.5cm and HGS<16kg; for men, pFFM≤46.42kg and HGS<20kg, AFFM≤21.43kg and HGS<20kg, CC≤37cm and HGS<20kg. Bed-side obesity diagnostic: for women, pFMI>12.20kg/m2, FMIBCM>12.58kg/m2 and WC/H>0.66; for men, pFMI>8.76kg/m2, FMIBCM>8.82kg/m2 and WC/H>0.60. Bed-side sarcopenic obesity: for women, pFMI>12.20kg/m2 and AFFM≤15.87kg, FMIBCM>12.58kg/m2 and pFFM≤35.02kg, FMIBCM>12.58kg/m2 and AFFM≤15.87kg; for men, pFMI>8.76kg/m2 and pFFM≤46.42kg, pFMI>8.76kg/m2 and AFFM≤21.43kg, FMIBCM>8.82kg/m2 and pFFM≤46.42kg, FMIBCM>8.82kg/m2 and AFFM≤21.43kg. AFFM, appendicular fat free mass; ALM, appendicular lean mass; CC, calf circumference; FMIBCM, fat mass index body composition monitor; HGS, hand grip strength; pFFM, predicted fat free mass; pFMI, predicted fat mass index. pFFM, AFFM, pFMI and FMIBCM data by bioelectrical impedance analysis. AFFM by Sergi equation [20]. pFFM and pFMI by Bellafronte equation [22]. FMIBCM by bioelectrical impedance from body composition monitor (Fresenius Medical Care).