. Author manuscript; available in PMC: 2024 Apr 1.

Published in final edited form as: J Am Acad Dermatol. 2023 Jan 20;88(4):841–847. doi: 10.1016/j.jaad.2023.01.014

Table 2 –

One-year incidence of inflammatory bowel among patients with acne compared to patients without acne

	No Acne			Acne			Odds Ratio	95% CI
	Patients, total, n	Patients with incident outcome, n	IR/1000	Patients, total, n	Patients with incident outcome, n	IR/1000	Odds Ratio	95% CI
Outcomes
Any inflammatory bowel disease	353,381	293	0.83	351,670	415	1.18	1.42	1.23–1.65
Crohn’s disease	353,942	191	0.54	352,723	297	0.84	1.56	1.30–1.87
Ulcerative colitis	354,226	158	0.45	353,363	255	0.72	1.62	1.33–1.97