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Reliability and Validity of Swedish version of the Oral Health Impact Profile
Malmö högskola, Faculty of Odontology (OD).
Malmö högskola, Faculty of Odontology (OD).ORCID iD: 0000-0002-9638-4648
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2004 (English)In: Acta Odontologica Scandinavica, ISSN 0001-6357, E-ISSN 1502-3850, Vol. 62, no 3, p. 147-152Article in journal (Other academic)
Abstract [en]

The aim of this study was to translate the Oral Health Impact Profile (OHIP) into Swedish and evaluate the reliability and validity of the Swedish version (OHIP-S). The OHIP is a 49-item, self-administered questionnaire divided into seven different subscales. The original version in English was translated into Swedish, accompanied by back-translation into English, after which the Swedish version was revised. A total of 145 consecutive patients participated and answered a questionnaire. The patients comprised five clinically separate groups: temporomandibular dysfunction (TMD) (n=30), Primary Sjögren’s Syndrome (SS) (n=30), burning sensation and pain in the oral mucosa (Oral mucosal pain, OMP) (n=28), skeletal malocclusion (Malocclusion) (n=27), and healthy dental recall patients (Controls) (n=30). The TMD group and the Control group participated in a test-retest procedure. The internal reliability of each subscale was calculated with Cronbach’s alpha and found to be high and to range from 0.83-0.91. The stability (test-retest) of the instrument, calculated using the intraclass correlation coefficient, ranged from 0.87-0.98. The construct validity of OHIP-S was compared with subscales of the Symptom Check List (SCL-90) (rho 0.65) and the Jaw Function Limitation Scale (JFLS) (rho 0.76) and analyzed with Spearman’s correlation coefficient. Convergent validity was evaluated by comparing OHIP with self-reported health using Spearman’s correlation coefficient and was found to be acceptable (rho 0,61). In the evaluation of the discriminative ability of the instrument, significant differences were found in the total OHIP-S score between the controls and the four other groups (P < 0.001). We conclude that the reliability and validity of OHIP-S is excellent. The instrument can be recommended for assessing the impact of oral health on masticatory ability and psychosocial function.

Place, publisher, year, edition, pages
2004. Vol. 62, no 3, p. 147-152
National Category
Dentistry
Identifiers
URN: urn:nbn:se:mau:diva-15653DOI: 10.1080/00016350410001496Local ID: 3071OAI: oai:DiVA.org:mau-15653DiVA, id: diva2:1419175
Available from: 2020-03-30 Created: 2020-03-30 Last updated: 2023-07-05Bibliographically approved
In thesis
1. Methodological studies of orofacial aesthetics, orofacial function and oral health-related quality of life
Open this publication in new window or tab >>Methodological studies of orofacial aesthetics, orofacial function and oral health-related quality of life
2010 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [sv]

Det finns idag ett ökat medvetande om hur hälsa, ohälsa och vårdpåverkar livskvaliteten. Utveckling av olika hälsomått och livskvalitetsinstrumentär ett växande forskningsområde där det ärindividens upplevelse i samband med ett visst tillstånd man undersöker.Sådana instrument har många användningsområden dels idirekta vårdsammanhang, dels i olika forskningsprojekt. Att uppnåförbättring avseende funktion, estetik och livskvalitet förpatienterna, samt att kunna påvisa detta är betydelsefulla mål inomtandvården. Avhandlingen, som är baserad på fem delstudier,syftar till att utveckla metoder för att mäta oralt relateradlivskvalitet, orofacial funktion och orofacial estetik.Delstudie I. Ett av de mest välstuderade oralt relateradelivskvalitetsinstrumenten är Oral Health Impact Profile (OHIP)som innehåller 49 frågor, i 7 undergrupper. Med vetenskapligöversättningsmetodik utvecklades en svensk version, OHIP-S ochdenna testades på 145 patienter i fem kliniskt skilda grupper. Datapresenteras som stödjer god reliabilitet och validitet.Delstudie II. Käkfunktions-skalan (JFLS) utvecklades och 132patienter från fem diagnostiska grupper deltog. En expertgruppidentifierade 52 frågor avseende begränsad käkfunktion och medRasch-metodologi värderades och reducerades antalet frågor.Instrumentet som omfattar 20 frågor uppvisar goda psykometriskaegenskaper. Även en kortare version JFLS-8 kan användas som enövergripande skala. Delstudie III. Beskriver hur Orofaciala Estetik-skalan (OAS)utvecklades. Efter att det teoretiska begreppet Orofacial estetikdefinierats, intervjuades protetikpatienter utifrån foton av sigsjälva, vilket genererade 28 preliminära frågor. Efter att enfokusgrupp reducerat antalet frågor till 8 genomfördes ett pilottest,och därefter utarbetades det slutgiltiga instrumentet bestående av 8frågor rörande utseende: Ansikte, Profil, Mun, Tandrad, Tandform,Tandfärg, Tandkött och Övergripande intryck. Exploratoriskfaktoranalys stödjer OAS unidimensionalitet och instrumentetär översatt till engelska.Delstudie IV. De psykometriska egenskaperna hos OAS utvärderadespå 119 patienter från fyra grupper (estetiska problem,funktionella problem och två ålders- och könsmatchade kontrollgrupper).God reliabilitet och validitet kunde påvisas för OAS.Delstudie V. Normativa värden för OAS erhölls från en störrepostal nationell enkätundersökning (N=3000). Av de 1406individer som svarade på enkäten hade 1159 besvarat samtligafrågor. Signifikanta skillnader fanns för ålder, kön, självrapporteradoral och generell hälsa för OAS. Andelen individer somrapporterade att de var ”mycket nöjda”(10 poäng) varierademellan 17 % (”färgen på tänderna”) och 30 % (”ansiktets utseende”och ”profil”).De utvecklade instrumenten förefaller lämpade för fortsatt forskningoch som kliniska mätvariabler i populationer med funktionellaoch estetiska behov, såsom protetikpatienter.

