Exhibit 2.11. Influenza Number of Discharges with a Diagnosis of Influenza, 1993-2005
  1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005
Discharges
Principal diagnosis 18,800 14,700 13,600 13,300 13,200 20,400 36,100 30,600 9,900 22,500 54,900 21,100 50,000
All-listed diagnoses 35,600 30,000 26,600 26,900 26,300 38,500 64,400 55,700 19,400 37,600 86,300 37,400 81,400
Standard Errors
Principal diagnosis 772 635 628 520 645 941 1,896 1,229 666 1,307 2,306 1,208 2,331
All-listed diagnoses 1,179 1,111 1,021 925 1,020 1,576 3,182 2,089 1,079 2,041 3,462 2,081 3,688
Source: AHRQ, Center for Delivery, Organization, and Markets, Healthcare Cost and Utilization Project, Nationwide Inpatient Sample, 1993-2005.

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