Arnon Dov Cohen

BACKGROUND: Previous reports demonstrated an association between psoriasis and other diseases including heart failure and diabetes mellitus.

OBJECTIVES: Our aim was to describe the association between psoriasis, diabetes mellitus, and atherosclerosis in Israel.

METHODS: A cross-sectional study was performed utilizing the database of Maccabi Healthcare Services (MHS), a large health provider organization in Israel. Case patients were defined as subjects who were diagnosed with psoriasis. ...

IMPORTANCE: The efficacy of treatment for psoriasis must be balanced against potential adverse events.

OBJECTIVE: To determine the effect of treatment on the risk of serious infections in patients with psoriasis.

DESIGN, SETTING, AND PARTICIPANTS: A multicenter, longitudinal, disease-based registry (Psoriasis Longitudinal Assessment and Registry [PSOLAR]) at dermatology centers. Participants were adult patients with psoriasis who were receiving or were eligible to receive conventional ...

BACKGROUND: Previous reports have shown an association between inflammatory diseases such as systemic lupus erythematosus or rheumatoid arthritis and the metabolic syndrome. Recent data demonstrate that psoriasis is an inflammatory disease, suggesting that psoriasis may be one of the components of the metabolic syndrome.

OBJECTIVE: To assess the association between psoriasis and the metabolic syndrome.

METHODS: A cross-sectional study was performed utilizing the database of the Clalit ...

BACKGROUND: Individuals with schizophrenia have an increased risk of severe COVID-19 outcomes, nonetheless, no previous study has provided a year-long account of this risk, or assessed postvaccination trends in this population. This study assessed temporal trends in COVID-19 hospitalisation and mortality among people with schizophrenia during the first year of the pandemic, the predictors for COVID-19 vaccination, postvaccination infection, admission to hospital, and mortality.

METHODS: ...

BACKGROUND: Previous reports have shown an association between psoriasis and the metabolic syndrome, but there are only a few studies on the association between psoriasis and diabetes.

OBJECTIVES: To study the association between psoriasis and diabetes.

METHODS: A cross-sectional study was performed utilizing the database of Clalit Health Services (CHS). Patients who were diagnosed with psoriasis were compared with CHS enrolees without psoriasis regarding the prevalence of diabetes. ...

The aim of this study was to study weight and body mass index (BMI) before, at, and after diagnosis of type 1 diabetes (T1D) and to identify factors associated with weight gain. Studied retrospectively were 209 children <18 years with T1D followed for 6 years. Data collected included clinical and laboratory data before diagnosis, at diagnosis, and during 6 years of follow-up. Anthropometric parameters of patients were compared along follow-up and with those of their parents and siblings. ...

BACKGROUND: The prevalence of hypothyroidism in SLE patients varies considerably and early reports were mainly based on small cohorts.

OBJECTIVES: To investigate the association between SLE and hypothyroidism.

METHODS: Patients with SLE were compared with age and sex-matched controls regarding the proportion of hypothyroidism in a case-control study. Chi-square and t-tests were used for univariate analysis and a logistic regression model was used for multivariate analysis. The study was ...

IMPORTANCE: The risk for herpes zoster (HZ) in patients with psoriasis treated with biologic medications or other systemic treatments has been given little attention to date.

OBJECTIVE: To describe the risk for HZ in patients with psoriasis and its relation to treatment.

DESIGN, SETTING, AND PARTICIPANTS: A cohort study was performed using the administrative database of Clalit Health Services, the largest public health care provider organization in Israel, in the setting of general ...

BACKGROUND: Rheumatoid arthritis (RA) is a chronic inflammatory disease associated with systemic comorbidities. Recent data suggests that patients with RA have increased prevalence of the bipolar disorder. The current study investigates the association between RA and bipolar disorder.

METHODS: A case-control study was conducted as Patients with RA were compared with age- and gender-matched controls regarding the prevalence of bipolar disorder. Pearson χ(2) test was used for univariate ...

BACKGROUND: Despite the frequently encountered association between thyroid disease and systemic lupus erythematosus (SLE) is well known, it is of surprise that only several reports compromised of small population size support this observation.

OBJECTIVES: To investigate the association of comorbid SLE and hyperthyroidism.

METHODS: Using the database of the largest health maintenance organization (HMO) in Israel, the Clalit Health Services, we searched for the co-existence of SLE and ...

BACKGROUND: Numerous reports have demonstrated the epidemiological, pathogenic, and genetic association between psoriasis and Crohn's disease. Nevertheless, the association between psoriasis and ulcerative colitis was rarely described.

OBJECTIVE: This study aims to investigate the association between psoriasis and inflammatory bowel disease. Study design Case-control study.

SETTING: The study was performed utilizing the large medical dataset of Clalit Health Services.

METHODS: Psoriasis ...