Body composition in older acute stroke patients after treatment with individualized, nutritional supplementation while in hospital

Table 5 The accuracy of the "MUAC test" to distinguish between BMI ≤ 20 kg/m² and BMI > 20 kg/m².

	MUAC cut-off	Sensitivity (95% CI)	Specificity (95% CI)	PPV (95% CI)	NPV (95% CI)
Both men and women	25.5 cm	0.91 (0.84-0.97)	0.90 (0.86-0.95)	0.59 (0.52-0.67)	0.98 (0.96-1.0)
Women	25.5 cm	1.0	0.86 (0.80-0.91)	0.52 (0.45-0.60)	1.0
Women	22.6 cm	0.91 (0.85-0.97)	0.96 (0.91-1.0)	0.77 (0.68-0.86)	0.99 (0.96-1.0)
Men	25.5 cm	0.80 (0.74-0.86)	0.96 (0.92-0.99)	0.73 (0.66-0.80)	0.97 (0.94-1.0)
Men	27.3 cm	0.90 (0.83-0.97)	0.83 (0.75-0.92)	0.45 (-0.07-0.56)	0.98 (0.94-1.0)

MUAC: mid-upper arm circumference; PPV: positive predictive value; NPV: negative predictive value.

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