Validity, Reliability, and Responsiveness of the Brief Pain Inventory in Inflammatory Bowel Disease
Table 2
Overall mean (SD) BPI scores according to diagnosis and test-retest scores in patients with an unchanged condition.
BPI item
Ulcerative colitis
Crohn’s disease
Overall T1 ()
Unchanged T1 ()
Unchanged T2 ()
ICC
Overall T1 ()
Unchanged T1 ()
Unchanged T2 ()
ICC
Pain worst
2.7 (2.4)
2.4 (2.4)
2.2 (2.3)
0.85
2.5 (2.3)
2.7 (2.1)
2.9 (2.4)
0.78
Pain least
1.2 (1.6)
0.9 (1.5)
1.0 (1.7)
0.81
1.0 (1.3)
0.9 (1.3)
1.0 (1.3)
0.73
Pain average
2.8 (2.3)
2.3 (2.2)
2.2 (2.1)
0.83
2.6 (2.3)
2.6 (2.2)
2.7 (2.2)
0.79
Pain now
1.5 (1.9)
1.2 (1.7)
1.4 (1.7)
0.86
1.4 (1.7)
1.5 (1.7)
1.7 (2.0)
0.85
General activity
2.4 (2.5)
2.0 (2.3)
2.0 (2.3)
0.92
2.4 (2.8)
2.3 (2.6)
2.4 (2.5)
0.90
Mood
2.4 (2.6)
2.0 (2.2)
2.0 (2.2)
0.92
2.4 (2.6)
2.6 (2.5)
2.5 (2.6)
0.89
Walking
0.8 (1.8)
0.7 (1.5)
0.6 (1.2)
0.83
0.8 (1.7)
0.8 (1.7)
0.7 (1.6)
0.84
Work
2.1 (2.6)
1.7 (2.5)
1.6 (2.3)
0.87
2.2 (2.8)
2.2 (2.8)
2.2 (2.8)
0.87
Relationship with others
2.0 (2.5)
1.7 (2.5)
1.5 (2.1)
0.85
2.0 (2.5)
2.1 (2.6)
2.1 (2.6)
0.90
Sleep
1.9 (2.7)
1.9 (2.7)
1.7 (2.4)
0.90
1.8 (2.5)
1.8 (2.5)
1.9 (2.5)
0.84
Enjoy
2.4 (2.7)
2.1 (2.5)
1.9 (2.2)
0.82
2.3 (2.7)
2.3 (2.6)
2.3 (2.7)
0.91
BPI intensity±
8.2 (7.5)
6.9 (7.0)
6.8 (6.9)
0.89
7.5 (6.4)
7.7 (6.2)
8.3 (6.9)
0.84
BPI interference±
14.0 (15.2)
12.2 (13.8)
11.4 (12.2)
0.89
13.9 (15.4)
14.2 (15.6)
14.1 (14.7)
0.90
SD: standard deviation, BPI: brief pain inventory, T1: baseline, T2: retest (4–6 weeks after baseline measurement), ICC: intraclass correlation coefficient, between patients with unchanged condition from T1 to T2, ±sum scores of individual items.
