Furthermore, the ORs for PID among BPS/IC cases were 4.52 (95% CI: 2.55-8.01), 4.31 (95% CI: 2.91-6.38), 3.00 (95% CI: 1.82-4.94), and 5.35 (95% CI: 1.88-15.20) in the <35, 35-49, 50-64, and >65 years age groups, respectively, after adjusting for geographic region, irritable bowel syndrome, and hypertension. 
THERM