Adjusted ORs for colorectal cancer treated with a combination of TZDs and low-dose aspirin (A) or a combination of TZDs and NSAIDs (B). CRC, colorectal cancer. Group Ia, never used TZDs and the duration of low-dose aspirin use was <270 days; group IIa, duration of TZD use was between 1 and 270 days, and the duration of low-dose aspirin use was <270 days; group IIIa, duration of TZD use was >270 days, and duration of low-dose aspirin use was <270 days; group IVa, never used TZDs, and duration of low-dose aspirin use was >270 days; group Va, duration of TZD use was between 1 and 270 days, and the duration of low-dose aspirin use was > 270 days; group VIa, duration of TZD use was >270 days, and the duration of low-dose aspirin use was >270 days; group Ib, never used TZDs, and the duration of NSAID use was <90 days; group IIb, duration of TZD use was between 1 and 270 days, and the duration of NSAIDs use was <90 days; group IIIb, duration of TZD use was >270 days, and the duration of NSAID use was <90 days; group IVb, never used TZD, and the duration of NSAID use was >90 days; group Vb, duration of TZD use was between 1 and 270 days, and the duration of NSAID use was >90 days; group VIb, duration of TZD use was >270 days, and the duration of NSAID use was >90 days. *Adjusted for urbanization, income, colorectal polyp disorder, inflammatory bowel disease, hypertension, hyperlipidemia, biliary stone disease, alcohol-related disease, chronic kidney disease, diabetes-related complications, ischemic heart disease, cerebrovascular disease, heart failure, chronic obstructive pulmonary disease, and hormone therapy. P for interaction between low-dose aspirin and TZD = 0.854. P for interaction between NSAID and TZD = 0.781.