Cross-cultural equivalence in translations of the oral health impact profile

Cervical cancer screening knowledge and associated factors among Eswatini women: A cross-sectional study

BACKGROUND

Over recent years, cervical cancer incidence and related mortality have steadily increased in Eswatini. Low cervical cancer screening uptake partly explains the situation. Cervical cancer screening-related knowledge is positively associated with screening uptake. Little is known about women's cervical cancer screening-related knowledge in Eswatini.

OBJECTIVE

This study aimed to assess cervical cancer screening knowledge and associated factors among Eswatini women eligible for screening.

METHODS

A cross-sectional study involving three hundred and seventy-seven women aged 25 to 59 selected from four primary healthcare clinics in Eswatini was conducted. A paper and pen survey assessed knowledge about cervical cancer risk factors, benefits of screening, the meaning of screening results, recommended screening intervals, and socio-demographics. Descriptive analyses were performed to assess participants' sociodemographic characteristics. Linear regression was applied to examine associations between cervical cancer screening-related knowledge and participants' sociodemographic characteristics.

RESULTS

Two hundred and twenty-nine (61%) participants answered 80% or more knowledge questions correctly. Compared to HIV-positive participants, HIV-negative participants had 0.61 times lower cervical cancer screening knowledge scores (β = -0.39, 95% CI: -0.56, -0.19, p = 0.03). Participants who travelled more than 30 minutes to the clinic had 0.3 times lower cervical cancer screening knowledge scores (β = -0.70, 95% CI: -1.15, -0.25, p < 0.01) compared to participants who travelled less than 30 minutes to the clinic.

CONCLUSIONS

Relatively high overall cervical cancer screening knowledge levels were observed among the study participants. Findings from the current study may inform future educational programs to create and sustain an accurate understanding of cervical cancer screening in Eswatini communities.

Structure and replicability of oral health-related quality of life networks across patients with schizophrenia and the general community

OBJECTIVES

Schizophrenia is a disabling mental disorder associated with severe social dysfunction. Individuals with long-term mental conditions have poorer Oral Health-Related Quality of Life (OHRQoL) compared to the general population, but little is known about the measurement properties of OHRQoL instruments in this group of patients. This study aimed to examine the replicability of OHRQoL networks across samples of the general community (GC) and patients with schizophrenia (PWS).

METHODS

Data were obtained from 603 community-dwelling participants and 627 patients with schizophrenia. OHRQoL was measured using the short form of the Oral Health Impact Profile (OHIP-14) questionnaire. A regularized partial correlation network was estimated for each sample. The number of dimensions and structural stability were assessed using Exploratory Graph Analysis. Global strength, edge weights and centrality estimates were compared. Network replicability was examined fitting the PWS data to the GC network structure.

RESULTS

A single OHIP-14 dimension was identified in the GC sample, whereas three dimensions were detected in the PWS sample. Structural consistency was perfect in the network of GC participants (1), and considerably low in at least two dimensions of the PWS network (0.28; 0.65; 0.16). A moderate correlation for node strength estimates was observed (τ: 0.43; 95% CI: 0.13, 0.72), although edge weights were not correlated (τ: 0.025; 95% CI: -0.11, 0.16). The fit of the PWS data to the GC network structure was deemed unacceptable.

CONCLUSION

Network models of OHRQoL did not replicate across samples of the general community and outpatients with schizophrenia. Prudent use of OHIP-14 to compare measures of OHRQoL between groups with significant cognitive impartment and the general population is recommended.

Monolithic hybrid abutment crowns (screw-retained) versus monolithic hybrid abutments with adhesively cemented monolithic crowns

OBJECTIVES

The objective of this study is to compare monolithic hybrid abutment crowns (screw-retained) versus monolithic hybrid abutments with adhesively cemented monolithic single-tooth crowns.

MATERIALS AND METHODS

Twenty subjects in need of an implant-borne restoration were randomly assigned to receive either a cement-retained (CRR) or a screw-retained (SRR) implant-supported monolithic lithium disilicate (LS₂ ) reconstruction. Each patient received a titanium implant with in internal conic connection. After osseointegration and second-stage surgery, healing abutments were placed for about 10 days. The type of restoration (CRR vs. SRR) was randomly assigned, and the restorations were manufactured of monolithic LS₂ . Both types of restorations, CRR and SRR, were based on a titanium component (Ti-base) that was bonded to the abutment (CRR) or the crown (SRR). The follow-up period for all restoration was 36 months. Clinical outcome was evaluated according to Functional Implant Prosthetic Score (FIPS). Quality of live (OHIP) and patient's satisfaction were assessed using patient-reported outcome measures (PROMs). Primary endpoint was loss of restoration for any reason. Kaplan-Meier curves were constructed and log-rank testing was performed (p < .05).

