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Table 3 Construct Validity: CD-PRO/SS Score Correlationsa with IBDQ Scores at Baseline

From: Development and validation of the Crohn’s disease patient-reported outcomes signs and symptoms (CD-PRO/SS) diary

CD-PRO/SS

IBDQ Item and Scale Scores

Item 1 (Bowel Frequency)

Item 20 (Bloating)

Item 22 (Rectal Bleeding)

Bowel System

Systemic System

Emotion Health

Social Function

BM Scale

.43

.06

.08

.26

.09

.10

.19

Number of bowel movements

.37

.15

.07

.14

.02

.03

.15

Mostly liquid bowel movements

.32

.08

.01

.16

.14

.02

.10

Need to have bowel movement right away

.35

.04

.10

.29

.09

.15

.14

Abdominal Scale

.15

.54

.02

.48

.27

.26

.24

Pass gas

.17

.26

.06

.30

.10

.20

.13

Pain in belly

.14

.25

.06

.38

.30

.15

.23

Bloating

.07

.69

.01

.43

.26

.27

.20

  1. aSpearman’s correlation coefficient
  2. Abbreviations: CD-PRO/SS Crohn’s disease patient-reported outcome signs and symptoms, IBDQ Inflammatory Bowel Disease Questionnaire, p p-value, r Rating