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Volume 12, Number 11—November 2006
Research

Staphylococcus aureus–associated Skin and Soft Tissue Infections in Ambulatory Care

Linda F. McCaig*Comments to Author , L. Clifford McDonald†, Sanjay Mandal†, and Daniel B. Jernigan†
Author affiliations: *Centers for Disease Control and Prevention, Hyattsville, Maryland, USA; †Centers for Disease Control and Prevention, Atlanta, Georgia, USA

Main Article

Table 2

Average annual number, percent distribution, and rate of ambulatory care visits for selected skin and soft tissue infections, by selected patient, provider, and visit characteristics, United States, 1992–1994*

Characteristic Visits, in thousands (n) % Distribution 95% CI Visits/10,000 persons/y† 95% CI
All visits 9,601 100.0 NA 376.3 340.4–412.3
Setting
Physician office 7,481 77.9 75.5–80.4 293.2 260.0–326.4
Outpatient department 558 5.8 4.7–7.0 21.9 17.2–26.5
Emergency department 1,562 16.3 14.4–8.2 61.2 55.0–67.5
Patient age, y
<2 455 4.7 3.4–6.1 569.0 404.8–733.1
2–18 2,050 21.4 18.3–24.4 323.2 265.0–381.4
19–44 3,514 36.6 33.4–39.8 340.8 297.7–384.0
45–64 1,842 19.2 16.5–21.9 371.6 309.9–433.3
>65 1,741 18.1 15.5–20.8 561.0 461.8–660.2
Patient sex
Female 5,351 55.7 52.0–59.5 408.5 361.2–455.8
Male 4,250 44.3 40.5–48.0 342.4 297.9–386.8
Patient race
White 8,186 85.3 82.1–88.5 386.6 345.8–427.4
Black or African American 1,158 12.1 9.8–14.3 360.0 289.6–430.3
Other 256‡ 2.7‡ 0.6–4.7 229.4‡ 49.7–409.1
Provider region
Northeast 2,026 21.1 17.2–25.0 403.4 320.1–486.7
Midwest 2,697 28.1 23.7–32.5 433.3 352.0–514.5
South 2,810 29.3 25.0–33.6 326.9 270.2–383.7§
West 2,068 21.5 17.7–25.4 364.8 291.9–437.7
Provider statistical area
Metropolitan 7,148 74.5 67.9–81.0 357.9 322.8–393.0§
Nonmetropolitan 2,454 25.6 19.0–32.1 442.8 306.2–579.5
Payment
Private insurance 4,601 47.9 44.1–51.8 NA
Medicare 1,413 14.7 12.4–17.0 NA
Medicaid or SCHIP 1,409 14.7 12.5–17.0 NA
Uninsured# 1,575 16.4 13.3–19.5 NA
Other** 603 6.3 4.8–7.8 NA

*Numbers may not add to totals due to rounding. CI, confidence interval; NA, not applicable; SCHIP, State Children's Health Insurance Program.
†Visit rates for age, sex, race, and region are based on the average of US Census Bureau estimates of the civilian noninstitutional population of the United States, for July 1, 1992, July 1, 1993, and July 1, 1994.
‡Does not meet standard of reliability or precision.
§95% CI for 1992–1994 and 2001–2003 overlap, but p<0.05.
¶Denominator data not available.
#Includes self-pay, charity, and no charge.
**Includes Worker's Compensation, other payment, unknown, and blank.

*Numbers may not add to totals due to rounding. CI, confidence interval; NA, not applicable; SCHIP, State Children's Health Insurance Program.
†Visit rates for age, sex, race, and region are based on the average of US Census Bureau estimates of the civilian noninstitutional population of the United States, for July 1, 1992, July 1, 1993, and July 1, 1994.
‡Does not meet standard of reliability or precision.
§95% CI for 1992–1994 and 2001–2003 overlap, but p<0.05.
¶Denominator data not available.
#Includes self-pay, charity, and no charge.
**Includes Worker's Compensation, other payment, unknown, and blank.

Main Article

Page created: October 14, 2011
Page updated: October 14, 2011
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The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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