Table 1:

Patient data^a

Patient No.	Sex	Age (yr)	Etiology of CSH	Opening Pressure on LP
1	M	72	Idiopathic	Dry tap
2	M	23	Idiopathic	11 cm H2O
3	M	63	Idiopathic	Dry tap
4	F	40	Idiopathic	Dry tap
5	F	23	Idiopathic	N.M.
6	F	49	Idiopathic	Dry tap
7	F	59	Idiopathic	Dry tap
8	M	39	Post-LP	N.M.
9	F	33	Post-LP	N.M..
10	F	24	Post-LP	N.M.
11	M	70	Post-LP	N.M.
12	M	29	Post-LP	N.M.
13	M	18	VP shunt	N.M.
14	F	20	VP shunt	N.M.
15	F	18	VP shunt	N.M.
16	F	67	VP shunt	N.M.
17	F	44	VP shunt	N.M.
18	F	43	VP shunt	N.M.
19	F	35	VP shunt	N.M.

^a Patients were sorted according to the etiology of CSH.