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Validity and reliability of a Lithuanian version of low anterior resection syndrome score

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Abstract

Background

Up to 90 % of patients undergoing low anterior resection complain of increased daily bowel movements, urgency, and a variable degree of incontinence. A symptom-based scoring system for bowel dysfunction after low anterior resection for rectal cancer has recently been developed and validated. The aim of our study was to adapt the low anterior resection syndrome (LARS) scale questionnaire to the Lithuanian language, and assess its psychometric properties.

Methods

The LARS questionnaire was translated into Lithuanian by the Scientific Advisory Committee of the Medical Outcomes Trust using a standard procedure of double-back translation. The Lithuanian version of the LARS (LARS-LT) questionnaire was completed by 111 patients who underwent low anterior resection with total mesorectal excision in the period from January 1, 2008, to December 31, 2012, at the National Cancer Institute. An anchor question from the Wexner score assessing the impact of bowel function on lifestyle was included. A subgroup of 20 patients completed the LARS-LT questionnaire twice. Validity was tested using a factor analysis, and internal reliability was estimated using the Cronbach’s alpha and intraclass correlation coefficients.

Results

Twenty-seven patients (25 %) had no LARS, 26 (24 %) had minor LARS, and 55 (56 %) had major LARS. The response rate was 60.7 %. The LARS-LT showed significantly high reliability and internal consistency [Cronbach’s α = 0.88, interclass correlation coefficient—0.86 (0.71–0.98)]. The LARS score showed significant correlations with the lifestyle question (p < 0.05). It could not detect differences between female and male patient groups (p = 0.33), patients’ age (p = 0.45), patients who had/had not undergone radiation therapy (p = 0.07), and those in whom the distal edge of the tumor was close to or far from the anal verge (p = 0.17).

Conclusions

The Lithuanian version of the LARS-LT shows acceptable psychometric properties and can be considered a valuable and specific instrument to assess bowel function in rectal cancer patients, both for research purposes and in clinical practice.

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The authors declare that they have no conflict of interest.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Informed consent was obtained from all individual participants included in the study.

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Correspondence to A. Dulskas.

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Samalavicius, N.E., Dulskas, A., Lasinskas, M. et al. Validity and reliability of a Lithuanian version of low anterior resection syndrome score. Tech Coloproctol 20, 215–220 (2016). https://doi.org/10.1007/s10151-015-1424-0

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  • DOI: https://doi.org/10.1007/s10151-015-1424-0

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