Implementing well-being in the management of psoriasis: An expert recommendation.

Psoriasis causes detriment in a person's physical, mental and social health which impairs their quality of life (QoL). However, the current psoriasis management may not adequately address all relevant health domains. Since the goal of healthcare is to restore or maintain health, health outcomes should include all areas of the patient's overall health. Life satisfaction, QoL and patient well-being are essential to a comprehensive approach to the disease. With the inclusion of more people-centred policies, care of patients with psoriasis should evolve towards a holistic and integrated assessment of the disease impact, including subjective measures of well-being in order to encompass all aspects of health. The main objective of this expert review is to give the concept of well-being a place as an entity within the holistic therapeutic approach for patients with psoriasis. Identifying and defining common goals beyond the skin with the patient and testing them throughout the course of treatment will benefit and enhance treatment success. We propose a series of recommendations for application in clinical practice, providing tangible clinical guidance for implementing well-being in the management of psoriasis. Among the recommendations are the need to initially listen to the patient, to know their level of empowerment or what they want to achieve, their preferences in decision making, the evaluation of not only the physical but also the emotional impact of the disease (well-being), the definition of the aspects that can generate a cumulative deterioration of the disease throughout life, and a continuous assessment of the patient's preferences with the opinion of the expert clinician and the integration of the knowledge of external clinical evidence.

Cumulative life course impairment in patients with dermatological diseases, with a focus on psoriasis.

The concept of "Cumulative Life Course Impairment" (CLCI) characterizes the set of factors harmful to the lives of patients resulting from the stigma and physical and psychological impairment associated with different chronic diseases, which can accumulate irreversibly over the course of patients lives. The sum of these factors often makes it impossible for these individuals to enjoy their lives fully, intensely and adequately. On the other hand, CLCI also incorporates coping strategies, including external factors and personality characteristics, which may act as modulating or protective factors of vulnerability to the CLCI. Although psoriasis is the most studied dermatological disease in relation to its impact on quality of life and CLCI, several other chronic inflammatory diseases such as atopic dermatitis, hidradenitis suppurativa, and alopecia areata have also been evaluated in relation to the magnitude of the damage to patients lives.

Determining patient value profiles in psoriasis.

BACKGROUND: Healthcare professionals (HCPs) should strive to create the maximum value for their patients in which value is defined as the patient-relevant health outcomes achieved per costs made. However, currently it remains difficult to determine which outcomes matter to an individual psoriasis patient. OBJECTIVE: To define outcome profiles, or so called 'patient value profiles', within a cohort of psoriasis patients that can be translated to daily practice to increase value for the individual patient. METHODS: Hierarchical clustering on principal components (HCPC) was used to identify groups of patients sharing the same profile within an outcome ranking exercise. Once the clusters were defined, their characterization was provided based on a V-test. In a final step, a multi-class decision tree (MDT) based on relevant socio-demographic and clinical variables was built to allocate patients to a cluster. RESULTS: In the ranking exercise 120 patients participated. The median age was 50.0 (IQR 25.0) years and 36.7% were female. Median PASI score was 2.4 (IQR 5.2) and median duration of psoriasis was 17.0 (IQR 20.0) years. Primary treatment varied from topicals to biologicals. We found three distinct patient value profiles in this cohort (QoL, cost and treatment). A MDT was built which had an accuracy of 64%. CONCLUSION: We found three distinct patient value profiles in a cohort of psoriasis patients and patients can be easily assigned to one of these profiles based on a MDT. HCPs can use these profiles to steer psoriasis management accordingly allowing for a more goal-orientated approach.

Evaluation of Skindex-16 construct validity in routinely collected psoriasis data: a retrospective analysis of the relationship between overall physician global assessment scores and Skindex-16 and measure discordance.