RESULTS

One restoration of group CRR failed after 6 months due to loss of adhesion between Ti-base and individual abutment. No further biological or technical failures occurred. Kaplan-Meier analysis showed no significant difference between both treatment options (p = .317). There was no statistically significant difference between both types of restoration, neither for FIPS, OHIP, treatment time nor patient satisfaction (p > .05).

CONCLUSION

Monolithic hybrid abutment crowns (screw-retained) and monolithic hybrid abutment with adhesively cemented monolithic crowns using lithium disilicate showed no statistically significant difference for implant-based reconstructions in this pilot RCT setting.

Cross-cultural adaptations of the oral health impact profile - An assessment of global availability of 4-dimensional oral health impact characterization

OBJECTIVE

The 4-dimensional (4D) structure of oral health-related quality of life (OHRQoL), comprising of the dimensions Oral Function, Orofacial Pain, Orofacial Appearance, and Psychosocial Impact, is clinically plausible and psychometrically solid. The original Oral Health Impact Profile (OHIP) instrument and its short-form versions have been proven to lend themselves well to the assessment of these 4 OHRQoL dimensions. However, whether this 4-dimensional approach to oral health impact characterization can be performed on a global scale, that is, for most of the world's population, is not known. The purpose of this study was perform a systematic review to identify all cross-cultural adaptations of OHIP versions with 49, 20/19, 14, and 5 items. The global availability of 4D oral health impact characterization was investigated.

METHODS

We performed searches of electronic databases- Scopus, Pubmed, Web of Science, along with hand searching in June 2022 to identify all cross-cultural language adaptations of the different OHIP versions available in the literature. Whether the 4D oral health impact assessment can be considered a global approach was judged based on the criteria whether 4D psychometric information was available for at least 75% of the most widely spoken languages with an OHIP version.

RESULTS

We identified 82 studies with a total of 90 individual OHIP language versions for 45 languages. Among the top 20 languages with most first-language (native) speakers, 16 (80%) had OHIP versions. Among the top 20 languages with the most first- and second-language speakers, also 16 (80%) had OHIP versions. Of these 16 OHIP versions, across both language categories, 13 versions (81%) allowed for 4D oral health impact characterization.

CONCLUSION

Four-dimensional oral health impact assessment using the dimensions Oral Function, Orofacial Pain, Orofacial Appearance, and Psychosocial Impact can be considered a globally available approach given that OHIP versions with 4D information are readily available for most widely spoken languages. Thus, psychometrically sound, practical, and internationally comparable oral health impact characterization can be easily performed to study population oral health and determine oral disease impact and treatment efficacy for dental patients.

Dimensional structure of the OHIP-14 and associations with self-report oral health-related variables in home-dwelling Norwegians aged 70

OBJECTIVES

The primary objective of the present study was to investigate the dimensional structure of the OHIP-14 in a sample of elderly Norwegians. A secondary objective was to describe associations between the exposed OHIP-14 dimensions and additional self-report oral health-related variables to assess the dimensions' criterion validity.

MATERIALS AND METHODS

A survey questionnaire including the OHIP-14 and additional self-report oral health-related measures was completed by 325 home-dwelling Norwegians aged 70+. Exploratory factor analysis was used to investigate the dimensional structure of the OHIP-14 in this sample. Bivariate correlations were used to describe associations between the exposed OHIP-14 dimensions and additional self-report oral health-related variables.

RESULTS

Three dimensions named psychosocial impacts, oral function impacts and general function impacts were revealed. Convergent and discriminant validity of these dimensions were largely supported, and internal consistency reliability for each dimension was good. Statistically significant associations were found between the exposed dimensions and additional self-report oral health-related variables, supporting the dimensions' criterion validity.

CONCLUSIONS

A three-dimensional structure of the OHIP-14 was exposed and validated in the present study sample. Since different aspects of oral health-related quality of life (OHRQoL) may be perceived and weighted differently in various populations, suggestions for future research include more profound investigations of the construct validity of the OHIP-14 and similar instruments assessing OHRQoL. Such research should include an exploration of various dimensions and the weights given to them through qualitative research in the target population(s).

Does orthodontic treatment need have an impact on oral health-related quality of life?

OBJECTIVES

The aims of this study were to determine the frequency of oral health-related quality of life (OHRQoL) impairment in a national representative sample of 8 to 9 year olds in Germany and to evaluate the impact of orthodontic treatment need.

METHODS

Data were collected in the Sixth German Oral Health Study (Sechste Deutsche Mundgesundheitsstudie, DMS 6) and subjects were sampled using a multistage sampling technique. OHRQoL was measured with a modified version of the 5‑item Oral Health Impact Profile (OHIP-5) which was administered in a computer-assisted personal interview. Children were also examined for malocclusion and orthodontic treatment need.

