Table 2.

Demographics of PREDICTS study population.

	Crohn's disease		Ulcerative colitis		Healthy controls
	N	%	N	%	N	%
Gender
Male	822	82.2%	828	82.8%	460	92.0%
Female	178	17.8%	172	17.2%	40	8.0%
Age
20-29	445	44.5%	427	42.7%	210	42.0%
30-39	409	32.8%	411	35.5%	218	35.5%
40-49	135	14.5%	147	16.7%	71	15.8%
>=50	11	1.2%	15	1.6%	1	0.2%
Education
High school (or equivalent)	691	69.1%	586	58.6%	324	64.8%
Some college	92	9.2%	134	13.4%	52	10.4%
College	120	12.0%	181	18.1%	77	15.4%
Advanced degree	75	7.5%	75	7.5%	36	7.2%
Unknown	22	2.2%	24	2.4%	11	2.2%
Marital status
Married	77	na	713	71.3%	369	73.8%
Single/Other	23	na	287	28.7%	131	26.2%
Military Rank
Jr. Enlisted	185	18.5%	140	14.0%	70	14.0%
Sr. Enlisted	636	63.6%	614	61.4%	318	63.6%
Officer	179	17.9%	246	24.6%	112	22.4%
Branch of Service
Army	na	na	324	32.4%	161	32.2%
Air Force	na	na	263	26.3%	114	22.8%
Marines	na	na	109	10.9%	52	10.4%
Navy/Coast Guard	na	na	304	30.4%	173	34.6%
Race/Ethnicity
White	696	69.6%	781	78.1%	414	82.8%
Black	156	15.6%	171	17.1%	71	14.2%
Other	148	14.8%	48	4.8%	15	3.0%
Deployments
Deployed	628	69.1%	738	77.1%	390	81.9%
Not deployed	372	33.1%	262	25.0%	110	21.4%

na = not available at time of publication.