Table 3.

Logistic regression analysis of single markers in different anesthetic groups.

Anesthesia	Flow parameters	Range	Discrimination point	Lower border	Upper border	Ratio of CPA to total number
ISO	CBF %	9–74	62	12	112	26/32
	No. of PIFTs	1–12	2.8	−1.2	6.8	27/32
	Reperfusion %	65–302	75	6	144	26/32
	Amplitude %	4–39	41	−15	98	25/32
HALO	CBF %	17–76	56	−36	149	14/23
	No. of PIFTs	2–10	5.1	2.6	7.6	20/23
	Reperfusion %	67–196	103	21	186	17/23
	Amplitude %	5–37	20	−9	49	15/23
ISO+HALO	CBF %	9–76	59	0	118	41/55
	No. of PIFTs	1–12	3.8	0.2	7.4	45/55
	Reperfusion %	65–302	85	−1	171	41/55
	Amplitude %	4–39	31	−18	80	36/55

Discrimination point distinguishes between animals with and without severe cortical infarct. Borders are parameter values beyond which the model would predict an animal with at least 95% certainty. CBF, amplitude and reperfusion are expressed as percent of pre-ischemic baseline. CPA=correctly predicted animals.