Patient-reported outcome measures (PROMs) capture disease severity metrics from the patient's perspective, including health-related quality of life (HRQL). Disease-specific validation of PROMs improves their clinical utility. We evaluated construct validity (HRQL) for Skindex-16 in routinely seen psoriasis patients and characterized instances of discordance between Skindex-16 scores and clinician-reported outcome measure of disease severity. We retrospectively studied psoriasis patients seen by University of Utah Dermatology from 2016 to 2020. Cross-sectional construct validity was assessed using quantile regression and Spearman correlation between overall physician global assessment (OPGA) score and Skindex-16 scores. Longitudinal within-subject correlation was performed using linear mixed models. Discordance (10th percentile or lower OPGA and 90th percentile or higher Skindex-16 score [clear skin, poor HRQL; cspHRQL] or the reverse [severe skin, good HRQL; ssgHRQL]) was characterized descriptively. 681 first-visit patients with psoriasis were included. Median overall Skindex-16 score varied by ≥ 10 points across all levels of OPGA scores. OPGA and Skindex-16 domain scores were moderately correlated (emotions ρ = 0.54, functioning ρ = 0.47, and symptoms ρ = 53). Longitudinal correlations were similar (emotion ρxy = 0.54, functioning ρxy = 0.65, symptoms ρxy = 0.47). Visits with cspHRQL discordance occurred for each Skindex-16 domain (emotions = 7, functioning = 13, symptoms = 12). The ssgHRQL group was observed within the emotions (n = 1) and functioning (n = 23) domains. Median Skindex-16 scores are different between different levels of OPGA and show moderate cross-sectional and longitudinal correlation. This supports construct validity in patients with psoriasis. Severe discordance was rare and most often for those with clear skin but poor HRQL. These discordances can prompt further patient-clinician conversation.

Cognition/Psychological Burden and Resilience in Cutaneous T-Cell Lymphoma and Psoriasis Patients: Real-Life Data and Implications for the Treatment.

Background: Psoriasis and cutaneous T-cell lymphoma (CTCL) expose patients to chronic inflammation as well as physical and psychological disabilities, but the impact of such alterations on cognitive function is unknown. Objective: This study is aimed at determining if CTCL and psoriasis impact cognitive functioning in relation to psychological and health-related quality of life (HR-QOL) status. Methods: A cross-sectional study was performed in an outpatient dermatology clinic of a university teaching hospital. Thirty-nine subjects with CTCL (N = 20) or psoriasis (N = 19) who met eligibility criteria were included. The cognitive domains of memory, attention and processing speed, and executive function were assessed with standard neuropsychological tests. Subjects were assessed for depression, anxiety, and HR-QOL (using the SKINDEX-29 questionnaire). Results: Study participants were CTCL and psoriasis subjects; cognitive impairment was found in the domain of memory in 17.9% subjects with CTCL or psoriasis. Lower scores on executive function tests were predicted by higher (worse HR-QOL) SKINDEX-29 functioning scores (p = 0.01). A higher estimated baseline intellectual functioning predicted lower scores (better HR-QOL) on the symptoms and functioning domains of SKINDEX-29 (p = 0.01 and 0.02, respectively) and a statistical trend (p = 0.07) for the emotion domain. Memory and acute anxiety were adversely impacted by shorter disease duration (p = 0.01 for both). Conclusions: Memory impairment may be associated comorbidity in CTCL and psoriasis. Subjects with stronger cognitive resources appear to cope better with health-related quality of life (HR-QOL) challenges.

Translation into Spanish and field-testing of a new score for evaluating psoriasis severity: The Simplified Psoriasis Index (SPI). / Traducción al español y ensayos de campo de una nueva escala destinada a la valoración global de la gravedad de la psoriasis: el índice de psoriasis simplificado (SPI).

BACKGROUND: The simplified psoriasis index (SPI) was developed in the United Kingdom to provide a simple summary measure for monitoring changes in psoriasis severity and associated psychosocial impact as well as for obtaining information about past disease behavior and treatment. Two complementary versions of the SPI allow for self-assessment by the patient or professional assessment by a doctor or nurse. Both versions have proven responsive to change, reliable, and interpretable, and to correlate well with assessment tools that are widely used in clinical trials - the Psoriasis Area and Severity Index and the Dermatology Quality of Life Index. The SPI has already been translated into several languages, including French, Brazilian Portuguese, Dutch, Arabic, and Thai. OBJECTIVE: To translate the professional and self-assessment versions of the SPI to Spanish and to field test the translations. METHOD: A medically qualified native Spanish speaker translated both versions of the SPI into Spanish. The Spanish translations were discussed by comparing them to blinded back translations into English undertaken by native English speakers; the Spanish texts were then revised in an iterative process involving the translators, 4 dermatologists, and 20 patients. The patients scored their own experience of psoriasis with the self-assessment version and commented on it. The process involved checking the conceptual accuracy of the translation, language-related differences, and subtle gradations of meaning in a process involving all translators and a panel of both Spanish- and English-speaking dermatologists, including a coauthor of the SPI. RESULTS: The final self-assessment and professional Spanish versions of the SPI are presented in this manuscript. CONCLUSIONS: Castilian Spanish translations of both versions of the SPI are now available for monitoring disease changes in Spanish-speaking patients with psoriasis under routine clinical care.

