National Ambulatory Medical Care Survey: 2007 summary.
ABSTRACT This report describes ambulatory care visits made to physician offices in the United States. Statistics are presented on selected characteristics of the physician's practice, the patient, and the visit.
The data presented in this report were collected in the 2007 National Ambulatory Medical Care Survey (NAMCS), a national probability sample survey of visits to nonfederal office-based physicians in the United States. Sample data are weighted to produce annual national estimates of physician visits.
During 2007, an estimated 994.3 million visits were made to physician offices in the United States, an overall rate of 335.6 visits per 100 persons. About one-third of office visits, 34.9 percent, were made to practices with all or partial electronic medical records systems, while 85.1 percent of the visits were made to practices with all or partial electronic submission of claims. From 1997 to 2007, the percentage of visits to physicians who were solo practitioners decreased 21 percent. During the same period, visits to physicians who were part of a group practice with 6-10 physicians increased 46 percent. There were an estimated 106.5 million injury- or poisoning-related office visits in 2007, representing 10.7 percent of all visits. Medications were ordered, supplied, or administered at 727.7 million office visits, accounting for 73.2 percent of all office visits. In 2007, about 2.3 billion drugs were ordered, supplied, or administered, resulting in an average of 226.3 drug mentions per 100 visits.
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ABSTRACT: Stroke disparities in relation to the Stroke Belt have been studied extensively, but little is known about stroke mortality disparities outside the Stroke Belt. We examined the hypothesis that racial and rural-urban stroke disparities exist outside the Stroke Belt. A county-based population study of stroke mortality in adults, aged -25 years, for a seven-year period (2000-2006) was conducted in the non-Stroke Belt states. Data on stroke deaths were obtained from the Centers for Disease Control and Prevention, National Center for Health Statistics. Relative risks (RR) were estimated by multivariable Poisson regression, adjusting for known confounders. Stroke death rates. In the non-Stroke Belt states, African Americans had 1.44 times higher stroke death rates than Caucasians, 2.14 times higher than Asians/Pacific Islanders, and 1.56 times higher than American Indians (adjusted RR=1.44, P<.001; adjusted RR=2.14, P<.001; and, adjusted RR=1.56, P<.001, respectively). After adjusting for race, sex, and age, residents of rural counties outside the Stroke Belt still had a statistically significant 12% increase in stroke mortality compared to urban counties (adjusted RR=1.12, P<.001). Female sex and older age were also associated with higher stroke mortality. The present study revealed that racial and rural-urban disparities in stroke mortality exist in populations residing outside the Stroke Belt. Stroke mortality in the non-Stroke Belt states is disproportionately higher in African Americans and in rural area residents. African Americans are the only racial group in which urban residency is not associated with a decrease in stroke mortality.Ethnicity & disease 01/2011; 21(3):307-13. · 1.12 Impact Factor
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ABSTRACT: To examine the epidemiology of hypertension in women of reproductive age. Using NHANES from 1999-2008, we identified 5,521 women age 20-44 years old. Hypertension status was determined using blood pressure measurements and/or self-reported medication use. The estimated prevalence of hypertension in women of reproductive age was 7.7% (95% confidence interval (CI): 6.9%-8.5%). The prevalence of anti-hypertensive pharmacologic therapy was 4.2% (95% CI 3.5%-4.9%). The prevalence of hypertension was relatively stable across the study period; the age and race adjusted odds of hypertension in 2007-2008 did not differ significantly from 1999-2000 (odds ratio 1.2, CI 0.8 to 1.7, p = 0.45). Significant independent risk factors associated with hypertension included older age, non-Hispanic black race (compared to non-Hispanic whites), diabetes mellitus, chronic kidney disease, and higher body mass index. The most commonly used antihypertensive medications included diuretics, angiotensin-converting enzyme inhibitors (ACE), and beta blockers. Hypertension occurs in about 8% of women of reproductive age. There are remarkable differences in the prevalence of hypertension between racial/ethnic groups. Obesity is a risk factor of particular importance in this population because it affects over 30% of young women in the U.S., is associated with more than 4 fold increased risk of hypertension, and is potentially modifiable.PLoS ONE 01/2012; 7(4):e36171. · 3.73 Impact Factor