RESULTS

In all, 1892 children aged 8-9 years were invited to take part. Finally, data of 705 children (48.6% female) could be included in the analysis. The OHIP‑5 mean was 1.3 (±2.0). There was no relevant influence from age and gender on the OHIP‑5 summary scores (r < 0.10), but the summary scores differed when analyzed separately regarding orthodontic treatment need or no orthodontic treatment need (1.5 ± 2.0 vs. 1.2 ± 1.9, p = 0.020). Nevertheless, the level appears to be low.

CONCLUSIONS

Malocclusions with orthodontic treatment need have an influence on OHRQoL.

Einfluss der Dauer kieferorthopädischer Behandlung auf das subjektive Empfinden der mundgesundheitsbezogenen Lebensqualität

Hintergrund Aufgrund der aktuell noch geringen Datenlage war es Ziel dieser Studie, den Einfluss der Dauer einer kieferorthopädischen Behandlung auf die mundgesundheitsbezogene Lebensqualität (MLQ) zu untersuchen.

Methode Die beobachtende, prospektive Längsschnittstudie erfolgte mit der deutschen Basisversion des Oral Health Impact Profile (OHIP-G14) im Zeitraum von 2008–2018. Die MLQ wurde zu drei Zeitpunkten (T1, T2, T3) bei 598 Patient*innen innerhalb ihrer kieferorthopädischen Behandlung erhoben und die Ergebnisse statistisch analysiert. Ein durchschnittlicher Anstieg (∆OHIP-G14) von>2,00 Punkten wurde als klinisch relevant (Minimal Important Difference, MID) und Zeichen einer herabgesetzten mundgesundheitsbezogenen Lebensqualität definiert.

Ergebnisse Von initial 598 eingeschlossenen Patient*innen füllten 79 ProbandInnen die Fragebögen zu allen drei Zeitpunkten vollständig aus und konnten in die Studie aufgenommen werden. Das Durchschnittsalter lag zu Beginn der Behandlung bei 11,5 Jahren (SD=3,3), am Ende der Behandlung bei 16,3 Jahren (SD=3,1). Die durchschnittliche Behandlungsdauer betrug 4,7 Jahre (SD=2,3). Ein Vergleich der erreichten Summenwerte zu den Zeitpunkten T1, T2, T3 der ernannten Subgruppen (Geschlechter, Altersgruppen, Behandlungsapparatur und -zeitraum) untereinander zeigte in keiner der Gruppen signifikante Unterschiede (Mann-Whitney-U-Test, Kruskal-Wallis-Test, Chi-Quadrat-Test p<0,05). Ein Vergleich der Gesamtwerte der jeweiligen Zeitpunkte zeigte eine klinisch (∆OHIP-G14>2,00) und statistisch signifikante Abnahme der MLQ während der initialen Behandlungsphase (T1 vs. T2, p<0,001). Die Verbesserung der MLQ am Ende der Behandlung (T2 vs. T3) war statistisch nicht signifikant (p=0,128) und hatte keine klinische Auswirkung (MID ∆OHIP-G14<2,00). Weitere Analysen der Behandlungsdauer und der OHIP-Summenwerte ergaben zu keinem Zeitpunkt signifikante Abhängigkeit oder Korrelation zwischen Behandlungsdauer und MLQ (β2=− 0,078, β3=0,191, multiple lineare Regression, p=0,05; r2=0,073, r3=0,103, Spearman Korrelation, p=0,05).

Schlussfolgerung Im Vergleich zu T1 war die MLQ während der Behandlung sowohl zu T2 als auch T3 leicht herabgesetzt. Es kann jedoch festgestellt werden, dass der Durchschnitt der erhobenen Summenwerte zu allen drei Zeitpunkten der Befragung (T1, T2 und T3) im Normbereich der gesunden Allgemeinbevölkerung lag. Hinsichtlich der Kernfrage dieser Studie konnte kein Zusammenhang zwischen Behandlungsdauer und MLQ gezeigt werden. Das Anstreben eines guten Behandlungsergebnisses im Rahmen einer differenzierten kieferorthopädischen Therapie sollte daher nach Möglichkeit einem raschen Abschluss der Behandlung vorangestellt werden.

