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Dive into the research topics where Katrina Abuabara is active.

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Featured researches published by Katrina Abuabara.


British Journal of Dermatology | 2010

Cause-specific mortality in patients with severe psoriasis: a population-based cohort study in the U.K.

Katrina Abuabara; Rahat S. Azfar; D.B. Shin; Andrea L. Neimann; Andrea B. Troxel; Joel M. Gelfand

Background  Severe psoriasis is associated with excess mortality and increased risk of cardiovascular death. Population‐based data evaluating cause‐specific mortality in patients with psoriasis are limited.


Journal of The American Academy of Dermatology | 2011

The risk of infection and malignancy with tumor necrosis factor antagonists in adults with psoriatic disease: a systematic review and meta-analysis of randomized controlled trials.

Erica Dommasch; Katrina Abuabara; Daniel B. Shin; Josephine C. Nguyen; Andrea B. Troxel; Joel M. Gelfand

BACKGROUND There is a need to better understand the safety of tumor necrosis factor (TNF) inhibitors in patients with psoriatic disease in whom TNF inhibitors are frequently used as monotherapy. OBJECTIVE We sought to examine the risks of infection and malignancy with the use of TNF antagonists in adult patients with psoriatic disease. METHODS We conducted a systematic search for trials of TNF antagonists for adults with plaque psoriasis and psoriatic arthritis. We included randomized, placebo-controlled trials of etanercept, infliximab, adalimumab, golimumab, and certolizumab for the treatment of plaque psoriasis and psoriatic arthritis. Twenty of 820 identified studies with a total of 6810 patients were included. Results were calculated using fixed effects models and reported as pooled odds ratios. RESULTS Odds ratios for overall infection and serious infection over a mean of 17.8 weeks were 1.18 (95% confidence interval [CI] 1.05-1.33) and 0.70 (95% CI 0.40-1.21), respectively. When adjusting for patient-years, the incidence rate ratio for overall infection was 1.01 (95% CI 0.92-1.11). The odds ratio for malignancy was 1.48 (95% CI 0.71-3.09) and 1.26 (95% CI 0.39-4.15) when nonmelanoma skin cancer was excluded. LIMITATIONS Short duration of follow-up and rarity of malignancies and serious infections are limitations. CONCLUSIONS There is a small increased risk of overall infection with the short-term use of TNF antagonists for psoriasis that may be attributable to differences in follow-up time between treatment and placebo groups. There was no evidence of an increased risk of serious infection and a statistically significant increased risk in cancer was not observed with short-term use of TNF inhibitors.


British Journal of Dermatology | 2011

The effect of systemic psoriasis therapies on the incidence of myocardial infarction: a cohort study

Katrina Abuabara; Hang Lee; Alexa B. Kimball

Background  Psoriasis confers an independent risk of cardiovascular disease that is likely to be related to systemic inflammation. Anti‐inflammatory treatment could theoretically reduce the risk of cardiovascular disease, and initial data suggest that treatment may reduce the incidence of cardiovascular risk factors.


JAMA Dermatology | 2014

Persistence of Mild to Moderate Atopic Dermatitis

Jacob S. Margolis; Katrina Abuabara; Warren B. Bilker; Ole Hoffstad; David J. Margolis

IMPORTANCE Atopic dermatitis (AD) is a common illness of childhood. OBJECTIVE To evaluate the natural history of AD and determine the persistence of symptoms over time. DESIGN, SETTING, AND PARTICIPANTS A cross-sectional and cohort study of a nation-wide long-term registry of children with AD enrolled in the Pediatric Eczema Elective Registry (PEER). MAIN OUTCOMES AND MEASURES Self-reported outcome of whether a childs skin was AD symptom-free for 6 months at 6-month intervals. RESULTS A total of 7157 patients were enrolled in the PEER study for a total of 22,550 person-years. At least 2 years of follow-up were observed for 4248 children and at least 5 years of follow-up were observed for 2416 children. Multiple demographic and exposure variables were associated with more persistent AD. At every age (ie, 2-26 years), more than 80% of PEER participants had symptoms of AD and/or were using medication to treat their AD. It was not until age 20 years that 50% of patients had at least 1 lifetime 6-month symptom- and treatment-free period. CONCLUSIONS AND RELEVANCE Based on this large longitudinal cohort study, symptoms associated with AD seem to persist well into the second decade of a childs life and likely longer. Atopic dermatitis is probably a life-long illness.


