Author/Editor		Topolovec, Matevž; Vozlič, David; Plohl, Nejc; Vengust, Rok; Vodičar, Miha; Mannion, Anne Frances
Title		Cross-cultural adaptation and validation of the Slovenian version of the Core outcome measures index for low back pain
Type		članek
Vol. and No.		Letnik 21, št. 1
Publication year		2020
Volume		str. 1-8
ISSN		1471-2474 - BMC musculoskeletal disorders
Language		eng
Abstract		Background:To conduct a cross-cultural adaptation and validation of the Core Outcome Measures Index (COMI) in the Slovenian language, for use in patients with low back pain.Methods:The English version of COMI was translated into Slovene following established guidelines. Three hundredfifty-three patients with chronic low back pain were recruited from the Orthopedic clinic department of a tertiary care teaching institution. Data quality, construct validity, responsiveness, and test-retest reliability of the COMI were assessed. Results: The questionnaire was generally well accepted with no missing values. The majority of items exhibited only mild ceiling effects (below 20.0%) and some what more prominent floor effects, which were similar to previousstudies (4.5-78.8%). Correlations with Oswestry Disability Index (ODI) were high (= 0.76 between overall COMI andODI scores), suggesting that the Slovene version of COMI had high construct validity. Additionally, the Slovene version of COMI successfully captured surgical patients' improvement in their low back problem after surgery(overall COMI score change: Z =9.34,p< .001, r =0.53) and showed acceptable test-retest reliability (ICC = 0.86).Conclusions:The Slovene version of COMI showed good psychometric properties, comparable to those of previously tested language versions. It represents a valuable instrument for the use in future domestic and multicenter clinical studies.
Keywords		low back pain validation core outcome measures index bolečina v križu validacija indeks temeljnih rezultatov