Table 2 Estimated counts of influenza-attributable office visits for respiratory (broadly defined), respiratory and cardiorespiratory causes in the United States, 2001–02 through 2008–09

 2001–02

12,365,184

(11,665,801–13,064,541)

10,475,575

(9,816,954–11,134,170)

10,194,445

(9,522,888–10,866,003)

 2002–03

16,803,325

(15,883,426−17,723,224)

14,701,362

(13,836,458–15,566,240)

14,554,184

(13,664,649–15,443,744)

 2003–04

13,618,103

(12,767,860–14,468,321)

11,354,261

(10,556,090–12,152,431)

11,258,742

(10,426,957–12,090,553)

 2004–05

15,814,272

(15,089,234–16,539,284)

13,605,842

(12,927,419–14,284,264)

13,643,186

(12,922,048–14,364,325)

 2005–06

11,795,968

(11,243,720–12,348,242)

10,071,294

(9,555,005–10,587,610)

10,213,174

(9,660,795–10,765,500)

 2006–07

14,628,435

(13,601,384–15,655,487)

12,634,875

(11,674,057–13,595,718)

12,989,309

(11,977,996–14,000,621)

 2007–08

21,896,301

(20,932,203–22,860,399)

18,921,369

(18,020,955–19,821,782)

19,535,453

(18,554,039–20,516,840)

 2008–09

8,683,598

(8,167,552–9,199,670)

7,535,656

(7,053,640–8,017,619)

7,780,771

(7,262,485–8,299,004)

 Average

14,450,648

−

12,412,529

−

12,521,158

−

 Std dev

3,931,783

−

3,447,860

−

3,578,048

−

 2006–07

708,335

(354,590–1,062,080)

615,166

(286,572–943,759)

265,729

(0–682,663)

 2007–08

1,078,071

(535,820–1,620,322)

936,707

(432,929–1,440,484)

396,427

(0–1,026,793)

 2008–09

376,923

(185,672–568,173)

327,184

(149,709–504,659)

132,283

(0–343,834)

 Average

721,110

−

626,352

−

264,813

−

 Std dev

350,749

−

304,915

−

132,074

−