Differences in Body Composition in Older People from Two Regions of Mexico: Implications for Diagnoses of Sarcopenia and Sarcopenic Obesity

Table 3

Association of potential and independent predictors of body BFM and their respective indices in older people by gender and region.

Dependent variables	Univariate association of potential predictors (p ≤ 0.2)	Independent predictors (p ≤ 0.05)
BFM/region
Northwestern	FFM, truncal fat, total body mass by DXA, height, grip strength, RMR, TEE, age, waist and hip circumference, gender, hypertension, hypothyroidism, and alcohol	Total body mass by DXA and FFM
Center	ASM, FFM, truncal fat, total body mass by DXA, height, TBMC, RMR, TEE, waist and hip circumference, and digestive problems	Truncal fat, TEE, FFM, ASM, Waist circumference, and TBMC
BFM/gender and region
Men/northwestern	ASM, FFM, truncal fat, total body mass by DXA, height, TBMC, RMR, TEE, waist and hip circumference, hypertension, and digestive problems	FFM and Total body mass by DXA
Men/center	ASM, FFM, truncal fat, total body mass by DXA, height, strength, RMR, TEE, age, waist and hip circumference, and digestive problems	Truncal fat and Hip circumference
Women/northwestern	ASM, FFM, truncal fat, total body mass by DXA, height, strength TBMC, RMR, TEE, age, waist and hip circumference, osteoporosis, and smoking	Total body mass by DXA, FFM, ASM, Smoking
Women/center	ASM, FFM, truncal fat, total body mass by DXA, height, TBMC, RMR, TEE, age, waist and hip circumference, and digestive problems	Truncal fat, RMR, FFM, Waist circumference, and ASM
BFMI/region
Northwestern	ASM, FFM, truncal fat, total body mass by DXA, height, strength TBMC, RMR, TEE, age, waist and hip circumference, family income, gender, employment status, hypertension, hypothyroidism, smoking, and alcohol	Hip circumference, Height, Total body mass by DXA, FFM, Strength, and ASM
Center	ASM, truncal fat, total body mass by DXA, height, strength TBMC, RMR, TEE, waist and hip circumference, gender, employment status, digestive problems, and alcohol	Truncal fat, height, TEE, ASM, Total body mass by DXA, TBMC and Waist circumference
BFMI/gender and region
Men/northwestern	FFM, truncal fat, total body mass by DXA, TBMC, RMR, TEE, waist and hip circumference, hypertension, type 2 diabetes, and digestive problems	Total body mass by DXA, FFM, and Waist circumference
Men/center	FFM, truncal fat, total body mass by DXA, strength, RMR, TEE, age, waist and hip circumference, educational level, and employment status	Total body mass by DXA, Hip circumference, FFM, and Education level
Women/northwestern	ASM, FFM, truncal fat, total body mass by DXA, TBMC, RMR, TEE, age, waist and hip circumference, hypertension, and osteoporosis	Total body mass by DXA, Waist and hip circumference, FFM, Hypertension and Osteoporosis
Women/center	ASM, FFM, truncal fat, total body mass by DXA, height, TBMC, RMR, TEE, waist and hip circumference, employment status, and digestive problems	Truncal fat, Height, RMR, FFM, ASM, and Waist circumference

BFM: body fat mass; BFMI: body fat mass index; FFM: fat-free mass; ASM: appendicular skeletal muscle mass; TBMC: total bone mineral content; RMR: rest metabolic rate; TEE: total expenditure energy; total body mass by DXA: total mass derived by dual energy X-ray absorptiometry.