Table 4

Trends of irritable bowel syndrome event risk in atopic dermatitis (AD) by stratified follow-up years

	Non-AD			AD			Adjusted HR† (95% CI)
Follow time	Event	Person-years	IR	Event	Person-years	IR	Adjusted HR† (95% CI)
≤2 years	417	230 023	18.1	612	230 588	26.5	1.46 (1.29 to 1.65)*
3–4 years	179	177 571	10.1	262	177 995	14.7	1.46 (1.21 to 1.77)*
≥5 years	155	174 465	8.88	220	174 845	12.6	1.42 (1.16 to 1.74)*

*p<0.001.
Adjusted HR†, adjusted for age and sex.
IR, incidence rate, per 10 000 person-years.