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. 2022 Jan 10;12:463. doi: 10.1038/s41598-021-04492-1

Table 2.

The cut-offs to define sarcopenia in Asian population.

Men Women Sarcopenia (n)
L3-SMA (cm2) / SMI (cm2/m2) 142.1/46.3 85.6/32.8 55 (7.1%; M:W = 48:7)
L1-SMA (cm2) / SMI (cm2/m2) 116.2/39.2 73.7/27.5 56 (7.2%; M:W = 46:10)
T12-ESMA (cm2) / ESMI (cm2/m2) 34.3/11.6 22.9/8.4 49 (6.3%; M:W = 39:10)
C-CWMA (cm2) / CWMI (cm2/m2) 114.2/36.2 74.1/26.6 68 (8.7%; M:W = 53:15)
AA-PMA (cm2) / PMI (cm2/m2) 40.2/13.2 19.2/6.9 77 (9.9%; M:W = 72:5)

SMA = skeletal muscle area (L3 = at 3rd lumbar vertebra level, L1 = at 1st lumbar vertebra level), SMI = skeletal muscle index (L3 = at 3rd lumbar vertebra level, L1 = at 1st lumbar vertebra level), T12-ESMA = erector spinae muscle area at 12th thoracic vertebra level, T12-ESMI = erector spinae muscle index at 12th thoracic vertebra level, C-CWMA = chest wall muscle area at carina level, C-CWMI = chest wall muscle index at carina level, AA-PMA = pectoralis muscle area just above aortic arch level, AA-PMI = pectoralis muscle index just above aortic arch level, M = men, W = women.