Abstract [en]

Among researchers and in the general population, awareness of theimpact of health and health care on the quality of human life isincreasing. An important medical and dental research area thataddresses this issue is health measurement scales and psychometrics.Such instruments have numerous uses, such as to screenpsychosocial aspects in individual patient care, assess perceivedhealth or disease in population surveys, measure outcome in clinicaltrials, and gather data for cost-utility analyses. Assessing andimproving oral health-related quality of life (OHRQoL), orofacialfunction, and orofacial aesthetics are three major goals in dentalcare. The overall aim of this thesis was to describe how threeassessment tools were developed—using current scientificmethodology—to measure these concepts in the Swedish culture.This thesis comprises five studies.In article I, recommended guidelines were used to translate theOral Health Impact Profile (OHIP), an OHRQoL instrument, intoSwedish. A group of 145 consecutive patients comprising fivediagnostic groups participated in reliability and validity evaluationsof OHIP-S, the Swedish OHIP version. Data supported excellentreliability and acceptable validity.In article II, the Jaw Functional Limitation Scale (JFLS) wasdeveloped, and reliability and validity were assessed in 132consecutive patients from five diagnostic groups. An expert panelidentified 52 functional limitation items. Rasch methodologyreduced the number of items to 20 and assessed model fit. Threeconstructs were identified—mastication, vertical jaw mobility, andemotional and verbal expression—and good reliability and validity were found. The JFLS-20 is an organ-specific instrument forassessing functional status of the masticatory system while theshorter JFLS-8 assesses global functional limitation.Article III describes development of the Orofacial AestheticScale (OAS), in particular its conceptual framework, measurementmodel, and method of questionnaire item generation. Interviewand questionnaire data from 17 prosthodontic patients created aninitial 28-item pool. After focus group reduction and pilot testing,a final 8-item instrument was generated. Exploratory factoranalysis investigated OAS dimensionality, and item analysis wasperformed in 119 subjects. Forward and backward translationsand reconciliation produced an English version of the instrument.Exploratory factor analysis supported OAS unidimensionality.In article IV, psychometric properties of the OAS wereevaluated in 119 patients from four groups: aesthetically compromised,functional disability, and two age- and gender-matchedcontrol groups. Various methods of testing reliability and validitysupported good score reliability and validity.In article V, the OAS was part of a mail survey to a nationalsample of 3000 persons and normative values were derived. Surveyrespondents totaled 1406, and missing data were analyzed. Therewas a significant difference in OAS for age, gender, self-reportedoral health, and self-reported general health status groups. Subjectswho reported extreme satisfaction (item score of 10) variedbetween 17% for “color of the teeth” and 30% for “appearance offace” and “profile”.The OHIP, JFLS, and OAS are considered well suited for use inresearch and as clinical outcome measures in patients with functionaland aesthetic concerns, such as prosthodontic patients.

Place, publisher, year, edition, pages
Malmö University, Departments of Stomatognathic Physiology and Prosthetic Dentistry, 2010
Series
Swedish Dental Journal : Supplement, ISSN 0348-6672 ; 204
National Category
Dentistry
Identifiers
urn:nbn:se:mau:diva-7735 (URN)10169 (Local ID)91-7104-309-8 (ISBN)10169 (Archive number)10169 (OAI)
Available from: 2020-02-28 Created: 2020-02-28 Last updated: 2022-06-27Bibliographically approved

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Larsson, PernillaList, Thomas

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