Reliability of the DSS-Swe Questionnaire

Jans, Anders,1981-Örebro universitet,Institutionen för medicinska vetenskaper,Department of Surgery, Faculty of Medicine and Health, Örebro University, Örebro, Sweden (author)

BACKGROUND: Symptomatic postbariatric hypoglycemia (PBH) is a known complication that can occur a few years after Roux-en-Y gastric bypass (RYGB). There is currently no established rating scale for PBH-associated symptoms developed for use in Swedish populations. The aim of the study was to translate an already existing questionnaire into Swedish and to test its reliability.METHODS: The study included forward and backward translations of the original Dumping Severity Scale (DSS) questionnaire with 8 items regarding symptoms of early dumping and 6 items regarding hypoglycemia, with each item graded on a 4-point Likert scale. The reliability of the Swedish translated questionnaire (DSS-Swe) was estimated using internal consistency and test-retest methods.RESULTS: A total of 200 patients were included in the study. Good internal consistency was demonstrated regarding the items related to early dumping symptoms, with a Cronbach's alpha coefficient of 0.82, and very good agreement in terms of test-retest reliability, with an overall intraclass correlation coefficient (ICC) of 0.91 (95% CI 0.88-0.93). The items related to hypoglycemia yielded a good Cronbach's alpha coefficient of 0.76 and an ICC of 0.89 (95% CI 0.85-0.91).CONCLUSION: The DSS-Swe questionnaire shows good reliability regarding both internal consistency and test-retest performance for use in Swedish populations.

Rask, Eva,1958-Örebro universitet,Institutionen för medicinska vetenskaper,University Health Care Research Centre(Swepub:oru)erk (author)
Ottosson, Johan,1957-Örebro universitet,Institutionen för medicinska vetenskaper,Region Örebro län,Department of Surgery(Swepub:oru)jhon (author)
Magnuson, AndersClinical Epidemiology and Biostatistics, School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden (author)
Szabo, Eva,PhD,1973-Örebro universitet,Institutionen för medicinska vetenskaper,Region Örebro län,Department of Surgery(Swepub:oru)eso (author)
Stenberg, Erik,1979-Örebro universitet,Institutionen för medicinska vetenskaper,Region Örebro län,Department of Surgery(Swepub:oru)eisg (author)
Örebro universitetInstitutionen för medicinska vetenskaper (creator_code:org_t)

By the author/editor: Jans, Anders, 19 ...; Rask, Eva, 1958-; Ottosson, Johan, ...; Magnuson, Anders; Szabo, Eva, PhD, ...; Stenberg, Erik, ...

About the subject

MEDICAL AND HEALTH SCIENCES: MEDICAL AND HEAL ...; and Clinical Medicin ...; and Surgery

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