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. Author manuscript; available in PMC: 2022 Mar 1.

Published in final edited form as: Ann Surg Oncol. 2020 Nov 28;28(3):1656–1668. doi: 10.1245/s10434-020-09346-0

TABLE 4.

Item generation and reduction – PROM development

	BCL E-SEI	FL QA-I	FL QA-LS	LL IS	LL IS 2.0	LSI DS-A	LSI DS H&N	LS IDS-L	Lym-ph-ICF	Lym-ph-ICF-UL	Lym-ph-ICF-LL	LYM-QOL	Ly-QLI	PBI-L	(S)LQ-OLI	UL-L-27	ULL-QoL
Item generation
Patient interviews																X
Patient survey		X					X		X		X			X			X
Expert opinions						X	X	X							X^a
Literature review						X	X		X		X						X
Based on other PROM		X	X		X		X	X		X			X^a		X^a
Author’s experience				X^a	X
Item reduction
Endorsement frequency						X
Item redundancy			X			X						X^a					X
Expert opinion		X	X										X^a	X			X
Missing data
Factor analysis			X^b										X^a			X

PROM patient-reported outcome measure

^a

Limited information on development

^b

Factor analysis was not conclusive