Qualitative assessment of the content validity of the Dermatology Life Quality Index in patients with moderate to severe psoriasis

Patient-Reported Outcome Measures for Health-Related Quality of Life in Patients With Psoriasis: A Systematic Review

Importance

Multiple patient-reported outcome measures (PROMs) for health-related quality of life (HRQL) exist for patients with psoriasis. Evidence for the content validity and other measurement properties of these PROMs is critical to determine which HRQL PROMs could be recommended for use.

Objective

To systematically review the validity of HRQL-focused PROMs used in patients with psoriasis.

Evidence Review

Using PubMed and Embase, full-text articles published in English or Spanish on development or validation studies for psoriasis-specific, dermatology-specific, or generic HRQL PROMs were included. Development studies included original development studies, even if not studied in psoriasis patients per Consensus-Based Standards for the Selection of Health Measurement Instruments (COSMIN) recommendations. If a study included multiple diagnoses, more than 50% of patients had to have psoriasis or psoriasis-specific subgroup analyses available. Data extraction and analysis followed the COSMIN guidelines. Two independent reviewers extracted and analyzed the data, including PROM characteristics, quality of measurement properties (structural validity, internal consistency, cross-cultural validity, reliability, measurement error, criterion validity, construct validity, and responsiveness), and level of evidence. PROMs were classified into 3 levels of recommendations: (1) PROM recommended for use; (2) PROM requires further validation; and (3) PROM not recommended for use.

Findings

Overall, 97 articles were identified for extraction. This included 19 psoriasis-specific, 8 skin-specific, and 6 generic PROMs. According to COSMIN standards, most measures identified received a B recommendation for use, indicating their potential but requiring further validation. Only the Rasch reduced version of the Impact of Psoriasis Questionnaire (IPSO-11 Rasch) received an A recommendation for use given that it had sufficient content validity, structural validity, and internal consistency.

Conclusions and Relevance

This study identified a significant lack of information concerning the quality of HRQL measures in psoriasis. This gap in knowledge can be attributed to the fact that traditional measures were developed using validation criteria that differ from the current standards in use. Consequently, additional validation studies in accordance with contemporary standards will be useful in aiding researchers and clinicians in determining the most suitable measure for assessing HRQL in patients with psoriasis.

Translation and measurement properties of the pelvic floor distress inventory-short form (PFDI-20) in Iranian reproductive age women

BACKGROUND

Every year, millions of women worldwide suffer in silence from pelvic floor disorders (PFDs) as an annoying health problem. Despite the high prevalence rate and negative effects of PFDs on the quality of life, the validity and reliability of pelvic floor distress inventory-short form (PFDI-20) has not been confirmed for Iranian women of reproductive age. Hence, this study aimed to determine measurement properties of PFDI-20 among women of reproductive age in Tabriz, Iran.

METHODS

The current study was cross-sectional research that selected 400 women of reproductive age referring to health centers in Tabriz City, by using cluster random sampling from May 2022 to September 2022. Measurement properties of the Persian version of PFDI-20 were determined and evaluated through five steps, including content and face validity within two quantitative and qualitative parts, structural validity by using exploratory factor analysis (EFA) and confirmatory factor analysis (CFA), and reliability testing through internal consistency, test-retest reliability, and measurement error. Moreover, ceiling and floor effects were investigated.

RESULTS

In this research, CVI (content validity index) and CVR (content validity ratio) of PFDI-20 equaled 0.94 and 0.97, respectively. In addition, the EFA process was applied to 20 items and derived the structure of three factors, which explained 58.15% of the total variance. In CFA phase, values of fit indicators (RMSEA = 0.07, SRMR = 0.07, TLI = 0.97, CFI = 0.99, x2/df = 3.19) confirmed the model validity. To determine reliability, Cronbach's alpha = 0.84; McDonald's omega (95% CI) = 0.84 (0.82 to 0.87) and Intraclass Correlation Coefficient (95% CI) = 0.98 (0.97 to 0.99) were obtained. Also, the SEM was 2.64, and the SDC indicating the smallest individual change was 8.91. Regarding the inventory feasibility, the ceiling effect was not observed in total value and subscales, while the floor effect in the total score of PFDI-20 equaled 24.0. The latter rate equaled 45.8, 38.3, and 50.8 for subscales POPDI-6, CRADI-8, and UDI-6, respectively.

CONCLUSIONS

Persian version of PFDI-20 is a valid and reliable scale used to evaluate PFDs in Iranian women of reproductive age. Healthcare professionals can use this scale to screen PFDs, and researchers can consider it a reliable tool for their studies.