Frequency and influence of "not relevant" responses on the Dermatology Life Quality Index among adults with atopic dermatitis.

PURPOSE: "Not relevant" responses (NRRs) on the Dermatology Life Quality Index (DLQI) are common among adults with psoriasis and may be associated with underestimation of disease burden. Little is known about "not relevant" responses among adults with atopic dermatitis. We aimed to examine the frequency of NRRs on the DLQI and to determine whether NRRs are associated with underestimation of disease burden among adults with atopic dermatitis. METHODS: Adults with atopic dermatitis were identified and evaluated via online survey. We evaluated the frequency of NRRs on the DLQI, stratified by sociodemographic characteristics. To examine the association between NRRs and other measures of disease burden, Patient-Oriented Eczema Measure (POEM), Patient-Oriented SCORAD (PO-SCORAD), and Short-Form (SF)-12 scores were compared between those who responded "not relevant" versus "not at all". RESULTS: Among 764 adults with atopic dermatitis, most had mild disease. The median (interquartile range [IQR]) POEM, PO-SCORAD, and DLQI scores were 5 (2-10), 24 (14-34), and 2 (1-6), respectively. Most (55.2%) also had at least one NRR, and 17.9% had 4 or more "not relevant" responses, with differences across several sociodemographic characteristics. There were no substantial differences in SF-12, POEM, and PO-SCORAD scores between those who responded "not relevant" versus "not at all". CONCLUSION: NRRs on the DLQI are common among adults with atopic dermatitis and differ across sociodemographic characteristics, suggesting issues with content validity. There is not a clear association between NRRs and other measures of disease severity among adults with mostly mild atopic dermatitis.

Ixekizumab treatment patterns and healthcare utilization and costs for patients with psoriasis.

Objectives: To describe ixekizumab treatment patterns, all-cause healthcare utilization, and costs among psoriasis patients.Methods: Adults diagnosed with psoriasis having ≥1 ixekizumab claim were selected from MarketScan® databases between March 01, 2016 and July 31, 2017. Patients were continuously enrolled for ≥6 months prior and ≥3 months after the index date (first ixekizumab claim) and followed until inpatient death, end of enrollment, or end of data. Treatment patterns included persistence, switching, and re-initiation. All-cause utilization and costs were reported per-patient-per-month (PPPM).Results: 801 patients (mean age 49 years; 55.8% male; median follow-up 201 days) were included. Among all patients, 87.4% were persistent (mean (median) duration 86 (75) days) Of the 12.6% of patients who discontinued ixekizumab, 11.9% re-initiated and 6.9% switched treatments. Mean (median) time to switching was 208 (206) days. Mean number of all-cause inpatient admissions and physician office visits PPPM were 0.01 and 0.72, respectively. Mean total cost PPPM was $8,371, of which pharmacy comprised $7,792. Ixekizumab costs, $7,079, occurred primarily during induction and were paid predominantly by health plans ($6,810 [96.2%]).Conclusion: Most (87.4%) ixekizumab users remained persistent during follow-up. Pharmacy was the primary driver of total healthcare costs, with the majority covered by health plans and <4% as patient out-of-pocket expense.

Characterization of Patients with Psoriasis in Challenging-to-Treat Body Areas in the Corrona Psoriasis Registry.

