Insurance and quality of care for children with acute asthma.
BACKGROUND
Increasing attention has been paid to the role of insurance in determining quality and outcomes of care. Pressures to reduce health costs and to improve quality have prompted attempts by managed care organizations to decrease the use of the emergency department (ED) for acute asthma, but performance comparisons between insurance types remain rare.


METHODS
We used prospective data from the Multicenter Airway Research Collaboration on 965 children with acute asthma presenting to 36 EDs. We compared measures of quality of pre-ED care, acute severity, and short-term outcomes (length of stay, percent relapse, and percent with ongoing symptoms) across 4 different insurance categories: managed care, indemnity, Medicaid, and uninsured. We used multivariate regression to control for differences in education, estimated income, race/ethnicity, and chronic asthma severity and acute asthma characteristics.


RESULTS
Children with managed care and indemnity had similar demographic and asthma characteristics, but these children differed significantly from Medicaid and uninsured patients. Managed care and indemnity insured children had similar ratings on all 7 quality measures, with Medicaid and uninsured children ranking significantly lower on most measures, including (1) percent with primary care provider (PCP) (P <.001), (2) percent using ED as usual site of asthma care (P <.001), (3) percent using ED for prescriptions (P <.001), (4) percent with a ratio of >1 of ED visits to acute office visits within the past year (P =.003), and (5) percent visiting their PCP within the week prior to ED visit (P <.001). Children with managed care were more acutely ill than were indemnity, Medicaid, or uninsured children on presentation to the ED (pulmonary index of 4.6, 4.0, 4.2, and 3.9, respectively, P =.007). There were no significant differences in length of hospital stay, relapse, and ongoing exacerbation.


CONCLUSIONS
Our results indicate similar quality of care, greater severity of acute asthma, and no worse outcomes for children with managed care compared to children with indemnity insurance. We found uninsured children to have consistently poorer quality of care than insured patients.
Ferris
T G
TG
Institute for Health Policy, Massachusetts General Hospital, Boston, USA.
Crain
E F
EF
Oken
E
E
Wang
L
L
Clark
S
S
Camargo
C A
CA
D000704:Analysis of Variance; D001249:Asthma / Q000145:classification / Q000175:diagnosis / Q000628:therapy*; D002648:Child; D002675:Child, Preschool; D015331:Cohort Studies; D004636:Emergency Service, Hospital / Q000191:economics* / Q000592:standards* / Q000706:statistics & numerical data; D004638:Emergency Treatment / Q000191:economics / Q000592:standards; D005260:Female; D006279:Health Maintenance Organizations / Q000191:economics* / Q000592:standards / Q000706:statistics & numerical data; D006801:Humans; D019458:Insurance Coverage; D008297:Male; D008484:Medicaid / Q000191:economics* / Q000592:standards / Q000706:statistics & numerical data; D011336:Probability; D011379:Prognosis; D011446:Prospective Studies; D011785:Quality Assurance, Health Care / Q000706:statistics & numerical data*; D012720:Severity of Illness Index; D018709:Statistics, Nonparametric; D016896:Treatment Outcome; D014481:United States