Table 2.

Summary of lab test feature selection for each ALSFRS item.

		Speech	Salivation	Swallowing	Handwriting	Cutting Food & Eating	Dressing/Hygiene	Turning in Bed	Walking	Climbing Stairs	Respiratory
	Basophil	✓	✓	✓		✓	✓	✓	✓	✓	✓
	Eosinophil	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
	Lymphocyte	✓	✓	✓		✓			✓	✓	✓
	Monocyte	✓	✓	✓			✓	✓		✓	✓
	Albumin	✓	✓	✓		✓	✓	✓		✓	✓
	Alkaline phosphatase	✓	✓	✓		✓	✓	✓	✓	✓	✓
	ALT	✓	✓	✓		✓	✓	✓	✓	✓	✓
	AST	✓	✓	✓		✓	✓	✓	✓	✓	✓
	Bicarbonate
	Bilrubin	✓	✓	✓		✓	✓		✓	✓	✓
	BUN	✓	✓	✓		✓	✓	✓	✓	✓	✓
	Calcium	✓	✓	✓		✓	✓	✓		✓	✓
	Chloride	✓	✓	✓		✓	✓	✓	✓	✓	✓
Laboratory Variables	CK	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
	Creatinine	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
	Glucose	✓				✓	✓			✓	✓
	Hematrocrit		✓	✓		✓	✓	✓	✓	✓	✓
	Hemoglobin	✓	✓	✓		✓	✓			✓	✓
	Phosphorus	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
	Platelets					✓	✓
	Potassium		✓	✓		✓	✓		✓	✓	✓
	Protein	✓	✓	✓		✓	✓	✓		✓	✓
	Red blood cells
	Sodium	✓	✓	✓			✓	✓			✓
	White blood cells