BACKGROUND: Real-world studies evaluating patients with challenging-to-treat localizations of psoriasis (scalp, nail, and palmoplantar) are limited. OBJECTIVE: To characterize patients with versus without psoriasis in challenging-to-treat areas seen in routine US clinical practice. METHODS: This retrospective observational study included all adult patients with psoriasis enrolled in the Corrona Psoriasis Registry between April 2015 and May 2018 who initiated a biologic therapy at registry enrollment. Patients were stratified by the presence of scalp, nail, or palmoplantar psoriasis (nonmutually exclusive groups). Patient demographics, clinical char-acteristics, disease activity, and patient-reported outcome measures (pain, fatigue, itch, EuroQol visual analog scale [EQ VAS], Dermatology Life Quality Index [DLQI], and Work Productivity and Activity Impairment questionnaire [WPAI]) were assessed at registry enrollment and compared between patients with versus without each challenging-to-treat area using nonparametric Kruskal-Wallis tests for continuous variables and χ2 or Fisher exact tests for categorical variables. Generalized linear regression models were used to estimate differences in disease activity and patient-reported outcomes between patients with versus without each challenging-to-treat area. RESULTS: Among 2,042 patients with psoriasis (mean age [±SD], 49.6 ± 14.7 years; 51.5% male), 38.4% had psoriatic arthritis (PsA), 38.1% had scalp psoriasis, 16.0% had nail psoriasis, 10.9% had palmoplantar psoriasis, and 26.2% had a combination of ≥2 challenging-to-treat areas and PsA; only 34.2% had body plaque psoriasis without PsA or challenging-to-treat areas. Patients in all challenging-to-treat groups reported higher (mean [95% CI]) itch (scalp, 58.01 [57.62-58.40] vs. 54.35 [53.99-54.72]; nail, 56.42 [56.02-56.81] vs. 55.59 [55.20-55.97]; palmoplantar, 60.22 [59.86-60.59] vs. 55.15 [54.79-55.54]) and lower EQ VAS (scalp, 68.12 [67.78-68.48] vs. 69.46 [69.12-69.81]; nail, 66.21 [65.89-66.55] vs. 69.48 [69.14-69.83]; palmoplantar, 66.21 [66.07-66.75] vs. 69.29 [68.94-69.94]) scores than those without the respective challenging-to-treat localization. Patients with nail or palmoplantar psoriasis reported higher pain, fatigue, and DLQI scores than those without. Higher proportions of patients with scalp or palmoplantar psoriasis reported work impairment compared with those without. CONCLUSION: Two-thirds of patients with psoriasis who initiated biologic therapy had PsA and/or ≥1 challenging-to-treat area. Patients with challenging-to-treat areas had worse patient-reported outcome scores than those without, indicating a significant burden of challenging-to-treat areas on patients' quality of life.

Estimated Frequency of Psychodermatologic Conditions in Alberta, Canada.

BACKGROUND: Psychodermatologic disorders are difficult to identify and treat. Knowledge about the prevalence of these conditions in dermatological practice in Canada is scarce. This hampers our ability to address potential gaps and establish optimal care pathways. OBJECTIVES: To provide an estimate of the frequencies of psychodermatologic conditions in dermatological practice in Alberta, Canada. METHODS: Two administrative provincial databases were used to estimate the prevalence of potential psychodermatological conditions in Alberta from 2014 to 2018. Province-wide dermatology claims data were examined to extract relevant International Classification of Disease codes as available. Claims were linked with pharmacy dispensation data to identify patients who received at least 1 psychoactive medication within 90 days of the dermatology claim. RESULTS: Of 243 963 patients identified, 28.6% had received at least 1 psychotropic medication (mean age: 47.9 years; 67.5% female). Rates of concurrent psychotropic medications were highest for pruritus and related conditions (46.7%), followed by urticaria (44.5%) and hyperhidrosis (32.8%). Among patients with psychotropic medications, rates of antidepressants were highest (56.3%), followed by anxiolytics (37.1%). Across billing codes, besides hyperhidrosis (71.2%), diseases of hair (61.4%) and psoriasis (59.1%) had the highest rates of antidepressant dispensations. Patients with atopic dermatitis had the highest rates for anxiolytic prescriptions (54.3%). CONCLUSION: In a 5-year window, more than a quarter of the identified dermatology patients in Alberta received at least 1 psychotropic medication, pointing to high rates of potential psychodermatologic conditions and/or concurrent mental health issues in dermatology. Diagnostic and care pathways should include a multidisciplinary approach to better identify and treat these conditions.

