Table 4: Patients with NPH undergoing revision surgery within the year of implantation, reported for Q3a) va and Q3b) vp shunts and patients with NPH undergoing revision surgery in another year than in the year of implantation independent of the shunt type (Q4).
| Year |
How many patients with normal pressure hydrocephalus underwent revision surgery in that year? |
How many patients with NPH underwent revision surgery in that year but had undergone shunt implantation in another, earlier year? |
|
Q3a (va shunts) |
Q3b (vp shunts) |
Q4 (va + vp shunts) |
|
nBARMER |
incidence |
nGermany |
nBARMER |
incidence |
nGermany |
nBARMER |
incidence |
nGermany |
| 2003 |
0 |
0,00 |
0 |
6 |
0,08 |
65 |
9 |
0,12 |
97 |
| 2004 |
0 |
0,00 |
0 |
4 |
0,06 |
45 |
11 |
0,15 |
124 |
| 2005 |
3 |
0,04 |
35 |
16 |
0,23 |
184 |
17 |
0,24 |
196 |
| 2006 |
4 |
0,06 |
47 |
19 |
0,27 |
223 |
16 |
0,23 |
188 |
| 2007 |
1 |
0,01 |
12 |
11 |
0,16 |
131 |
30 |
0,44 |
357 |
| 2008 |
1 |
0,01 |
12 |
17 |
0,25 |
205 |
25 |
0,37 |
302 |
| 2009 |
1 |
0,01 |
12 |
15 |
0,22 |
182 |
27 |
0,40 |
328 |
| 2010 |
1 |
0,01 |
10 |
20 |
0,23 |
193 |
24 |
0,28 |
232 |
| 2011 |
1 |
0,01 |
10 |
18 |
0,21 |
172 |
31 |
0,36 |
297 |
| 2012 |
1 |
0,01 |
10 |
15 |
0,17 |
143 |
21 |
0,24 |
200 |
| mean |
1 |
0,02 |
15 |
14 |
0,19 |
154 |
21 |
0,28 |
232 |