From: Potential for early warning of viral influenza activity in the community by monitoring clinical diagnoses of influenza in hospital emergency departments
Year
The highest and statistically significant correlation coefficient
P value
Lag of highest correlation (days)
2001
0.12
0.02
-11
2002
0.14
0.01
-18
2003
0.03
-4
2004
-3
2005
0.11
2001 to 2005
0.06