Research priorities and identification of a health-service delivery model for psoriasis from the UK Psoriasis Priority Setting Partnership.

BACKGROUND: Psoriasis impacts the health and psychosocial functioning of patients, conferring a significant economic burden on healthcare systems. There remain unmet needs in psoriasis care, which if addressed by research, could improve clinical outcomes. AIM: To research priorities and identify a health service delivery model from the UK Psoriasis Priority Setting Partnership (PsPSP). METHODS: Between July 2017 and November 2018, we invited people with lived experience of psoriasis and healthcare professionals to (i) identify unmet needs, and (ii) prioritize the order in which these should be addressed by research. We collaborated with the Psoriasis Association and used methodology established by the James Lind Alliance, which pioneers the joint setting of research priorities by patients and clinicians worldwide. RESULTS: In our initial harvesting survey (Survey 1), 2133 questions were submitted by 805 individuals. Submissions that had not been answered by research (true uncertainties) were supplemented with evidence gaps from systematic reviews/guidelines published in the previous 5 years and refined to produce 55 indicative questions. Voting in Survey 2, by 1154 individuals, enabled a shortlist of questions, which were prioritized during the final workshop to produce a top 20 list of research questions. Submissions on health service delivery (5.8% of the total submissions), which were analysed separately, described a blueprint for psoriasis care. CONCLUSIONS: The PsPSP will inform the translational research agenda, ensuring that future research is relevant for the needs of people with psoriasis and those who manage the disease. Submissions on health service delivery describe a model of holistic, patient-focused care providing high-quality, effective management for patients with psoriasis.

Study on the Impact of Psoriasis on Quality of Life: Psychological, Social and Financial Implications.

BACKGROUND: Psoriasis is a chronic and stigmatising disease with significant and hard to meet clinical needs in patient management. Psoriasis is a relatively common disease, affecting up to 2% of the population. The impact of psoriasis on quality of life is significant given its chronicity and visibility. Psychological stress is a well-established systemic triggering factor in psoriasis. It has been associated with initial presentation of the disease as well as exacerbations of pre-existing psoriasis. The purpose of this study is to assess the psychological, social and financial implications of psoriasis. SUBJECTS AND METHODS: 51 patients participated in this study. After dermatological examination and determination of Psoriasis Area and Severity Index score, patients were referred to a psychological consult. Assessment was done through questionnaires concerning quality of life, depression, anxiety, illness perception, financial domain and personal data. RESULTS: Results of our study indicate that psoriasis has a strong impact on patients' life. It influences working habits, poses a significant financial burden, but most of all, significantly impairs their quality of life and psychological status. CONCLUSION: Psoriasis poses a substantial threat to several dimensions in patient's quality of life. Patients feel that the current treatment, although often effective, does not provide a satisfactory long-term solution. Thus, long-term psychologic support for patients with psoriasis is desirable.

Disease burden and treatment needs of patients with psoriasis in sexually-sensitive and visible body areas: results from a large-scale survey in routine care.

Psoriasis may cause considerable disease burden. The involvement of sexually-sensitive/visible body areas has been associated with decreased quality of life (QoL), more depressive symptoms and stigmatisation experiences. To characterise the topical distribution of psoriasis in sexually-sensitive and visible areas, to examine its impact on QoL and to determine which specific patient needs should be addressed in routine care. Patients with psoriasis vulgaris were recruited within a cross-sectional nationwide survey, involving 157 randomly assigned German dermatology practices/clinics. The main outcome measures were the EuroQoL visual analogue scale (EQ VAS), the Dermatology Life Quality Index (DLQI), the Patient Needs Questionnaire (PNQ) and a grid scheme for topical distribution of psoriasis. The sample included 2,009 patients (43.7% female; 21.8% ≥ 65 years; 64.2% with lesions in sexually-sensitive areas and 86.2% with lesions in visible areas). Patients with concomitant involvement of sexually-sensitive and visible areas presented increased DLQI impairments relative to patients with no involvement of sexually-sensitive or visible areas (F(3, 1723) = 4.091, p = 0.007). Significant differences were also found for patient needs dimensions (PNQ) depending on the body areas affected (F(15, 4602) = 2.936, p < 0.001). Significant effects of gender and age group were also observed. Increased disease severity, lesions in both sexually-sensitive/visible or only visible areas, and increased QoL impairment were associated with specific patient needs. These results highlight the need for proactive evaluation of difficult-to-communicate impairments and the requirements for patient-centred routine care.

