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Objective: The purpose of this study was to produce prevalence estimates and identify determinants of variability in chiropractic use in the US adult population., Methods: The Medical Expenditure Panel Survey was used to estimate prevalence for the adult population and subpopulations according to several sociodemographic, geographic, and health characteristics. Multivariable logistic regression model was used to explore the effects of the independent predictors on chiropractic use., Results: The 2008 chiropractic prevalence of use was estimated to be 5.2% (95% confidence interval, 4.7-5.6). The adjusted odds of using chiropractic services were approximately 46% less for Asians, 63% less for Hispanics, and 73% less for blacks compared with whites; 21% less for men than women; and 68% higher for those with arthritis compared with those without. Persons from high-income families have greater odds of using chiropractic services compared with those from middle-income (42%) and low-income (67%) families. There was a significant interaction between Census region and urban-rural location. The results showed the prevalence of chiropractic use to be highest in small metro areas in the Midwest (10.5%) and Northeast (10.4%) as well as micropolitan/noncore areas in the West (10.8%) and Midwest (10.1%)., Conclusions: This study validates previous findings showing the prevalence of use is higher for whites, women, and persons with higher family income or reported arthritis. The results of this study also indicate that chiropractic use varies across the urban-rural landscape depending on the region of the country, suggesting that the effect of geographic location may be more complex than previously reported., (Copyright © 2012 National University of Health Sciences. Published by Mosby, Inc. All rights reserved.)

Objectives: To examine differences by income in insurance coverage, health care utilization, expenditures, and quality of care for children in the United States., Methods: Two national health care databases serve as the sources of data for this report: the 2000-2002 Medical Expenditure Panel Survey (MEPS) and the 2001 Nationwide Inpatient Sample (NIS) from the Healthcare Cost and Utilization Project (HCUP). In the MEPS analyses, low income is defined as less than 200% of the federal poverty level and higher income is defined as 200% of the federal poverty level or more. For the HCUP analyses, median household income for the patient's zip code of residence is used to assign community-level income to individual hospitalizations., Results: Coverage. Children from low-income families were more likely than children from middle-high-income families to be uninsured (13.0% vs 5.8%) or covered by public insurance (50.8% vs 7.3%), and less likely to be privately insured (36.2% vs 87.0%). Utilization. Children from low-income families were less likely to have had a medical office visit or a dental visit than children from middle-high-income families (63.7% vs 76.5% for office-based visits and 28.8% vs 51.4% for dental visits) and less likely to have medicines prescribed (45.1% vs 56.4%) or have utilized hospital outpatient services (5.2% vs 7.0%), but more likely to have made trips to the emergency department (14.6% vs 11.4%). Although low-income children comprise almost 40% of the child population, one quarter of total medical expenditures were for these children. Hospital Discharges. Significant differences by community-level income occurred in specific characteristics of hospitalizations, including admissions through the emergency department, expected payer, mean total charges per day, and reasons for hospital admission. Leading reasons for admission varied by income within and across age groups. Quality. Low-income children were more likely than middle-high-income children to have their parents report a big problem getting necessary care (2.4% vs 1.0%) and getting a referral to a specialist (11.5% vs 5.3%). Low-income children were at least twice as likely as middle-high-income children to have their parents report that health providers never/sometimes listened carefully to them (10.0% vs 5.1%), explained things clearly to the parents (9.6% vs 3.4%), and showed respect for what the parents had to say (9.2% vs 4.2%). Children from families with lower community-level incomes were more likely to experience ambulatory-sensitive hospitalizations. Racial/Ethnic Differences Between Income Groups. Use and expenditure patterns for most services were not significantly different between low- and middle-high-income black children and were lower than those for white children., Conclusions: While health insurance coverage is still an important factor in obtaining health care, the data suggest that efforts beyond coverage may be needed to improve access and quality for low-income children overall and for children who are racial and ethnic minorities, regardless of income.

Objective: To examine changes in insurance coverage, health care utilization, perceived quality of care, and expenditures for children and youth in the United States using data from 1987-2001., Methods: Three national health care databases serve as the sources of data for this report. The Medical Expenditure Panel Survey (1996-2001) provides data on insurance coverage, utilization, expenditures, and perceived quality of care. The National Medical Expenditure Survey (1987) provides additional data on utilization and expenditures. The Nationwide Inpatient Sample (1995-2000) from the Healthcare Cost and Utilization Project provides information on hospitalizations., Results: The percent of children uninsured for an entire year declined from 10.4% in 1996 to 7.7% in 1999. Most changes in children's health care occurred between 1987 and the late 1990s. Overall utilization of hospital-based services has declined significantly since 1987, especially for inpatient hospitalization. Several of the observed changes from 1987 varied significantly by type of health insurance coverage, poverty status, and geographic region. Quality of care data indicate some improvement between 2000 and 2001, which varies by insurance coverage. Overall, mean length of stay of hospitalizations did not change significantly from 1995 to 2000, but changes in the prevalence of hospitalizations and the length of stay associated with age-specific diagnoses were evident during this time period., Conclusions: Health care for children and youth has changed significantly since 1987, with most of the changes occurring between 1987 and 1996. Insurance coverage has improved, the site of care has shifted toward ambulatory sites, hospital utilization has declined, and expenditures on children as a proportion of total expenditures have decreased. Variation in these changes is evident by insurance status, poverty, and region.