. Author manuscript; available in PMC: 2009 Jul 24.

Published in final edited form as: Artif Intell Med. 2009 Jan 21;46(3):217–231. doi: 10.1016/j.artmed.2008.12.004

Table 4.

Decision rule sets for DT with PNN selected features (a) full, (b) pruned (level 1) and (c) pruned (level 2)

Rule #	If	and	and	and	and	then	Class	Membership
	DBP_avg (mm Hg)	pCO_2adm (mm Hg)	SBP_avg (mm Hg)	pCO_2min (mm Hg)	SBP_max (mm Hg)		Y (PVL = 1)/N (PVL = 0)	Class/total	%
(a) Full
1	<42	>31	<73	<28			N	3/4	75
2	<42	>31	<73	>28			Y	6/6	100
3	<42	>31	>73				N	7/7	100
4	<42	<31		>39			N	2/2	100
5	<42	<24		<39			N	2/3	67
6	<42	<31			<114		Y	16/17	94
		>24
7	<42	<31			>114		N	1/1	100
		>24
8	>42		<78				N	6/6	100
	<46
9	>46		<78				Y	5/8	63
10	>46		>78				N	14/15	93
Rule #	If	and	and	and	and	then	Class	Membership
	DBP_avg (mm Hg)	pCO_2adm (mm Hg)	SBP_avg (mm Hg)	pCO_2min (mm Hg)	SBP_max (mm Hg)		Y (PVL = 1)/N (PVL = 0)	Class/total	%

(b) Pruned (level 1)
1	<42	>31	<73	<28			N	3/4	75
2	<42	>31	<73	>28			Y	6/6	100
3	<42	>31	>73				N	7/7	100
4	<42	<31		>39			N	2/2	100
5	<42	<31		<39			Y	17/21	81
6	>42						N	23/29	79

Rule #	If	and	and	Class	Membership
	DBP_avg (mm Hg)	pCO_2adm (mm Hg)	SBP_avg (mm Hg)	Y (PVL = 1)/N (PVL = 0)	Class/total	%

(c) Pruned (level 2)
1	<42	>31	<73	Y	7/10	70
2	<42	>31	>73	N	7/7	100
3	<42	<31		Y	17/23	74
4	>42			N	23/29	79