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Risk Factors for Interstitial Cystitis in the General Population and in Individuals With Depression
M Soledad Cepeda1, Jenna Reps1, Anthony G Sena1
1Janssen Research and Development, Titusville, NJ, USA.
Purpose:
To identify risk factors for interstitial cystitis (IC), a chronic bladder disorder that may have a significant detrimental impact on quality of life, in the general population and in individuals with depression.
Methods:
This was a comparative study using a US claims database. Adults who had records of a visit to the health system in 2010 or later were included. The outcome was the development of IC within 2 years after the index date. The index date for the general population was the first outpatient visit, and for individuals with depression, it was the date of the diagnosis of depression. IC was defined using the concepts of ulcerative and IC. We included all medical conditions present any time prior to the index visit as potential risk factors.
Results:
The incidence of IC was higher in individuals with depression than in the general population. Of the 3,973,000 subjects from the general population, 2,293 (0.06%) developed IC within 2 years. Of the 249,200 individuals with depression, 320 (0.13%) developed IC. The characteristics of the individuals who developed IC were similar in both populations. Those who developed IC were slightly older, more likely to be women, and had more chronic pain conditions, malaise, and inflammatory disorders than patients without IC. In the general population, subjects who developed IC were more likely to have mood disorders, anxiety, and hypothyroidism.
Conclusion:
The incidence of IC was higher in individuals with depression. Subjects who developed IC had more chronic pain conditions, depression, malaise, and inflammatory disorders.
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