Dutch–Flemish translation and validation of the gastrointestinal symptom scales from the patient‑reported outcomes measurement information system (PROMIS)®

Journal of Patient-Reported Outcomes

Table 1 Hypotheses of PROMIS Gastrointestinal Symptom Scales with legacy measures

	GSRS reflux	GSRS indigestion	GSRS belly pain	GSRS diarrhea	GSRS constipation	GSRS total	IBD-Q	IBS-QOL
PROMIS gastroesophageal reflux	> 0.40^a	> 0.40	> 0.40	< 0.40^b	> 0.40	> 0.40	> − 0.40	< − 0.40
PROMIS disrupted swallowing	> 0.40	> 0.40	> 0.40	< 0.40	> 0.40	> 0.40	< − 0.40	< − 0.40
PROMIS diarrhea	< 0.40	> 0.40	< 0.40	> 0.40	< 0.40	> 0.40	> − 0.40	> − 0.40
PROMIS incontinence	< 0.40	< 0.40	< 0.40	> 0.40	< 0.40	> 0.40	> − 0.40	< − 0.40
PROMIS nausea and vomiting	> 0.40	> 0.40	> 0.40	< 0.40	> 0.40	> 0.40	> − 0.40	> − 0.40
PROMIS constipation	< 0.40	> 0.40	> 0.40	< 0.40	> 0.40	> 0.40	> − 0.40	< − 0.40
PROMIS abdominal pain	> 0.40	> 0.40	> 0.40	> 0.40	> 0.40	> 0.40	> − 0.40	> − 0.40
PROMIS gas and Bloating	> 0.40	> 0.40	> 0.40	> 0.40	> 0.40	> 0.40	> − 0.40	> − 0.40

GSRS gastrointestinal symptom rating scale, IBDQ Inflammatory bowel disease questionnaire, IBS-QOL irritable bowel syndrome-quality of life, PROMIS patient-reported outcomes measurement information system
^aPearson ‘s r of > 0.040 represent a moderate to strong correlation
^bPearson ‘s r of < 0.040 represent a weak correlation