British Journal of Dermatology | 2011

Validity of The Health Improvement Network (THIN) for the study of psoriasis

Nicole M. Seminara; Katrina Abuabara; D.B. Shin; Sinéad M. Langan; Stephen E. Kimmel; David J. Margolis; Andrea B. Troxel; Joel M. Gelfand

Background  Psoriasis is a common disease frequently studied in large databases. To date the validity of psoriasis information has not been established in The Health Improvement Network (THIN).


British Journal of Dermatology | 2016

Report from the fourth international consensus meeting to harmonize core outcome measures for atopic eczema/dermatitis clinical trials (HOME initiative)

Joanne R. Chalmers; Eric L. Simpson; Christian Apfelbacher; Kim S Thomas; L.B. von Kobyletzki; Jochen Schmitt; Jasvinder A. Singh; Åke Svensson; Hywel C. Williams; Katrina Abuabara; Valeria Aoki; M. Ardeleanu; M. Awici-Rasmussen; S. Barbarot; Teresa Løvold Berents; Joel A. Block; A. Bragg; T. Burton; K. K. Bjerring Clemmensen; A. Creswell-Melville; M. Dinesen; Aaron M. Drucker; L. Eckert; Carsten Flohr; M. Garg; L. A. A. Gerbens; A. L. B. Graff; Jon M. Hanifin; Daniel Heinl; Rosemary Humphreys

This article is a report of the fourth meeting of the Harmonising Outcome Measures for Eczema (HOME) initiative held in Malmö, Sweden on 23–24 April 2015 (HOME IV). The aim of the meeting was to achieve consensus over the preferred outcome instruments for measuring patient‐reported symptoms and quality of life for the HOME core outcome set for atopic eczema (AE). Following presentations, which included data from systematic reviews, consensus discussions were held in a mixture of whole group and small group discussions. Small groups were allocated a priori to ensure representation of different stakeholders and countries. Decisions were voted on using electronic keypads. For the patient‐reported symptoms, the group agreed by vote that itch, sleep loss, dryness, redness/inflamed skin and irritated skin were all considered essential aspects of AE symptoms. Many instruments for capturing patient‐reported symptoms were discussed [including the Patient‐Oriented SCOring Atopic Dermatitis index, Patient‐Oriented Eczema Measure (POEM), Self‐Administered Eczema Area and Severity Index, Itch Severity Scale, Atopic Dermatitis Quickscore and the Nottingham Eczema Severity Score] and, by consensus, POEM was selected as the preferred instrument to measure patient‐reported symptoms. Further work is needed to determine the reliability and measurement error of POEM. Further work is also required to establish the importance of pain/soreness and the importance of collecting information regarding the intensity of symptoms in addition to their frequency. Much of the discussion on quality of life concerned the Dermatology Life Quality Index and Quality of Life Index for Atopic Dermatitis; however, consensus on a preferred instrument for measuring this domain could not be reached. In summary, POEM is recommended as the HOME core outcome instrument for measuring AE symptoms.


JAMA Dermatology | 2015

Association Between Malignancy and Topical Use of Pimecrolimus.

David J. Margolis; Katrina Abuabara; Ole Hoffstad; Joy Wan; Denise Raimondo; Warren B. Bilker