Assessment of Life Quality Index and Treatment Efficacy in Psoriasis Vulgaris Patients Receiving Biologic Therapies in a Turkish Population.

The introduction of biologic therapy has resulted in a major change in treatment efficacies, especially in conventional treatment-resistant psoriasis patients. This study is to assess the efficacy of biologic agents in conventional treatment-resistant patients regarding Psoriasis Area and Severity Index (PASI) and Dermatology Life Quality Index (DLQI) after therapy. Patients were monitored prospectively for 24 weeks after the initiation of etanercept, adalimumab, or ustekinumab therapy. PASI 75/90/100 responses and the number of patients with 0/1 DLQI score were compared. In the patients who used etanercept, adalimumab, and ustekinumab therapies, PASI 75 responses were found as 61.5%, 57.9%, and 84.6%, respectively, in the 12th week, while they were found as 72.7%, 76.9%, and 90.9% in the 24th week, and no statistically significant difference was found between the three groups (P > 0.05). The percentage of patients who had a DLQI score of 0 and 1 were 30.8%, 42.1%, and 38.5% in the 12th week (P = 0.92) and 36.4%, 61.5%, and 45.5% in the 24th week (P > 0.45) for etanercept, adalimumab, and ustekinumab therapies, respectively. As a result, no significant differences were found between biologic agents concerning improvement in both clinical response (PASI and VYA) and quality of life (DLQI and PDI).

Psychosocial burden and body mass index are associated with dermatology-related quality of life in psoriasis patients.

BACKGROUND: Scientific evidence indicates that inflammatory processes may be involved in the progression of both psoriasis and depression via elevated peripheral proinflammatory cytokines. OBJECTIVES: The aim of our study was to assess the association among psychological burden, depressive symptoms and proinflammatory mediators in psoriasis patients. MATERIALS AND METHODS: Forty psoriasis patients were recruited from the Department of Dermatology, University Hospital Essen. In addition to the Psoriasis Area and Severity Index (PASI), mental and physical health were explored using different questionnaires. Furthermore, proinflammatory cytokines were analysed. RESULTS: Patients in the high PASI group showed reduced Dermatology Life Quality Index (DLQI), higher body mass index (BMI), elevated CRP levels as well as impaired physical aspects of quality of life. Regression analyses revealed that somatic and anxiety symptoms accounted for more than 32% of the variance in DLQI, independent of PASI and cytokine levels. CONCLUSION: The data indicate somatic and anxiety symptoms, as well as BMI, to be closely linked to dermatology-related quality of life.

The landscape of psoriasis provision in the UK.

Psoriasis remains one of the commonest conditions seen in dermatological practice, and its treatment is one of the greatest cost burdens for the UK National Health Service. Treatment of psoriasis is complex, with numerous overlapping lines and therapies used in combination. This complexity reflects the underlying pathophysiology of the disease as well as the heterogeneous population that it affects. National Institute for Health and Care Excellence (NICE) guidance for the treatment of psoriasis has been available since 2013, and has been the subject of three national audits conducted by the British Association of Dermatologists. This report synthesizes the results of the most recent of those exercises and places it in the context of the NICE guidance and previous audits. It clearly shows the significant burden of disease, issues with provision of services and long waiting times and the marked shift in therapies towards targeted biologic therapies.

Evaluation of the Frequency of "Not Relevant" Responses on the Dermatology Life Quality Index by Sociodemographic Characteristics of Patients With Psoriasis.