Effect of birth plans integrated into childbirth preparation classes on maternal and neonatal outcomes of Iranian women: A randomized controlled trial

Background

Involvement of women in the decision-making process during childbirth plays an important role in their physical and psychosocial preparation. A birth plan allows the woman to express her expectations and facilitates her participation in her own care. The present study is the first to assess the implementation of birth plans integrated into childbirth preparation classes in Tehran, Iran.

Methods

This study is a randomized controlled clinical trial performed on 300 pregnant women at 32-33 weeks of gestation referring to four public health centers in Tehran, Iran. The participants were randomly allocated into intervention and control groups using block randomization method. A training session on the items of the birth plan checklist was held in the fifth session of childbirth preparation classes for the participants in the intervention group. Accordingly, a birth plan was prepared according to the requests of mothers. The birth plan was implemented after the women were admitted to the maternity ward. The primary outcomes were frequency of vaginal birth, mean duration of labor stages, and mean score of childbirth satisfaction. We used a checklist of maternal and neonatal outcomes, Mackey's childbirth satisfaction questionnaire, and a partogram form for data collection. Independent t-test, Mann-Whitney U-test, Chi-square test, Fisher's exact test, and logistic regression were used for data analysis.

Results

Vaginal birth rates were significantly higher in women who had birth plans compared with those without (81.9% vs. 48.7%, p < 0.001). Also, the lengths of the first and the second stages of labor were significantly shorter in women having a birth plan (p = 0.02). Women in the birth plan group were significantly more satisfied with the process of labor and childbearing (p < 0.001), and started breastfeeding after birth earlier than those in the control group (p < 0.001).

Conclusion

Having a birth plan and attending childbirth preparation classes can increase the rate of normal vaginal birth. Also, according to our results, women's participation in the decision- making process and fulfilling their preferences during birth can improve maternal and neonatal outcomes and childbirth satisfaction.Trial registration: IRCT20190415043283N2. 2020-12-07.

Developing an implementation fidelity checklist for a vocational rehabilitation intervention

BACKGROUND

Despite growing numbers of studies reporting the efficacy of complex interventions and their implementation, many studies fail to report information on implementation fidelity or describe how fidelity measures used within the study were developed. This study aimed to develop a fidelity checklist for measuring the implementation fidelity of an early, stroke-specialist vocational rehabilitation intervention (ESSVR) in the RETAKE trial.

METHODS

To develop the fidelity measure, previous checklists were reviewed to inform the assessment structure, and core intervention components were extracted from intervention descriptions into a checklist, which was ratified by eight experts in fidelity measurement and complex interventions. Guidance notes were generated to assist with checklist completion. To test the measure, two researchers independently applied the checklist to fifteen stroke survivor intervention case notes using retrospective observational case review. The scoring was assessed for interrater reliability.

RESULTS

A fidelity checklist containing 21 core components and 6 desirable components across 4 stages of intervention delivery was developed with corresponding guidance notes. Interrater reliability of each checklist item ranged from moderate to perfect (Cohen's kappa 0.69-1).

CONCLUSIONS

The resulting checklist to assess implementation fidelity is fit for assessing the delivery of vocational rehabilitation for stroke survivors using retrospective observational case review. The checklist proved its utility as a measure of fidelity and may be used to inform the design of future implementation strategies.

TRIAL REGISTRATION

ISRCTN, ISRCTN12464275. Registered on 13 March 2018.

The development and validation of the Multidimensional Paternal Perinatal Scale (MPPS)