Cross-cultural adaptation of oral health-related quality of life measures used to assess the impacts of malocclusion and dentofacial deformities in Saudi Arabia: A literature review

Since the World Health Organization broadened its definition of health, beyond biological boundaries, to include physical, emotional, and social wellbeing. Oral health-related quality of life (OHRQoL) became common outcome measure in clinical trials and epidemiological studies in Dentistry and Medicine. It is not surprising, therefore, to see quality of life as one of the programs of the Saudi 2030 vision. That said, it can be difficult to interpret the findings of OHRQoL research if the measures used were not appropriately adapted and validated in the population being studied. In this review article, the concept of cross-cultural adaptation of OHRQoL and its use in the Saudi context, as applied to orthodontic research, was discussed. An electronic search in PubMed and MEDLINE databases was conducted. A second search was conducted to locate methodological papers discussing cross-cultural adaptation and translations. Appraisal of relevant research was conducted to provide a better understanding of the process of adapting OHRQoL measures to assess the impact of malocclusion and dentofacial abnormalities on quality of life. This review pointed out important methodological concerns that warrant considerations during the translation and adaptation of OHRQoL measures.

Improving the measurement of oral health-related quality of life: Rasch model of the oral health impact profile-14

OBJECTIVES

The 14-item Oral Health Impact Profile (OHIP-14) is the most frequently used instrument to measure oral health-related quality-of-life (OHRQoL) in adults. Despite its popularity, its psychometric properties have been predominantly investigated based on the classical test theory while the fundamental principles of measurement have not been fully assessed. Therefore, our aim was to investigate to what extent the OHIP-14 meets the fundamental requirments of measurements.

METHODS

We used the Rasch model to explore person-item-targeting, unidimensionality, local independence of items, invariance (differential-item-functioning, DIF), and the order of thresholds between response-options in the German version OHIP-14. We used data from osteoarthritis patients because hand disabilities and joint pain might influence oral hygiene. Furthermore, osteoarthritis in the temporomandibular-joint directly affects oral functioning.

RESULTS

Five-hundred sixteen patients were included (mean age 66.5 years [±10.2; ranging from 34 to 89]; 71.3% [368] females). The OHIP-14 median total score was 0 (interquartile-range from 0 to 4), indicating a right-skewed distribution because many patients reported good OHRQoL. The instrument was found unidimensional. However, there was strong evidence of local dependency, disordered thresholds between response-options, and age-related DIF for item 5. A revised scoring scheme with three instead of five answer-options in all items and eliminating two items resolving local dependency, the newly adapted OHIP-12, showed better reliability and item-fit to the Rasch model than the original OHIP-14.

CONCLUSIONS

This study assesses, for the first time, the OHIP-14 in terms of fundamental principles of measurement and proposes an item-reduced OHIP-12 as a psychometrically more accurate version of the instrument.

CLINICAL SIGNIFICANCE

The Rasch model is essential to ensure instruments' precision and clinical meaningfulness when measuring OHRQoL in clinical practice and research. The OHIP-12, derived from the OHIP-14 by deleting two items due to local dependency, with a revised scoring scheme for all items distinguishing three answer-options instead of five, represents a psychometrically improved version of the instrument.

Does oral health-related quality of life of patients after solid organ transplantation indicate a response shift? Results of a systematic review

Background

The physical oral health and dental behaviour of patients after solid organ transplantation (SOT) has repeatedly been reported as insufficient. The objective of this systematic review was to detect whether the oral health-related quality of life (OHRQoL) of patients after SOT is reduced compared to that of healthy individuals.

Methods

A systematic literature search was performed by two independent individuals based on the PubMed, Web of Science and Scopus databases by using the following search terms: “transplantation” AND “oral health-related quality of life”. The findings were checked to determine eligibility, whereby publication prior to 31 October 2020, examination of adult patients (age at least 18 years) with SOT, reporting of an OHRQoL outcome and full text in English language were the prerequisites for inclusion in the qualitative analysis. Quality appraisal of the included studies was performed using the Agency for Healthcare Research and Quality methodology checklist.

Results

Seven of 25 studies that examined patients after kidney (3), heart (2), liver (1) and lung transplantation (1) were included. Four studies included healthy controls, and five studies included a cohort of patients before transplantation for comparison. Clinical oral health examinations were heterogeneous between groups. The majority of studies (5/7) applied the short form of the “Oral Health Impact Profile” (OHIP 14) to assess OHRQoL. The OHIP 14 values ranged between 1.7 and 8.9 across studies, indicating an unaffected or just slightly reduced OHRQoL. Only one study found better OHRQoL in patients after SOT compared to a group before SOT, and one study confirmed worse OHRQoL of SOT recipients compared to a healthy control. Only two studies revealed an association between OHRQoL and oral health parameters. Furthermore, two studies each found a relationship between OHRQoL and general health-related quality of life or disease-related parameters.

Conclusions

Patients after SOT show an unaffected or only slightly reduced OHRQoL, which was mainly independent of the insufficient oral status. This might indicate a shift in the perception threshold for oral diseases and conditions caused by the general health burden related to the SOT.

A Danish version of the oral health impact profile-14 (OHIP-14): translation and cross-cultural adaptation

Background

The Oral Health Impact Profile-14 (OHIP-14) questionnaire assesses quality of life related to people’s perception of oral disorders on their well-being. However, a translated and validated Danish version of OHIP-14 is not yet available.

