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Table 2 Quality surveillance indicators of the AFP in the Marches (from February 1997 to December 2007).

From: Surveillance of acute flaccid paralysis in the Marches region (Italy): 1997–2007

INDICATORS 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
Incidence rate (reported cases/expected cases) 1
2/2
2
4/2
1
2/2
0.5
1/2
2.5
5/2
1
2/2
-
0/2
0.5
1/2
1.5
3/2
2
4/2
1.5
3/2
% AFP cases with follow-up at 60–90 days from report 100 75 50 100 100 100 - 100 100 75* 67
% AFP cases with initial clinical classification 100 100 100 0 100 100 - 100 100 100 100
% AFP cases with final clinical classification 100 75 0 0 100 50 - 100 100 75 67
% AFP cases with 1 stool sample within 14 days 0 50 50 0 20 100 - 0 33 25 67
% AFP cases with 2 stool samples within 14 days 0 50 50 0 0 100 - 0 33 25 33
% AFP with 2 stool samples at any time 0 75 100 0 60 100 - 0 67 75 33
% AFP with 1 stool sample at any time 50 25 0 0 20 0 - 0 0 0 67
% AFP 0 stool sample 50 0 0 100 20 0 - 100 33 25 0
SURVEILLANCE INDEX incidence X (% AFP cases with a sample within 14 days) 0 1 0.5 0 0.5 1 - 0 0.5 0.5 1
  1. * missing follow-up is referred to one case archived as non-polio by the MOH after clinical charts review.