The limited availability of screening tools for assessing fathers' emotional well-being during the perinatal period warrants the development of a new measure, especially since the existing measurements did not specifically focus on fathers' perinatal experiences. These existing measurements focus on the assessment of clinical symptoms rather than precursors that may negatively impact on perinatal father's well-being. Based on the paternal perinatal conceptual framework, the Multidimensional Paternal Perinatal Scale (MPPS) was developed to identify precursors that contribute to the father's emotional well-being during the perinatal period. This paper examines three steps of measurement development. The first step comprised item development based on the literature and qualitative findings. The second step comprised conducting the qualitative and quantitative judgment analysis of the MPPS content validity. The third step assessed inter-rater reliability. Two versions of the MPPS were developed: the antenatal and postnatal versions. The antenatal version of the MPPS includes 75 items and targets 11 precursors of paternal perinatal emotional well-being, while the postnatal version includes 103 items and targets 13 precursors of poor emotional well-being. The validity analysis showed that both the antenatal and postnatal subscales met content validity requirements. The overall Content Validity Index (CVI) of the antenatal version was equal to .95 for clarity and .99 for relevance, while the postnatal version showed a CVI of .98 for clarity and .93 for relevance. The inter-rater reliability for each of the antenatal and postnatal versions of the MPPS showed an AC2 of .67. The exploratory factor analysis derived a five-factor solution for the ANT-MPPS, and eight-factor solution for POST-MPPS. Both versions of the MPPS showed acceptable internal consistency. Overall, the findings showed adequate indices for content validity and inter-rater reliability of the new Multidimensional Paternal Perinatal Scales. Additionally, the MPPS demonstrated an acceptable construct validity and internal consistency. Results demonstrate that both versions of the scale successfully characterised antecedents of emotional well-being and as such can be used to identify fathers at risk of poor emotional well-being in the antenatal and postnatal environments.

Treatment Outcome Measurement Instruments for Port Wine Stains: A Systematic Review of Their Measurement Properties

BACKGROUND

A plethora of outcome measurement instruments (OMIs) are being used in port wine stain (PWS) studies. It is currently unclear how valid, responsive, and reliable these are.

OBJECTIVES

The aim of this systematic review was to appraise the content validity and other measurement properties of OMIs for PWS treatment to identify the most appropriate instruments and future research priorities.

METHODS

This study was performed using the updated Consensus-Based Standards for the Selection of Health Measurement Instruments (COSMIN) methodology and adhered to PRISMA guidelines. Comprehensive searches in Medline and Embase were performed. Studies in which an OMI for PWS patients was developed or its measurement properties were evaluated were included. Two investigators independently extracted data and assessed the quality of included studies and instruments to perform qualitative synthesis of the evidence.

RESULTS

In total, 1,034 articles were screened, and 77 full-text articles were reviewed. A total of 8 studies were included that reported on 6 physician-reported OMIs of clinical improvement and 6 parent- or patient-reported OMIs of life impact, of which 3 for health-related quality of life and 1 for perceived stigmatization. Overall, the quality of OMI development was inadequate (63%) or doubtful (37%). Each instrument has undergone a very limited evaluation in PWS patients. No content validity studies were performed. The quality of evidence for content validity was very low (78%), low (15%), or moderate (7%), with sufficient comprehensibility, mostly sufficient comprehensiveness, and mixed relevance. No studies on responsiveness, minimal important change, and cross-cultural validity were retrieved. There was moderate- to very low-quality evidence for sufficient inter-rater reliability for some clinical PWS OMIs. Internal consistency and measurement error were indeterminate in all studies.

CONCLUSIONS

There was insufficient evidence to properly guide outcome selection. Additional assessment of the measurement properties of OMIs is needed, preferentially guided by a core domain set tailored to PWS.

Clinical Goals and Barriers to Effective Psoriasis Care

Engaging global key opinion leaders, the International Psoriasis Council (IPC) held a day-long roundtable discussion with the primary purpose to discuss the treatment goals of psoriasis patients and worldwide barriers to optimal care. Setting clear expectations might ultimately encourage undertreated psoriasis patients to seek care in an era in which great gains in therapeutic efficacy have been achieved. Here, we discuss the option for early treatment of all categories of psoriasis to alleviate disease impact while emphasizing the need for more focused attention for psoriasis patients with mild and moderate forms of this autoimmune disease. In addition, we encourage policy changes to keep pace with the innovative therapies and clinical science and highlight the demand for greater understanding of treatment barriers in resource-poor countries.

Online Care Versus In-Person Care for Improving Quality of Life in Psoriasis: A Randomized Controlled Equivalency Trial

This 12-month, pragmatic, randomized controlled equivalency trial evaluated whether an online, collaborative connected-health model results in equivalent improvements in quality of life compared with in-person care for psoriasis. Overall, 296 adults with physician-diagnosed psoriasis from ambulatory clinics were randomly assigned to either online or in-person care; all were analyzed for outcomes. In the online group, patients and primary care providers sought dermatologists' care directly and asynchronously online. The in-person group sought care face to face. Interventions did not allow blinding of participants; investigators were blinded during analysis. Across 12 months, for the online group, the mean ± standard deviation decline in Skindex-16 from baseline across follow-up visits was 9.02 ± 20.67 compared with 10.55 ± 23.50 for the in-person group. The difference in Skindex-16 between the two groups was -0.83 (95% confidence interval = -5.18 to 3.51), and this was within the equivalence margin (±7.0). For the online group, the mean ± standard deviation decline in Dermatology Life Quality Index was 1.64 ± 4.34 compared with 1.18 ± 4.77 for the in-person group. The difference in Dermatology Life Quality Index between the two groups was -0.45 (95% confidence interval = -1.29 to 0.38) and was within the equivalence margin (±2.5). In conclusion, the online model was as effective as in-person care in improving quality of life among psoriasis patients. This study was funded by the Patient-Centered Outcomes Research Institute and is registered on clinicaltrials.gov (NCT02358135).

