Measurement properties of the Dutch–Flemish patient-reported outcomes measurement information system (PROMIS) physical function item bank and instruments: a systematic review

Abma, Inger L.; Butje, Bas J. D.; ten Klooster, Peter M.; van der Wees, Philip J.

doi:10.1186/s12955-020-01647-y

Table 7 Summary of the evidence per item bank/instrument

From: Measurement properties of the Dutch–Flemish patient-reported outcomes measurement information system (PROMIS) physical function item bank and instruments: a systematic review

Item bank/instrument	Validity				Reliability		Responsiveness
	Content validity	Structural validity	Construct validity via hypothesis testing	Cross-cult. validity/measurement invariance	Internal consistency/measurement precision	Reliability/measurement error	Responsiveness
	Comprehensibility/relevance/comprehensiveness	Structural validity	Construct validity via hypothesis testing	Cross-cult. validity/measurement invariance	Internal consistency/measurement precision	Reliability/measurement error	Responsiveness
PF item bank	+^a/./.	+++	+++	+	+++	.	.
	+^b/+^c/+
PROMIS-PF-20	+^b/+^c/.	−	+	+	++^c	.	.
PROMIS-PF-10	+^b/+^c/.	+	+	.	−	.	.
PROMIS-PF-8	+^b/+^c/.	+	+	.	±	.	.
PROMIS-PF-6	+^b/+^c/.	+	+	.	±	.	.
PROMIS-PF-4	+^b/+^c/.	+	+	.	±	.	.
PROMIS-PF-RA	+^b/+/+	.	.	.	+	.	.
PROMIS-PF-GR	+/+/+	?	.	?	?	.	.
CAT-20	+^b/+^c/.	.	.	.	++	.	.
CAT-10	+^b/+^c/.	.	.	.	++	.	.
CAT-8	+^b/+^c/.	.	.	.	−−^d	.	.
					+^e
CAT-6	+^b/+^c/.	.	.	.	−−^d	.	.
					+^e
CAT-4	+^b/+^c/.	.	.	.	−−	.	.
UE subdomain	./?^f/.	+++	.	+	+++	.	.
PROMIS-UE-7a	./−^g/.	.	.	.	+	.	.
UE CAT^h	././.	.	.	.	+	.	.
UE CAT-7	././.	.	.	.	+	.	.

CAT-[number], computer adaptive test with fixed [number] of items; GR, geriatric rehabilitation; PROMIS, Patient-Reported Outcomes Measurement Information System; PROMIS-PF-[number], short form with [number] of items; RA, rheumatoid arthritis; UE, upper extremity
(+)/(− −) = very low quality evidence of sufficient or insufficient quality of the measurement property
± = low quality evidence of sufficient or insufficient quality of the measurement property
++/– = moderate quality evidence of sufficient or insufficient quality of the measurement property
+ + +/— = high quality evidence of sufficient or insufficient quality of the measurement property
? = indeterminate evidence
. = not studied
^aSufficient comprehensibility in general population; relevance and comprehensiveness not studied
^bFor patients with RA. Evidence for comprehensibility of the Dutch–Flemish PROMIS-PF item bank from the general population is considered valid for all other relevant patient populations and for all instruments derived from this item bank. for this review
^cFor patients with RA (not studied in other populations). We have extrapolated the results from the PROMIS-PF item bank to the instruments derived from the item bank
^cDowngrade of the evidence due to inconsistent results for which there was no potential explanation
^dFor patients with pain. (Split up due to inconsistent results that potentially be explained by the study population.)
^eFor physical therapy patients. (Split up due to inconsistent results that potentially be explained by the study population.)
^fNot studied for comprehensibility and comprehensiveness. Only four items of item bank studied for relevance, therefore indeterminate evidence for overall relevance of item bank
^gDerived from the study of the full item bank: 2/7 (29%) of items are considered less relevant in a Dutch population
^h With standard PROMIS CAT stopping rules (standard error of ≤ 3 on the T-score metric is reached, maximum of 12 items)

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