Table 3.

Crude and adjusted^† odds ratios (95% confidence interval) for flare^* at follow up by type and levels of fiber intake

IBD Type	Effect*	# cases flare	Median Intake (fiber g/day, whole gr oz eq/day)	Crude OR [95% CI]	Adjusted OR [95% CI]
CD	Fiber_quartile 1	89	10.4	Ref	Ref
CD	Fiber_quartile 2	59	13.4	0.72 [0.49–1.05]	0.72 [0.49–1.06]
CD	Fiber_quartile 3	61	17.0	0.77 [0.53–1.11]	0.75 [0.51–1.10]
CD	Fiber quartile 4	44	23.7	0.57 [0.38–0.86]	0.57 [0.37–0.87]
CD	Whole grain_quartile 1	77	0.1	Ref	Ref
CD	Whole grain_quartile 2	71	0.4	1.02 [0.70–1.48]	1.00 [0.69–1.46]
CD	Whole grain_quartile 3	62	0.9	0.86 [0.59–1.27]	0.87 [0.59–1.28]
CD	Whole grain_quartile 4	43	2.0	0.62 [0.41–0.94]	0.63 [0.41–0.96]
UC/IC	Fiber_quartile 1	18	10.8	Ref	Ref
UC/IC	Fiber_quartile 2	31	13.7	1.22 [0.62–2.42]	1.22 [0.62–2.42]
UC/IC	Fiber_quartile 3	39	16.8	1.62 [0.83–3.17]	1.62 [0.83–3.17]
UC/IC	Fiber_quartile 4	46	24.5	1.59 [0.83–3.05]	1.59 [0.83–3.05]
UC/IC	Whole grain_quartile 1	26	0.1	Ref	ref
UC/IC	Whole grain_quartile 2	33	0.4	1.03 [0.55–1.91]	1.03 [0.55–1.91]
UC/IC	Whole grain_quartile 3	29	0.9	0.87 [0.46–1.63]	0.87 [0.46–1.63]
UC/IC	Whole grain_quartile 4	46	2.1	1.27 [0.71–2.30]	1.27 [0.71–2.30]

^†adjusted for sex, history of surgery, history of hospitalization, duration of disease and age).

^*flare defined as not in remission or hospitalization or surgery at the time of the follow-up survey