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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 3

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, 2001–2003*

Characteristic Visits, n in thousands % Distribution 95% CI Visits/10,000 persons/y† 95% CI
All visits 11,618 100.0 NA 410.7 368.7–452.7
Setting
Physician office 8,370 72.0 68.8–75.1 295.9 255.9–335.9
Outpatient department 986 8.5 7.1–10.2 34.9 29.1–40.6
Emergency department 2,262 19.5 17.3–21.9 80.0 72.3–87.7
Patient age, y
<2 576 5.0 3.4–7.3 721.5 434.2–1008.9
2–18 2,292 19.7 16.8–23.1 333.7 272.6–394.7
19–44 3,921 33.7 30.2–37.5 369.6 315.8–423.5
45–64 2,793 24.0 20.4–28.1 422.2 346.7–497.6
>65 2,036 17.5 13.7–22.1 599.2 431.9–766.6
Patient sex
Female 6,403 55.1 51.5–58.7 442.0 388.2–495.7
Male 5,216 44.9 41.3–48.5 377.9 329.1–426.7
Patient race
White 9,427 81.1 77.2–84.6 412.1 365.6–458.5
Black or African American 1,635 14.1 11.5–17.1 462.8 362.3–563.3
Other 556 4.8 3.0–7.7 296.1 149.3–442.8
Provider region
Northeast 2,323 20.0 16.1–24.5 435.3 333.9–536.8
Midwest 2,046 17.6 14.5–21.2 319.3 255.7–382.8
South 4,641 40.0 34.9–45.3 459.7 377.3–542.2‡
West 2,608 22.5 18.7–26.7 404.4 325.0–483.9
Provider statistical area
Metropolitan 9,775 84.1 79.3–88.0 425.4 374.9–476.0‡
Nonmetropolitan 1,843 15.9 12.0–20.7 347.1 249. 1–445.1
Payment
Private insurance 5,853 50.4 46.0–54.8 302.8 264.0–341.5
Medicare 2,049 17.6 13.8–22.2 591.2 425.6–756.7
Medicaid or SCHIP 1,889 16.3 13.4–19.7 675.3 530.9–819.7
Uninsured§ 990 8.5 6.9–10.4 242.9 192.9–293.0
Other¶ 837 7.2 5.6–9.3 # 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, 2001, July 1, 2002, and July 1, 2003; population estimates of metropolitan statistical area status are based on data from the 2001, 2002, and 2003 National Health Interview Survey, National Center for Health Statistics, adjusted to the US Census Bureau definition of core-based statistical areas; and denominator data for expected source of payment are based on the 2001, 2002, and 2003 National Health Interview Survey, National Center for Health Statistics.
‡95% CI for 1992–1994 and 2001–2003 overlap, but p<0.05.§Includes self-pay, charity, and no charge.
¶Includes Worker's Compensation, other payment, unknown, and blank.
#Denominator data not available.

*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, 2001, July 1, 2002, and July 1, 2003; population estimates of metropolitan statistical area status are based on data from the 2001, 2002, and 2003 National Health Interview Survey, National Center for Health Statistics, adjusted to the US Census Bureau definition of core-based statistical areas; and denominator data for expected source of payment are based on the 2001, 2002, and 2003 National Health Interview Survey, National Center for Health Statistics.
‡95% CI for 1992–1994 and 2001–2003 overlap, but p<0.05.§Includes self-pay, charity, and no charge.
¶Includes Worker's Compensation, other payment, unknown, and blank.
#Denominator data not available.

Main Article

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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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