Comparison of two nutritional assessment methods in gastroenterology patients

Table 3 Distribution of anthropometric measures and parameters of bioelectrical impedance analysis obtained by SGA (mean ± SD)

Parameters	SGA assessment		Significance t test
	Well	Malnourished
	n = 163	n = 136
MAC (cm)	28.28 ± 2.70	23.21 ± 2.06	F = 10.20, P = 0.002
MAMC (cm)	11.56 ± 12.62	8.23 ± 10.47	F = 73.22, P < 0.001
TSF (mm)	9.92 ± 2.47	5.25 ± 1.77	F =5.92, P = 0.02
Waist circumferences (cm)	90.16 ± 10.92	70.03 ± 8.01	F = 24.56, P < 0.001
Body mass index (kg/m2)	26.03 ± 4.53	18.17 ± 1.52	F = 58.36, P < 0.001
Total body water (kg)	42.62 ± 7.98	36.22 ± 9.32	F = 7.95, P = 0.005
Resistance of whole body (Ω)	545.86 ± 89.97	661.50 ± 98.89	F = 4.77, P = 0.03
Basal metabolic rate (kcal)	1625.14 ± 304.91	1344.62 ± 219.08	F = 9.06, P = 0.003
Impedance-index	55.3184 ± 13.00	46.4059 ± 9.33	F = 6.73, P = 0.01

Degrees of freedom = 297. MAC: Mid–arm circumferences; MAMC: Mid-arm muscle circumferences; TSF: Triceps skinfold thickness.