Table 3: Total numbers of Barmer patients who underwent shunt surgery for NPH resp. iNPH, calculated incidence and estimated total number for Germany.

Year NPH iNPH
nBARMER incidence nGermany nBARMER incidence nGermany
2003 64 0,86 689 0 0,00 0
2004 70 0,96 789 31 0,43 349
2005 115 1,62 1325 64 0,90 737
2006 141 2,03 1657 86 1,24 1010
2007 141 2,05 1680 101 1,47 1203
2008 121 1,78 1461 78 1,15 942
2009 167 2,46 2027 109 1,61 1323
2010 163 1,91 1575 117 1,37 1131
2011 144 1,67 1379 110 1,28 1053
2012 165 1,91 1573 118 1,36 1125
mean 129 1,73 1416 81 1,08 887