TABLE 3.

Bivariate Correlations Grouped by Adjustment Variables and Disease Characteristics, Perceived Stress, Illness Perceptions, Disease Acceptance, Health Care Utilization, and Missed Work (N=38)

Variables	Adjustment
	PDS	BSI	IBDQ Social	IBDQ Emotional	SF-12v2 PCS	SF-12v2 MCS
Disease duration	−0.1	−0.11	0.14	0.15	0.01	0.2
IBDQ
Bowel health	−0.70**	−0.56**	0.80**	0.71**	0.64**	0.44**
Systemic health	−0.59**	−0.56**	0.41*	0.72**	0.52**	0.67**
Abdominal pain severity	0.59**	0.58**	−0.63**	−0.58**	−0.59**	−0.33*
Perceived stress	0.43**	0.74**	−0.25	−0.75**	−0.06	−0.83**
IPQR
Timeline - chronicity	0.16	0.02	0.02	−0.07	0.08	0
Personal control	−0.13	−0.06	0.11	0.11	0	−0.03
Treatment control	−0.16	−0.24	0.16	0.25	0.02	0.2
Illness coherence	−0.03	0.07	0.12	−0.09	0.05	−0.16
Cyclical nature	0.14	−0.04	−0.22	−0.04	−0.17	0.11
Emotional representation	0.4	0.56**	−0.44**	−0.58**	−0.26	−0.56**
Consequence	0.24	0.29	−0.32a	−0.40*	−0.11	−0.38*
Disease acceptance
Activities engagement	−0.42*	−0.64**	0.47*	0.74*	0.31	0.69**
Symptom tolerance	−0.23	−0.3	0.42*	0.40*	0.29	0.34*
Health care utilization
Physician visits	0.39*	0.70**	−0.40*	−0.58**	−0.07	−0.47**
Hospitalizations	0.07	0.01	−0.09	−0.04	−0.09	0.01
History of surgeries	0.33	0.03	−0.31	−0.11	−0.21	0.03
Missed work	0.29	0.26	−0.63**	−0.35a	−0.54**	−0.23

PDS, Perceived Disability Scale; BSI, Brief Symptom Inventory; IBDQ, Inflammatory Bowel Disease Questionnaire; SF-12v2, Short Form Health Survey Version 2; PCS, Physical Component Summary; MCS, Mental Component Summary; IPQR, Illness Perceptions Questionnaire-Revised.

^**P < 0.01,

^*P < 0.05.

^aCoefficient approaching significance, P = 0.05.