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Abstract Number: 2144

Epidemiological Characterisitics of Psoriatric Arthritis: A Nationwide Study of Inpatient Hospitalisations in 2014

Vagishwari Murugesan and Jennifer Tran, Internal Medicine, Medstar Washington Hospital Center, Washington, DC

Meeting: 2018 ACR/ARHP Annual Meeting

Keywords: Epidemiologic methods, psoriatic arthritis and risk

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Session Information

Date: Tuesday, October 23, 2018

Title: Epidemiology and Public Health Poster III: SLE, SSc, APS, PsA, and Other Rheumatic Diseases

Session Type: ACR Poster Session C

Session Time: 9:00AM-11:00AM

Background/Purpose:: Psoriatic arthritis is a seronegative inflammatory arthritis associated with Psoriasis. Using the National Inpatient Sample (NIS) we studied the epidemiological characteristics of inpatients admissions using the ICD 9 Code 6460.00 in the year 2014.

Methods:: The NIS is a nationally representative sample of 20% of all non-federal hospitals in the USA with information from approximately 1000 hospitals pertaining to records from 7 million inpatient hospital admissions. The epidemiological characteristics we studied were age, gender, payer (Medicare/Medicaid/private insurance/uninsured), patient residence (large central metro, suburbs, medium and small metro and rural areas) and region (northeast, mid-west, southern and west) and associated co-morbidities: hypertension,diabetes,heart failure, chronic kidney disease,osteoarthritis & heart failure. Multiple linear regression was used to analyze factors that were associated with psoriatic arthritis.

Results: For 2014, from a total of nearly 7 million records (7,071,762), there were 775 admissions for psoriatic arthritis as the primary diagnosis (0.16%) which translated to 0.2 admissions per 100,000 persons.The majority of admissions were in the age group of 45 – 64 years (37.4 %) followed by 18-44 age group (30.9%). There was no gender difference males(52.9%) and females (47.1%) [p<0.4]. The total aggregate costs were $30,851,867 for 2014 amounting to a mean of $10,728 per admission. Medicare remained the highest payer (36.7%) followed by private insurance (33.5%) and finally Medicaid (21.9%). Patients from a 27.7% patients were from a large central metro and medium and small sized metro and an equal percentage of 27.7% were from a medium sized metro. 26.4% % of patients were from the suburbs and whereas only 18% were from a rural area.The southern region accounted for majority of admissions(34.%)followed by northeast region(25.1%).21.2% were from Midwest and Western region had only 19.3% of all admissions. The mean length of stay(LOS)was 4.4 ± 0.3 days. By multivariate regression the following co-morbidities were noted to be associated with psoriatic arthritis: Hypertension (p< 0.001), CKD (p<0.001), Osteoarthritis (p<0.001), Diabetes (p<0.001) and Heartfailure (p<0.001)

Conclusion: While psoriatic arthritis inpatient admissions only account for 0.2 per 100,000 persons, it places a significant burden on cost and length of stay and is independently associated with hypertension, CKD, osteoarthritis, diabetes and heart failure.


Disclosure: V. Murugesan, None; J. Tran, None.

To cite this abstract in AMA style:

Murugesan V, Tran J. Epidemiological Characterisitics of Psoriatric Arthritis: A Nationwide Study of Inpatient Hospitalisations in 2014 [abstract]. Arthritis Rheumatol. 2018; 70 (suppl 9). https://acrabstracts.org/abstract/epidemiological-characterisitics-of-psoriatric-arthritis-a-nationwide-study-of-inpatient-hospitalisations-in-2014/. Accessed .
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