The purpose of this pilot study was to translate and cross-culturally adapt the English version of the OHIP-14 into Danish (OHIP-14-DK). In addition, to assess its content and face validity, internal consistency and test-retest reliability.

Methods

The English version of OHIP-14 was translated into Danish following a standard protocol of cross-cultural adaptation. Stages I-IV: translation phase to generate a pre-final version “OHIP-14-DK”. Stage V: pre-testing phase. A random sample of 22 orthodontic patients (mean age 24.7 years, SD ±14.8; 14 females, 8 males) were selected at the Section of Orthodontics, Aarhus University, Denmark. All patients self-completed the OHIP-14-DK and were then interviewed to assess its content and face validity. Internal consistency was assessed with Cronbach’s alpha coefficients. All patients completed the same questionnaire again at a one-week interval. Test-retest reliability was assessed using Spearman’s correlation coefficient and intra-class correlation coefficient (ICC).

Results

The initial and back translations were very similar: the OHIP-14-DK proved to have a good level of equivalence with no translation errors or deviations. Furthermore, the OHIP-14-DK seemed well-adapted to Danish culture and was understood by individuals down to 12 years of age. Pre-testing demonstrated good face and content validity; interviews had a response rate of 100% and confirmed that each item was understandable without inducing reluctance or hesitation. Thus, responses were related to their corresponding item. Therefore, no final adjustments were required for the pre-tested version. Cronbach’s alpha for the OHIP-14-DK subscales fell in the 0.75–0.84 range, indicating an adequate-to-good internal consistency. Spearman’s correlation coefficient for the OHIP-14-DK total score was 0.77. The ICC for the OHIP-14-DK total score was 0.91.

Conclusions

The OHIP-14-DK seems well adapted to Danish culture, proved to be face and content valid and also showed good internal consistency and excellent reliability. However, its psychometric properties still need to be tested.

Study registration

Not applicable

Four-dimensional oral health-related quality of life impact in children: A systematic review

Oral health‐related quality of life (OHRQoL) is an important dental patient‐reported outcome which is commonly based on 4 dimensions, namely Oral Function, Orofacial Pain, Orofacial Appearance and Psychosocial Impact. The Oral Health Impact Profile (OHIP) is the most used OHRQoL instrument designed for adults; nevertheless, it is used off‐label for children as well. Our aim was to describe the OHRQoL impact on children measured by OHIP and map the information to the 4‐dimensions framework of OHRQoL. A systematic literature review following the PRISMA statement was conducted to include studies assessing OHRQoL of children ≤ 18 years using OHIP. The OHIP seven‐domain information was converted to the OHRQoL 4‐dimension scores accompanied by their means and 95% confidence interval. Risk of bias was assessed using a six‐item modified version of quality assessment tool for prevalence studies. We identified 647 articles, after abstracts screening, 111 articles were reviewed in full text. Twelve articles were included, and their information was mapped to the 4‐dimensional OHRQoL. Most included studies had low risk of bias. OHRQoL highest impact was observed for Oral Function, Orofacial Pain, and Orofacial Appearance for children with: Decayed‐Missing‐Filled‐Surface (DMFS) of ≥10, anterior tooth extraction without replacement and untreated fractured anterior teeth, respectively. Across all oral health conditions, Psychosocial Impact was less affected than the other three dimensions. OHIP has been applied to a considerable number of children and adolescents within the literature. One instrument and a standardised set of 4‐OHRQoL dimensions across the entire lifespan seem to be a promising measurement approach in dental and oral medicine.

Methodological considerations when measuring oral health-related quality of life

BACKGROUND

Dental patient-reported outcomes (dPROs) and their measures, dPROMs, are fundamental for evidence-based dentistry. However when selecting, applying and evaluating an instrument with a focus on OHRQoL assessment for adults, several methodological considerations are essential to derive valid and meaningful results.

METHODS

In this review article, criteria for selecting the appropriate OHRQoL instrument, aspects of administering the instrument and how to evaluate resulting scores of single and multiple assessments are presented and critically assessed.

RESULTS

Oral disease-generic and dimension-generic instruments capturing the entire construct OHRQoL allow for best comparability of findings across different diseases, settings and populations, with the Oral Health Impact Profile (OHIP) being the most often used and methodologically best investigated one. It is available in several versions with the 5-item version being the one with the lowest burden for the patient. Responses are given on a 5-point ordinal rating scale, the recommended response scale for dPROMs. A 7-day recall period allows for assessment of short-term effects. Clinically relevant effects of item or instrument order or administration method on OHIP scores do not seem to be likely. OHIP summary and dimension scores can be compared to norms from general population or different patient populations. Change scores should be set into context with the minimal important difference of the instrument.

