Angiotensin receptor blockers were associated with lower rates of sepsis and mortality than angiotensin-converting enzyme inhibitors in the patients with chronic obstructive pulmonary disease. The similar findings were also noted in subgroup analysis. The primary outcome was sepsis, and the secondary outcome was death. The occurrence rate of sepsis was 3.67 per 100 person-years for the patients receiving angiotensin-converting enzyme inhibitors and 2.87 per 100 person-years for those receiving angiotensin receptor blockers. All patients with chronic obstructive pulmonary disease who received angiotensin-converting enzyme inhibitors or angiotensin receptor blockers for more than 90 days.

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