Table 1.
Characteristic | Percentage (95% CI) |
---|---|
Age group (years) | |
18–29 | 26% (24%–29%) |
30–49 | 35% (33%–38%) |
50–69 | 22% (20%–24%) |
≥70 | 17% (15%–19%) |
Race | |
White | 82% (79%–84%) |
Black | 15% (13%–18%) |
Other | 3% (2%–4%) |
Insurance status | |
Private | 53% (50%–56%) |
Medicare/Medicaid | 35% (32%–38%) |
Other | 12% (11%–14%) |
Visit setting | |
Physician's office | 67% (64%–69%) |
Hospital outpatient department | 8% (7%–10%) |
Emergency department | 25% (23%–27%) |
Provider specialtya | |
Family/general practice | 55% (50%–59%) |
Internal medicine | 24% (20%–29%) |
Urology | 7% (5%–8%) |
Other | 15% (11%–18%) |
US Census region | |
Northeast | 15% (12%–19%) |
Midwest | 23% (18%–29%) |
South | 44% (38%–50%) |
West | 18% (14%–23%) |
Metropolitan statistical area | |
No | 17% (11%–26%) |
Yes | 83% (74%–89%) |
Midlevel provider presentb | |
No | 90% (89%–92%) |
Yes | 10% (8%–11%) |
Time period | |
2002–2003 | 20% (17%–23%) |
2004–2005 | 20% (17%–22%) |
2006–2007 | 19% (17%–22%) |
2008–2009 | 21% (19%–24%) |
2010–2011 | 20% (18%–22%) |
Abbreviations: CI, confidence interval; NAMCS, National Ambulatory Medical Care Survey; NHAMCS, National Hospital Ambulatory Medical Care Survey; UTI, urinary tract infection.
a Data available for NAMCS only.
b Midlevel providers included nurse practitioners, physician assistants, and midwives. Midwives were not present in emergency department settings.