Publications by authors named "Avivit Golan Cohen"

Aims: To assess the impact of Glucose-6-phosphate dehydrogenase (G6PD) deficiency, an enzymatic deficiency prevalent in individuals of African or Asian descent, on Hemoglobin A1c (HbA1c) levels, diabetes medication purchases, and the cumulative incidence of diabetes related complications.

Methods: A large cohort study was conducted within a national health organization, comparing 3,913 G6PD-deficient patients to a matched control group without G6PD deficiency over two decades. The main measures and outcomes were the HbA1c levels, patterns of diabetes medication purchases, and the incidence of severe diabetes-related complications.

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Pediatric pain significantly affects children's lives, leading to school absenteeism, impaired social interactions, and psychological distress. The perception of sensory signals as pain is influenced by the brain's noradrenergic system, and recent evidence suggests that chronic pain may impact cognitive functioning and emotional regulation. Attention-Deficit/Hyperactivity Disorder (ADHD) is associated with alterations in the dopaminergic/noradrenergic systems, which could affect pain perception.

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  • Selective Immunoglobulin A Deficiency (SIgAD) is a common immunodeficiency that leads to a higher risk of mucosal infections.
  • This study evaluated the prevalence of Attention Deficit Hyperactivity Disorder (ADHD) in patients with SIgAD compared to a matched control group without the deficiency.
  • Results showed that ADHD prevalence was significantly higher in the SIgAD group (16.2%) versus controls (12.9%), along with increased use of methylphenidate and more frequent respiratory and intestinal infections.
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  • This study investigated the effectiveness of serum folic acid testing in children and teens in a developed country without mandatory food fortification, analyzing data from over 20,000 patients aged 0-18 between 2008 and 2018.
  • Out of the patients tested, only 4.3% had folic acid deficiency, and the majority did not show signs of anemia, suggesting low rates of severe deficiency in the population studied.
  • The research highlighted that certain factors, such as male gender, older age, higher BMI, and specific medication usage (like antipsychotics or drugs for ADHD), increased the risk of folic acid deficiency, but routine testing may not be necessary for healthy children in developed countries.
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  • - The study aimed to explore the link between helminth infections and celiac disease (CeD) by comparing demographic and clinical data between individuals with CeD and a control group.
  • - The research used electronic health records from Leumit Health Care Services, finding no significant differences in age, gender, socioeconomic status, or ethnicity between the groups, although intestinal helminthiases were more common in CeD cases, particularly pinworm infections.
  • - The results challenge existing beliefs about the hygiene hypothesis by suggesting a possible unexpected connection between CeD and helminth infections, prompting further investigation into this relationship.
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  • Rheumatoid arthritis (RA) patients are classified into late-onset (≥60 years) and early-onset (<60 years), but current treatment guidelines lack specific recommendations for late-onset patients regarding initial biologic therapy.
  • A study analyzed medical records from 2000 to 2017, including 3814 RA patients, to compare first biologic treatment survival times between late and early-onset groups.
  • Results showed that early-onset patients used biologics more frequently (16.9%) compared to late-onset patients (7.8%), but overall drug survival times for the first biologic treatment were similar across both groups, with only abatacept and golimumab showing longer survival times in early-onset patients
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  • The study explores the link between acute urticaria (AU) and cardiovascular conditions, aiming to identify common comorbidities among AU patients compared to a control group.
  • Results showed higher levels of various health indicators (like blood pressure and BMI) in AU patients and significant associations with several cardiovascular issues, including heart diseases and arrhythmias.
  • The findings highlight the need for medical professionals to be aware of cardiovascular risks in AU patients, suggesting that these conditions might share underlying mechanisms, warranting further investigation.
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Background: Telemedicine has expanded rapidly in recent years, and many encounters that were conducted in person now take place remotely. This study aimed to assess primary care physicians' (PCPs) attitudes towards the different modalities of patient care.

Methods: This is a cross-sectional nationwide descriptive study conducted in Israel.

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Background: In the last three decades, much effort has been invested in measuring and improving the quality of diabetes care. We assessed the association between adherence to diabetes quality indicators and all-cause mortality in the primary care setting.

Methods: A nationwide, population-based, historical cohort study of all people aged 45-80 with pharmacologically-treated diabetes in 2005 (n = 222,235).

