Table 2.

Characteristics of control subjects

Patient	Sex	Disease	Number of leucocytes	IgG Index	Albumin quotient	BBB disturbance	OCB
19	m	Healthy	3	N.A.	N.A.	N.A.	N.A
20	m	Cognitive deficit	2	2.3	4.8	no	N.A
21	f	NPH	N.A.	N.A.	N.A.	N.A.	N.A
22	m	Cognitive deficit	1	0.45	6.9	no	N.A
23	f	NPH	1	0.47	5.9	no	N.A
24	m	Healthy	1	0.51	5.5	no	N.A
25	m	Bipolar disorder	1	0.47	5.7	no	N.A
26	f	Cognitive deficit, Depression	5	0.5	14.5	Yes	N.A
27	f	Migraine	2	0.45	8.2	yes	N.A
28	m	NPH	1	0.41	4.6	no	N.A
29	m	Bipolar disorder	1	0.52	7.1	no	N.A
30	m	Episode of Depression	1	0.51	4.9	no	N.A
31	m	Depression	< 1	0.39	13.3	no	N.A
32	f	Cognitive deficit	1	0.50	7.2	no	N.A

Table 2: Demographic and cerebrospinal fluid characteristics (CSF) of the control group. Number of leukocytes is presented in cells per μl CSF. Abbreviations: f female, m male, NPH Normal pressure hydrocephalus, MGMT O6-Methylguanin-DNA-Methyltransferase, IgG Index Immunoglobulin G index, BBB Blood brain barrier, OCB Oligoclonal bands, N.A. Not available