Table 2. Cost by severity within three diagnoses.

Diagnoses	APS range 1	Number	Mean TISS 2 Points	Standard error of mean
Drug overdose
	0-4	43	9.8	0.91
	5-9	44	12.8	1.10
	10 +	62	64.5	10.64
Peripheral vascular surgery
	0-4	164	29.7	2.34
	5-9	218	43.5	3.43
	10 +	104	98.8	9.79
Diabetics
	0-4	11	21.5	3.60
	5-9	23	25.4	4.58
	10 +	84	61.7	9.10

¹Acute physiology score.

²Therapeutic intervention scoring system.