CONCLUSION

OHIP-5 has greatest potential to be used across all settings for assessment and evaluation of OHRQoL in adults. It allows a comprehensive characterising of patients suffering from oral diseases and of this impact using OHRQoL dimensions.

A Psychometric Network Analysis of OHIP-14 across Australian and Brazilian Populations

OBJECTIVES

The aim of this study was to assess the structural validity of the Oral Health Impact Profile-14 (OHIP-14) instrument in Indigenous and non-Indigenous populations from Australia and Brazil using a network analysis approach.

METHODS

Cross-sectional data collected using OHIP-14 were obtained for Indigenous and non-Indigenous populations from Australia and Brazil. Networks were estimated using the Gaussian graphical model. Items of the OHIP-14 instrument are represented as nodes and the partial correlations between items as edges. Dimensionality was assessed using exploratory graph analysis. Structural consistency and item stability were computed using a bootstrap sampling method. Standardized node strength across each dimension was also calculated.

RESULTS

Four dimensions were identified across all samples, although the item arrangement of most dimensions presented variation. Similarities with the theoretical domains of the instrument were found. Items from the conceptually derived OHIP-14 domains formed separated clusters or blended with other items in a single dimension. Most dimensions across all samples showed an acceptable structural consistency. Item stability revealed some discrepancies among items of dimensions of both Indigenous networks.

CONCLUSION

The psychometric network perspective adopted in this study provides validation of the OHIP-14 structure in Indigenous and non-Indigenous populations. The structural consistency and item stability analyses showed that both Indigenous networks present a higher number of cross-domain items and less defined boundaries between dimensions. These findings indicate that OHIP-14 does not measure attributes in the same extent among different cultures.

KNOWLEDGE TRANSFER STATEMENT

This study demonstrates a new analytical framework from which to conceptualize and interpret the construct oral health-related quality of life using the Oral Health Impact Profile (OHIP-14). Network graphs facilitate knowledge translation of findings to professionals with no expertise in psychometric methods. OHIP-14 is a valuable tool to oral health research and clinical practice. Differences in conceptions of health may influence the extent that the instrument measures oral health impacts. Consequently, dimension scores do not always provide appropriate measures and should be avoided in research reports and assessments of treatment outcomes.

Cross-cultural adaptation, test-retest reliability, and construct validity of the Thai version of the University of Washington Pain-Related Self-Efficacy Scale

INTRODUCTION

One psychosocial factor in the biopsychosocial model is pain-related self-efficacy, which has been shown to be a strong predictor of response to pain treatment.

OBJECTIVES

To cross-culturally adapt the University of Washington Pain-Related Self-Efficacy Scale (UW-PRSE6) into Thai and evaluate its psychometric properties.

METHODS

The study was approved by the Chulalongkorn University Human Ethics Committee (COA No. 156/2018). The original UW-PRSE6 was cross-culturally adapted using the Functional Assessment of Chronic Illness Therapy translation methodology. Two hundred forty-one individuals with chronic low back pain completed the Thai version of UW-PRSE6 (T-UW-PRSE6), Thai Fear Avoidance Beliefs Questionnaire (T-FABQ), and Thai Medical Outcome Study Short-Form 36 (T-SF-36). A subset of 152 participants completed the T-UW-PRSE6 again after a 7-day interval. Cronbach's alpha and intraclass correlation coefficients were calculated to estimate internal consistency and test-retest reliability, respectively. The construct validity of the T-UW-PRSE6 was evaluated by computing Spearman correlation coefficients between the T-UW-PRSE6 score and the measures of the validity criterion variables.

RESULTS

The T-UW-PRSE6 had good internal consistency (Cronbach's alpha = 0.85) and moderate test-retest reliability (intraclass correlation coefficient [2,1] = 0.72). The T-UW-PRSE6 was negatively correlated with the T-FABQ Work and Physical Activity subscales (rs = -0.34 and -0.34, respectively) and positively correlated with the General Health, Physical Functioning, Role Physical, Role Emotional, Social Functioning, Bodily Pain, Vitality, and Mental Health scales of the T-SF-36 (rs = 0.38, 0.42, 0.54, 0.51, 0.47, 0.54, 0.41, and 0.40, respectively).

CONCLUSION

The T-UW-PRSE6 demonstrated acceptable psychometric properties for assessing pain-related self-efficacy in individuals with chronic low back pain, making available a measure for facilitating future cross-cultural research on pain self-efficacy.

Depression and quality of life in adults perceiving exposure to parental alienation behaviors

Background

The current study is aimed at examining the relationship between exposure to parental alienation (PA) behaviors, depression, and health-related quality of life (HRQoL) in Italian adults.