Development of a Brazilian Food Truck Risk Assessment Instrument

This study aimed to develop and validate a checklist instrument as a first step for the risk assessment of the hygienic-sanitary practices and conditions of food trucks. We invited sixteen experienced experts in the food safety field to take part in the process. The checklist was designed based on the Codex Alimentarius, Brazilian resolutions Collegiate Board Resolution 216, Brazilian Collegiate Board Resolution 275, Brazilian Federal District Law no. 5.627 and Brazilian Federal District Normative Instruction 11. The preliminary version of the checklist—composed of 29 items (nine sections)—was evaluated by 13 experts. They evaluated the items regarding their importance (content validation) and clarity (semantic evaluation) by the Delphi technique. The criteria for the approval of the content validation (Likert scale from 1 to 5) and semantic evaluation (Likert scale from 0 to 5) processes were as follows: a minimum of 75% agreement among the experts (W-values ≥ 0.75) and a mean grade ≥ 4. We performed the complete validation process in three rounds. The final version of the assessment instrument comprised 39 items, following suggestions from experts to add or subdivide some questions. The checklist can be used to conduct inspections of food trucks by health surveillance auditors, of food truck vendors’ decision-making processes and also as a diagnostic tool. The application of this checklist will allow the effective risk assessment of the hygienic-sanitary practices and conditions in food trucks and potentially ensure consumers’ access to safe street food.

Health providers' communication skills training affects hypertension outcomes

OBJECTIVE

Hypertension is a common cardiovascular risk factor within the Iranian population, and this may be improved through changes in lifestyle. We aimed at improving hypertension outcomes and health literacy skills among hypertensive patients through communication skills training targeting health providers.

METHODS

A randomized controlled trial method was used to enroll 35 health providers and 240 hypertensive patients attending community-based healthcare practices in the Mashhad, Iran. We evaluated the effects of a communication skills intervention for primary care providers compared to usual care controls, on the hypertension outcomes, patient medication adherence, and self-efficacy, assessed at baseline and post-intervention. Bivariate analysis and the regression model were used to assess whether the health provider training improved outcomes.

RESULTS

Majority of participating patients were female (77.3%), less than high school education (80.3%), married (82.3%), and low income (82.3%), with mean age of 37 years. Following the educational intervention, there was a significant improvement (p < 0.05) in patient communication skills, self-efficacy, adherence to medication, and hypertension outcomes in the intervention compared to the control group.

CONCLUSIONS

The brief communication skills training for health care providers appear to be an efficient way to improve patient-provider communication skills and hypertension outcome among patients with uncontrolled BP.

Biologics and dermatology life quality index (DLQI) in the Australasian psoriasis population

BACKGROUND/OBJECTIVES

Psoriasis is a chronic condition that may require long-term treatment for disease control. This analysis utilizes data from the Australasian Psoriasis Registry with particular attention to the impact of biologic therapy on DLQI, and the differences between the biologics in terms of DLQI score change.

METHODS

A retrospective review of patients enrolled in the Australasian Psoriasis Registry from April 2008 to August 2016 was conducted. All subjects from the registry that had DLQI and Psoriasis Assessment Severity Index (PASI) scores recorded at a baseline time point of treatment commencement, in addition to week 12 and 24 post commencement were included in the study. A window of ±3 weeks was permitted at these time points. Multivariate linear regression analysis was undertaken to identify significant predictors associated with change in DLQI.

RESULTS

Significant predictors of reduction in DLQI and PASI score from baseline to week 24 include use of adalimumab, infliximab, secukinumab and ustekinumab. Other therapies, including etanercept and oral systemic agents did not show significant change. Each class of biologic showed significant reductions in DLQI score, with IL-12/23 blockade showing the greatest reduction. Significant predictors of lack of reduction in DLQI score include a baseline PASI score <16, and history of diabetes, alcoholism or uveitis.