Importance: "Not relevant" responses (NRRs) on the Dermatology Life Quality Index (DLQI) are common among patients with psoriasis and may be associated with an underestimation of disease severity. Objective: To evaluate the associations between (1) patient sociodemographic characteristics and the frequency of NRRs on the DLQI and (2) NRR frequency and treatment satisfaction. Design, Setting, and Participants: This cross-sectional study using data from the Dermatology Clinical Effectiveness Research Network from February 2010 to June 2011 assessed the responses on the DLQI of 1733 patients with psoriasis. Main Outcomes and Measures: Differences in the frequency of NRRs by sex, race/ethnicity, insurance type, income, educational attainment, marital status, and employment status were evaluated using the 2-tailed χ2 test. Multivariable logistic regression analysis was used to evaluate the associations between sociodemographic characteristics and having at least 1 NRR. Multivariable linear regression analysis was used to evaluate the association between having a DLQI score reclassified from 10 or less to more than 10 using the DLQI-Relevant scoring modification and the scores on the Treatment Satisfaction Questionnaire for Medication. Data were analyzed between July 2019 and November 2019. Results: Of 1733 patients with psoriasis, 879 (50.7%) were female, and 1470 (84.8%) were non-Hispanic white individuals. The DLQI items 6 (sport, 223 patients [12.9%]), 9 (sexual difficulties, 214 patients [12.3%]), and 7 (work or study, 126 patients [7.3%]) had the greatest frequency of NRRs. In multivariable logistic regression analysis, male sex (odds ratio [OR], 0.63; 95% CI, 0.48-0.82) and income of more than $100 000 (OR, 0.45; 95% CI, 0.26-0.79) were associated with decreased odds of NRRs. By contrast, single (OR, 1.85; 95% CI, 1.31-2.61) or widowed or divorced (OR, 2.60; 95% CI, 1.80-3.74) marital status and unemployed or disabled employment status (OR, 1.98; 95% CI, 1.35-2.89) were associated with increased odds of NRRs. Having a DLQI score that would be reclassified from 10 or less to more than 10 using the DLQI-Relevant scoring modification was associated with lower global satisfaction scores on the Treatment Satisfaction Questionnaire for Medication (coefficient, -9.8; 95% CI, -16.3 to -3.4). Conclusions and Relevance: There were sociodemographic differences in the frequency of NRRs on the DLQI among this cohort of patients with psoriasis. These differences may be associated with an underestimation of disease burden and treatment disparities owing to subsequent undertreatment among certain sociodemographic groups. Further study is needed to optimize the quality-of-life assessment among patients with psoriasis or other inflammatory skin diseases in diverse settings.

Investigator and Patient Global Assessment Measures for Psoriasis Clinical Trials: A Systematic Review on Measurement Properties from the International Dermatology Outcome Measures (IDEOM) Initiative.

BACKGROUND AND OBJECTIVE: The International Dermatology Outcome Measures (IDEOM) has defined a core set of domains to be measured in all psoriasis clinical trials. This set comprises the following domains: skin manifestations, psoriasis and psoriatic arthritis symptoms, health-related quality of life, investigator global, patient global, and treatment satisfaction. The next step is to define how to measure these domains. The objective of this article was to evaluate the quality of available instruments to assess 'investigator global' and 'patient global' domains to identify the most appropriate instruments. METHODS: Reviewers conducted a systematic literature review to retrieve studies on the measurement properties of instruments including either an investigator global assessment or a patient global assessment. Following the COnsensus based standards for the Selection of health Measurement INstruments (COSMIN) checklist, three independent reviewers rated the quality of each study. We then performed a qualitative synthesis of the evidence. RESULTS: We identified nine investigator global assessments and three patient global assessments, reflecting substantial variability in global assessment instruments. Overall, most measures lacked evidence for content validity and feasibility. The Lattice System-Physician Global Assessment, Product of the Investigator Global Assessment and Body Surface Area, and the professional-Simplified Psoriasis Index had higher levels of evidence for validity, reliability, and/or responsiveness than the 5- and 6-point investigator global assessments. The self-assessment-Simplified Psoriasis Index was the only patient global assessment with evidence for validity, reliability, and responsiveness. CONCLUSIONS: The 5- and 6-point investigator global assessments, which are the most widely used investigator global assessments in registered clinical trials, have less evidence for measurement properties as compared with the Lattice System-Physician Global Assessment, professional-Simplified Psoriasis Index, and the Product of the Investigator Global Assessment and Body Surface Area. However, all instruments lack evidence for content validity and feasibility. Further validation studies of investigator global assessments and patient global assessments are required to recommend the best global measure for psoriasis clinical trials.