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Table 1 Hospitalizations for S. aureus skin and soft tissue infections (SA-SSTI) in the U.S. by year and age group, 2001–2009

From: Incidence and cost of hospitalizations associated with Staphylococcus aureusskin and soft tissue infections in the United States from 2001 through 2009

Year
  2001 2002 2003 2004 2005 2006 2007 2008 2009
Description Number SE Number SE Number SE Number SE Number SE Number SE Number SE Number SE Number SE
All SA hospitalizations 410,768 8,489 449,232 11,032 493,199 11,636 545,022 12,530 6389,856 15,794 656,181 15,532 677,580 15,104 715,596 17,397 697.248 15628
All SA-SSTIs hospitalizations 160,811 3,910 180,748 5,170 208,219 5,579 247,821 6,510 310,982 8,861 332,378 8,989 345,706 8,249 364,452 9,677 358,212 9,143
SA-SSTIs hospitalizations by age-group                   
0-17 years 8,191 908 11,759 2,397 14,806 1,570 20,865 2,167 36,771 4,614 33,373 2,714 35,622 2,969 38,289 3,581 34,076 2,697
18-44 years 33,480 1,115 40,838 1,623 51,773 1,864 68,493 2,318 89,811 3,459 99,431 3,500 98,636 2,975 99,368 3,263 93,018 2,799
45-64 years 48,857 1,334 57,117 1,683 66,325 ,1825 79,827 2,287 96,897 3,020 107,279 3,123 113,515 3,128 120,949 3,444 124,924 3,501
65-74 years 26,737 830 27,662 875 29,014 893 31,535 946 34,956 1,149 37,784 1,099 40,219 1,058 43,720 1,193 44,585 1,283
75 plus years 43,535 1,355 43,368 1,429 46,275 1,483 46,993 1,407 52,470 1,748 54,449 1,730 57,666 1,638 61,999 1,865 61,322 1,847
  1. Notes.
  2. Data source: The Nationwide Inpatient Sample, Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.
  3. SA-SSTIs hospitalizations were defined by any S. aureus infection codes concurrent with any skin and soft tissue infection codes. S. aureus hospitalizations were identified based on the following ICD-9-CM codes: S. aureus septicemia (0.38.11 and 038.12), S. aureus infection (041.11 and 041.12), and S. aureus pneumonia (482.41 and 482.42). Some ICD-9 codes for S. aureus infections were not available during the entire study period but added as new codes in October 2008 (i.e., 038.12, 041.12, and 482.42).
  4. Skin and soft tissue infections were identified based on the following ICD-9-CM codes: carbuncle (680.xx), cellulitis and abscesses (681.xx and 682.xx), erysipelas (035.xx), impetigo (684.xx), mastitis (611.0.x and 771.5×), other (7048.x, pyoderma dermatitis (686.xx), pressure ulcer (707.xx), infection due to internal prosthetic device, implant, & graft (996.6×), Postoperative infection (998.5×), other infection; as complication of medical care (9993.x), or non-healing surgical wound (998.83).
  5. SA-SSTIs hospitalizations were defined by any S. aureus infection codes concurrent with any skin and soft tissue infection codes.