Methods

Four hundred ninety-one adults were tested. Participants filled out the following self-rating scales: The Baker Strategy Questionnaire (BSQ), the Beck Depression Inventory – II (BDI-II) and its brief version (6-item version of the BDI-II), the Short-Form 36 (SF-36) Health Survey for measuring HRQoL and its brief version including 3 items (WHO-3) of the 5-item World Health Organization Well-Being Index.

Results

Findings revealed statistically significant differences between participants who reported PA and those who did not. Participants who reported exposure to PA behaviors had higher scores on the original BDI-II and its 6-item version (p < 0.05, p < 0.01, respectively); they had also lower levels of HRQoL as resulting from 6 of the 8 SF-36 domains (at least p < 0.05), including lower scores on the WHO-3 (p < 0.01). Perceiving an exposure to PA behaviors significantly increased the likelihood of being above the clinical cut-off on the BDI-II (p < 0.01), the 6-item version of the BDI-II (p < 0.05), and the WHO-3 (p < 0.05). Moreover, perceiving an exposure to PA increased the odds of diminished HRQoL (OR = 2.43 and OR = 1.92 for general health and social functioning domains, respectively).

Conclusions

Childhood exposure to PA was related to higher likelihood of depressive symptoms and diminished HRQoL in adulthood. Our findings suggest the need for preventive and clinical interventions to protect vulnerable children involved in PA from negative outcomes.

Translation and validation of the Arabic version of the 5-item Oral health impact profile: OHIP5-Ar

Purpose

The aim of this study was to translate and validate an Arabic version of the 5-item Oral Health Impact Profile (OHIP).

Methods

A total of 320 subjects (aged 18 years and above) were consecutively recruited from dental clinics. The self-administered OHIP5-Ar was distributed and the data were collected and analyzed. The dimensionality of the instrument was investigated using confirmatory factor analyses (CFA). Reliability was assessed as the instruments internal consistency using Cronbach’s alpha and test-retest-reliability using intraclass correlation coefficient (ICC). Convergent validity was tested by correlation between perceived global oral and general health questions with the latent factor (OHRQoL) using structural equation modelling analysis and with OHIP5-Ar total score using spearman’s correlation coefficient. Known-groups validity was tested among groups with known differences and sensitivity to change was also investigated after dental treatments.

Results

The OHIP5-Ar was fitted well in the unidimensional model as indicated by the CFA with fit indices (RMSEA: 0.00, SRMR: 0.010, GFI: 0.998, TLI: 1). Cronbach’s alpha was 0.78 and the ICC agreement was 0.88. The validity tests indicated satisfactory validity of the instrument and the sensitivity to change of the instrument revealed significant change in the OHIP5-Ar total score after the provision of dental treatments (effect sizes: 0.55–1.49).

Conclusion

The OHIP5-Ar showed satisfactory psychometric properties among Arabic-speaking population. This instrument is sensitive to the changes of oral health and can be used to measure the OHRQoL with one total score.

Oral health-related quality of life in patients with upper gastrointestinal and hepatic disorders in Pakistan: validation of the Oral Health Impact Profile-14 in the Urdu language

Introduction

The Oral Health Impact Profile (OHIP-14) has been used extensively to measure the impact of oral disease on oral health-related quality of life (HRQoL) but has not been validated in the Urdu language or tested in gastroenterology.

Aims

To validate the OHIP-14 for use in Pakistan and its ability to assess oral health in patients with upper gastrointestinal (GI) and hepatic disorders.

Design

Multicentre, cross-sectional.

Setting

Four major tertiary care hospitals.

Methods

The OHIP-14 was tested for reliability and validity in 700 patients referred for oesophago-gastro-duodenoscopic (OGD) investigation of the symptoms of upper GI or hepatic disease. Socio-demographic details and oral examination findings (for oral lesions and DMFT) were recorded.

Results

The mean (±standard deviation) total OHIP-14 score (range 0–56) was estimated to be 23.38 ± 10.47, indicating a significant impact of upper gastrointestinal and hepatic disorders on oral health. The reliability coefficient of the OHIP-14 was above 0.7 threshold, and the tool had good internal consistency (α = 0.83). When associated with worsening DMFT (decayed, missed, and filled teeth) index value, the highest correlations (p < 0.01) were detected with functional limitation (rs = 0.234), physical disability (rs = 0.230), and psychological discomfort (rs = 0.221).

Conclusion

The OHIP-14 is a precise and valid instrument for assessing oral-HRQoL in a gastroenterological setting amongst Pakistani population.

What makes a tool appropriate to assess patient-reported outcomes of periodontal disease?