IMPORTANCE A black box warning describes a potential risk of malignancy associated with topical use of pimecrolimus to treat atopic dermatitis due to its similarity to oral calcineurin inhibitors used in solid-organ transplantation and spontaneous reporting of malignancies, including lymphomas and cutaneous malignancies. OBJECTIVE To evaluate the risk of malignancy in a postmarketing study of children exposed to pimecrolimus. DESIGN, SETTING, AND PARTICIPANTS A longitudinal cohort study among a nationwide ongoing long-term cohort of children enrolled in the Pediatric Eczema Elective Registry (PEER) who had a history of atopic dermatitis and pimecrolimus use with data available up through May 2014. MAIN OUTCOMES AND MEASURES Reports of malignancy among those in the PEER compared with expected rates from the Surveillance, Epidemiology, and End Results (SEER) program. RESULTS Overall, 7457 children were enrolled in the PEER, for a total of 26,792 person-years. Children used a mean (SD) of 793 (1356) g of pimecrolimus when enrolled in the study. As of May 2014, five malignancies had been reported. These include 2 leukemias, 1 osteosarcoma, and 2 lymphomas. No skin cancers were reported. The standardized incidence ratio for all malignancies (primary outcome) based on the age-standardized SEER population was 1.2 (95% CI, 0.5-2.8). As secondary analyses, the standardized incidence ratios (based on 2 cases for each) were 2.9 (95% CI, 0.7-11.7) for lymphoma and 2.0 (95% CI, 0.5-8.2) for leukemia. None of these findings were statistically significant. CONCLUSIONS AND RELEVANCE Based on more than 25,000 person-years of follow-up, it seems unlikely that topical pimecrolimus as it was used in the PEER cohort to treat atopic dermatitis is associated with an increased risk of malignancy.


American Journal of Public Health | 2006

Barriers to Contraceptive Use in Product Labeling and Practice Guidelines

Daniel Grossman; Charlotte Ellertson; Katrina Abuabara; Kelly Blanchard; Francisco T. Rivas

Many contraceptives are encumbered with potentially unnecessary restrictions on their use. Indeed, fear of side effects, fostered by alarmist labeling, is a leading reason that women do not use contraceptives. In the United States, hormonal methods currently require a prescription, although research suggests that women can adequately screen themselves for contraindications, manage side effects, and determine an appropriate initiation date, leaving little need for routine direct physician involvement. Sizing, spermicidal use, and length-of-wear limits burden users of cervical barriers and may be unnecessary. Despite recent changes in the labeling of intrauterine devices, clinicians commonly restrict use of this method and in some countries may limit the types of providers authorized to insert them. Although in some cases additional research is necessary, existing data indicate that evidence-based demedicalization of contraceptive provision could reduce costs and improve access.


International Journal of Gynecology & Obstetrics | 2007

Abuse during pregnancy in Mexico City

Claudia Díaz-Olavarrieta; Francisco Paz; Katrina Abuabara; H. B. Martínez Ayala; K. Kolstad; Tia Palermo

Objective: Measure the prevalence of physical and sexual abuse during pregnancy, determine the nature and severity of abuse, and assess correlates with abuse. Method: A total of 1314 women seeking prenatal care between July 2000 and January 2003 were approached at three public hospitals in Mexico City. An original composite case record form was created to measure physical and sexual abuse before and during pregnancy. Result: Forty‐one percent of respondents had a history of physical or sexual abuse, with current abuse reported by 11.1%, and abuse during pregnancy by 7.6%. Among abused women, 71% reported an increase in the severity of abuse since becoming pregnant. Logistic regression revealed physically fighting with a partner and a history of abuse best predict violence during pregnancy. Conclusion: The severity of abuse among abused women appears to increase during pregnancy. Prenatal care visits in Mexico are an important opportunity for violence screening and intervention.


Journal of Investigative Dermatology | 2012

The Role of Systematic Reviews and Meta-analysis in Dermatology

Katrina Abuabara; Esther E. Freeman; Robert P. Dellavalle

Systematic reviews of the medical literature are key tools in comprehensively summarizing data and helping clinicians and policy makers to make informed, evidence-based decisions regarding patient care and health policy.

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David J. Margolis

University of Pennsylvania

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Joel M. Gelfand

University of Pennsylvania

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Andrea B. Troxel

University of Pennsylvania

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Joy Wan

University of Pennsylvania

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Ole Hoffstad

University of Pennsylvania

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Daniel B. Shin

University of Pennsylvania

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Carsten Flohr

Guy's and St Thomas' NHS Foundation Trust

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