Table 3

Calculation of CSF discriminant scores in two patients

Variable	Value	Log	Multiplication factor	Contribution to discriminant score	Cumulative score
Patient A
Intercept				−5.95	−5.95
Q albumin	4.30	1.4586	14.37	20.96	15.01
MNC	11.00	2.3979	1.15	2.75	17.76
IgM	0.30	−1.2040	6.13	−7.38	10.37
IgM index	0.07	−2.6593	−4.25	11.30	21.76
C3	1.70	0.5306	−21.02	−11.15	10.52
C4	0.60	−0.5108	−4.52	2.31	12.83
NSE	7.10	1.9604	6.02	11.80	24.63
S100	0.66	−0.4186	2.23	−0.93	23.70
Lactate	1832	7.5132	−2.66	−20.02	3.68
Discriminant score					+3.68
Allocation to RR
Patient B
Intercept					−5.95
Q albumin	16.90	2.8273	14.37	40.63	34.68
MNC	9.00	2.1972	1.15	2.52	37.19
IgM	2.40	0.8755	6.13	5.37	42.56
IgM index	0.10	−2.3026	−4.25	9.78	52.34
C3	7.00	1.9459	−21.02	−40.90	11.45
C4	3.20	1.1632	−4.52	−5.26	6.19
NSE	5.23	1.6536	6.02	9.95	16.14
S100	0.71	−0.3496	2.23	−0.78	15.36
Lactate	1971	7.5863	−2.66	−20.21	−4.85
Discriminant score					−4.85
Allocation to SP

MNC = Mononuclear cells; C3 = complement component C3; C4 = complement component C4; NSE = neuron specific enolase; Q albumin = CSF: peripheral blood albumin ratio.