Context

Patient-reported outcomes (PROs) have become primary or secondary outcome measure in clinical trials and epidemiological studies in Medicine and Dentistry in general and Periodontology in particular. PROs are patients' self-perceptions about consequences of a disease or its treatment. They can be used to measure the impact of the disease or the effect of its treatment. There are insufficient data in Periodontology related to scale development methodology although, recently, there is an increase in the number of published studies utilizing such tools in major journals.

Aim

This paper is an overview of the development methodology of new PRO tools to study the impact of periodontal disease.

Materials and Methods

The iterative process begins with a research question. A well-constructed a priori hypothesis enables validity assessment by hypothesis testing. The qualitative steps in item generation include literature review, focus group discussion, and key informant interviews. Expert paneling, content validity index, and pretesting are done to refine and sequence the items. Test-retest reliability, inter-rater reliability, and internal consistency reliability are assessed. The tool is administered in a representative sample to test construct validity by factor analysis.

Conclusion

The steps involved in developing a subjective perception scale are complicated and should be followed to establish the essential psychometric properties. The use of existing tool, if it fulfills the research objective, is recommended after cross-cultural adaptation and psychometric testing.

Multistep translation and cultural adaptation of the Penn acoustic neuroma quality-of-life scale for German-speaking patients

BACKGROUND

Monitoring the health-related quality of life (HRQOL) for patients with vestibular schwannoma (VS) has garnered increasing interest. In German-speaking countries, there is no disease-specific questionnaire available similar to the "Penn Acoustic Neuroma Quality-of-life Scale" (PANQOL).

METHOD

We translated the PANQOL for German-speaking patients based on a multistep protocol that included not only a forward-backward translation but also linguistic and sociocultural adaptations. The process consists of translation, synthesis, back translation, review by an expert committee, administration of the prefinal version to our patients, submission and appraisal of all written documents by our research team. The required multidisciplinary team for translation comprised head and neck surgeons, language professionals (German and English), a professional translator, and bilingual participants. A total of 123 patients with VS underwent microsurgical procedures via different approaches at our clinic between January 2007 and January 2017. Among these, 72 patients who underwent the translabyrinthine approach participated in the testing of the German-translated PANQOL.

RESULT

The first German version of the PANQOL questionnaire was created by a multistep translation process. The responses indicate that the questionnaire is simple to administer and applicable to our patients.

CONCLUSION

The use of a multistep process to translate quality-of-life questionnaires is complex and time-consuming. However, this process was performed properly and resulted in a version of the PANQOL for assessing the quality of life of German-speaking patients with VS.

Cross-cultural equivalence in translation of the oral health impact profile: how to interpret the final score?

The oral health impact profile (OHIP) is one of the most widely known oral health-related quality of life instruments. In Community Dentistry and Oral Epidemiology, MacEntee and Brondani report the results of a systematic review to identify acceptable methods for translating psychometric instruments for cross-cultural equivalence of the OHIP scale. But in no study has unidimensionality, one aspect of the validity of the internal structure of the scale, been verified, whereas it is a major psychometric step. In the absence of the study of unidimensionality, it is difficult to interpret the final score. The methodology of transcultural validation of the OHIP could be improved, and the study of the unidimensionality is a psychometrically necessary step for the interpretation of the finale score.

The use of Subject Matter Experts in Validating an Oral Health-Related Quality of Life measure in Korean

OBJECTIVES

This paper aimed to employ subject matter experts (SMEs) to assess the extent to which the Korean version of the short-form of the OHIP (OHIP-14 K) is culturally valid and equivalent in Korean.

METHODS

We approached 17 bilingual Korean SMEs from which 10 independently rated the clarity, relevance, and cultural equivalence of the OHIP-14 K. SME's varied between 10 and 41 years of clinical experience and were mostly males (# 7). We used Item-level Content Validity Index (I-CVI) to gauge the proportion of SMEs who considered the content of OHIP items (e.g., instruction, response format, etc.) to be culturally valid. We also performed additional analysis to determine the level of agreement between the SMEs.

RESULTS

The experts rated most of the items to be clear (S-CVI = 0.93) while having difficulties in assigning relevance of the questions to the expected domains (S-CVI = 0.42). Moreover, considerable disagreement existed among the experts in regard to the relevance (Kfree = 0.19 to 1.00) and the cultural equivalence indexes (ADM = 0.36 to 0.96). The content of the OHIP-14 K for the most part clearly reproduced the language of the original OHIP-14. However, experts disagreed on the relevance and conceptual equivalence of the OHIP-14 K for a Korean population.

CONCLUSIONS

Patient-oriented outcome measures such as the OHIP can be used across cultures once there are indeed assessing the same domains and constructs of interest. The CVI technique seems to be an alternative tool for evaluating content validity and equivalency of an OHQoL measure. A more refined, culturally relevant version of OHIP-14 K was proposed although there is no available data yet to support a better score validity, reliability and responsiveness of this proposed version.