National Trends in Hospitalizations of Migraine in the United States, 2002-2012 (P1.157)

Objective The objective of this study was to describe national trends in patients hospitalized with migraine in the United States over an 11-year period. Methods Data from the National Inpatient Sample (NIS) for the period 2002-2012 was retrospectively reviewed. All hospitalizations with a primary diagnosis of migraine from the ICD-9-CM were analyzed. Results In 2012, there were an estimated 54,510 hospitalizations of migraine compared with 43,791 such hospitalizations in 2002. The highest prevalence of migraine was among adults 35-44 years. The prevalence was greater in whites (72.1[percnt]) and females (79.5[percnt]). Of all 101,134 specifically coded migraine hospitalizations, 35.1[percnt] were migraine with aura, 20.5[percnt] without aura, and 8.7[percnt] chronic migraine without aura. Migraine with aura was associated with a higher comorbidity rate of pulmonary circulation disorders (OR, 2.05), peripheral vascular disorders (OR, 2.32, p<0.01), hypertension (OR, 1.69), congestive heart failure (OR, 1.30), diabetes mellitus (OR, 1.38), and obesity (OR, 1.28) compared to migraine without aura. The most common diagnostic procedures were lumbar puncture (15.1[percnt]), MRI of the brain (5.7[percnt]), cerebral angiography (4.2[percnt]), and head CT (4[percnt]), with no significant difference over the years. Average hospital cost increased from $8,495 in 2002 to $21,567 in 2012 (p<0.001), an inflation-adjusted growth of 99[percnt]. In 2002, primary payer for most of the patients was private insurance; in 2012, there was a 13[percnt] decrease in private insurance, and 4[percnt] and 6[percnt] increase in Medicare and Medicaid rate, respectively. There was no significant change in the length of stay (LOS, mean 2.8 days) between these years. Conclusion There was a significant increase in the rate of migraine hospitalizations between 2002 and 2012. Despite stable hospital LOS and no change in trend of diagnostic procedures, total hospital charges attributable to these admissions grew dramatically. A greater focus on quality headache services are needed to avoid costly hospitalizations. Disclosure: Dr. Taherian has nothing to disclose. Dr. Monteith has nothing to disclose.