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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.