CONCLUSIONS

Patients with moderate to severe chronic plaque psoriasis who are treated with biologics show the greatest reduction in DLQI score, compared with other treatments. Australian dermatologists are prescribing biologics when patients qualify for them in keeping with current guidelines.

Quality of Life in Infertile Menopausal Women; Development and Psychometric of an Instrument

INTRODUCTION

So far few studies have been designed to evaluate the quality of life instrument in infertile women.

AIM

The present study was decided to design a valid and reliable instrument to assess quality of life in Iranian infertile women in postmenopausal period.

MATERIALS AND METHODS

Both quantitative and qualitative research methods were applied. The process was divided into three main stages including: instrument development, instrument validity and instrument reliability. Instrument development used three main steps, including determining content domain, item generation and instrument construction. Instrument was validated using face validity, content validity and factor analysis. Both internal consistency and test-retest reliability methods were used to confirm the reliability of the questionnaire.

RESULTS

During content development, domain step obtained 83 items in all demission of life in infertile women. In the qualitative and quantitative face validity, 25 items had item impact less than 1.5 and were excluded from the questionnaire. In the content validity section, 17 items failure to obtain necessary score based on Lawshe formula, so were excluded from the questionnaire. Overall, 8 factors were extracted by factor analysis test. However, 67.38% of the total variance was explained by 4 factors, other 4 next factors explained the remaining 32.62% of the total variance. Totally, 34.01% of rotation variance was explained by first factor and 24.37% by second factor. In questionnaire internal consistency, 8 items had Cronbach's alpha 0.942.

CONCLUSION

Therefore, we recommend the use of present questionnaire as a valid tool to evaluate the quality of life in infertile women during postmenopausal period.

Design and Implementation Content Validity Study: Development of an instrument for measuring Patient-Centered Communication

INTRODUCTION

The importance of content validity in the instrument psychometric and its relevance with reliability, have made it an essential step in the instrument development. This article attempts to give an overview of the content validity process and to explain the complexity of this process by introducing an example.

METHODS

We carried out a methodological study conducted to examine the content validity of the patient-centered communication instrument through a two-step process (development and judgment). At the first step, domain determination, sampling (item generation) and instrument formation and at the second step, content validity ratio, content validity index and modified kappa statistic was performed. Suggestions of expert panel and item impact scores are used to examine the instrument face validity.

RESULTS

From a set of 188 items, content validity process identified seven dimensions includes trust building (eight items), informational support (seven items), emotional support (five items), problem solving (seven items), patient activation (10 items), intimacy/friendship (six items) and spirituality strengthening (14 items). Content validity study revealed that this instrument enjoys an appropriate level of content validity. The overall content validity index of the instrument using universal agreement approach was low; however, it can be advocated with respect to the high number of content experts that makes consensus difficult and high value of the S-CVI with the average approach, which was equal to 0.93.

CONCLUSION

This article illustrates acceptable quantities indices for content validity a new instrument and outlines them during design and psychometrics of patient-centered communication measuring instrument.

Patient-reported outcome measures in psoriasis: the good, the bad and the missing!

As a long-term condition, psoriasis demands significant personal and professional input for optimal self-management. Low levels of well-being and high levels of psychological distress in patients with psoriasis are associated with reduced resources for self-care. Patient-reported outcome (PRO) measures can be used to assess physical, social and psychological functioning in order to guide treatment. In this article, we systematically reviewed the development and validation of existing PRO measures. PubMed (Medline), PsycINFO and CINAHL were searched systematically using predefined search terms. The search was limited to articles in the English language relating to human subjects. Articles were selected for full review through explicit inclusion/exclusion criteria. PRO measures were critically reviewed in accordance with the published guidelines and theory on the development and validation of PROs. The search identified 967 abstracts; 71 of these articles met the criteria for full review. In these 71 articles, 45 PRO measures were found: 16 were specific to psoriasis, 21 assessed other dermatological conditions and eight were developed for generic nondermatological health conditions. The review revealed several limitations of the existing measures, including: (i) a composite structure assessing multiple, poorly-defined concepts; (ii) a lack of evidence for face and content validity; (iii) a failure to include both patient and clinician perspectives and requirements and (iv) a lack of evidence regarding the feasibility and acceptability for patients and physicians. No single PRO measure with adequate evidence of validity, reliability and sensitivity to change captures patient well-being in psoriasis. A valid, sensitive, specific and acceptable PRO that assesses the full impact of psoriasis on well-being is needed for the comprehensive clinical management of psoriasis.