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Background: Studies have demonstrated that 50% to 80% of patients do not receive an International Classification of Diseases (ICD) code assigned to their medical encounter or condition. For these patients, their clinical information is mostly recorded as unstructured free-text narrative data in the medical record without standardized coding or extraction of structured data elements. Leumit Health Services (LHS) in collaboration with the Israeli Ministry of Health (MoH) conducted this study using electronic medical records (EMRs) to systematically extract meaningful clinical information about people with diabetes from the unstructured free-text notes.

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Objective: We examined the association between the number, magnitude, and frequency of febrile episodes during the 0 to 4 years of life and subsequent diagnosis of ADHD.

Methods: This population-based case-control study in an Israeli HMO, Leumit Health Services (LHS), uses a database for all LHS members aged 5 to 18 years between 1/1/2002 and 1/30/2022. The number and magnitude of measured fever episodes during the 0 to 4 years were recorded in individuals with ADHD ( = 18,558) and individually matched non-ADHD controls in a 1:2 ratio ( = 37,116).

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Objectives: The objective of this study is to report the prevalence, clinical characteristics and healthcare utilisation of patients with type 2 diabetes (T2DM) and previously undiagnosed cognitive impairment who were identified as having a low Montreal Cognitive Assessment (MoCA) score.

Design: A population-based cohort study comparing clinical characteristics, medications, outpatient and inpatient care of patients with a MoCA score <19 to MoCA >26 using descriptive statistics, linear regression and multivariate logistic regression.

Setting: Electronic medical records of a large health maintenance organisation in Israel.

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Food-induced anaphylaxis (FIA) is a serious and potentially life-threatening allergic reaction triggered by food allergens. This case-control study aimed to investigate comorbidities and laboratory factors associated with FIA in the pediatric population of Israel. Retrospective data from the electronic health records of Leumit Health Care Services were used to identify 711 pediatric patients with FIA and 2560 subjects with food allergy and without anaphylaxis matched for age, gender, and ethnicity.

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Objective: There is growing evidence of involvement of inflammatory mechanisms in ADHD. Previous studies found significantly higher rates of ADHD among children with FMF. The present study examined the rate of exposure to FMF in children with a later (within a 5-year period) diagnosis of ADHD compared to non-ADHD children.

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Article Synopsis
  • * An analysis of 7,473 G6PD-deficient patients compared to 29,892 matched individuals showed these patients have a higher likelihood of being diagnosed with ADHD and seeking help from neurologists and psychiatrists.
  • * The study found significantly increased usage of stimulant medications, with G6PD-deficient individuals having a 17% higher chance of using methylphenidate and a 16% increased risk for amphetamines.
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Introduction: Glucose-6-phosphate dehydrogenase (G6PD) deficiency is an X-linked enzymatic disorder that is particularly prevalent in Africa, Asia, and the Middle East. This study aimed to assess the long-term health risks associated with G6PD deficiency.

Methods: A retrospective cohort study was conducted using data from a national healthcare provider in Israel (Leumit Health Services).

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Introduction: Studies show that physicians' attitudes are a major influential factor in the degree of implementation of telemedicine and that most of them identify much more opportunities in this type of visit than risks. These findings do not explain the observed decrease in the use of telemedicine in primary care with the decline of the COVID-19 pandemic. The aim of our study was to understand the gap between the attitudes that primary care physicians declare towards telemedicine and the extent to which they use it in practice.

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  • The study investigates the prevalence of neurologic diseases in individuals with selective immunoglobulin A deficiency (sIgAD) within the Israeli population.
  • A population-based case-control study was conducted, comparing 796 subjects with sIgAD to 3980 matched controls based on age, gender, ethnicity, and socioeconomic status.
  • Findings revealed a higher prevalence of autism spectrum disorder and tic disorders in the sIgAD group, while migraine was less common; additionally, there were more cases of epilepsy in the sIgAD group, prompting further research into the role of IgA in central nervous system diseases.
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Background: Previous studies have shown that more temporally regular primary care visits are associated with improved patient outcomes.

Objective: To examine the association of temporal regularity (TR) of primary care with hospitalizations and mortality in patients with chronic illnesses. Also, to identify threshold values for TR for predicting outcomes.

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Background And Aims: Although obesity has been confirmed as a risk factor for SARS-CoV-2 infection and its severity, the role of post-bariatric surgery (BS) variables and the infection is unclear. We, therefore, aimed to study comprehensively the relationship between the extent of weight reduction after surgery and other demographic, clinical, and laboratory variables with the rates of SARS-CoV-2 infection.

Methods: A population-based cross-sectional study was performed, utilizing advanced tracking methodologies on the computerized database of a nation-wide health maintenance organization (HMO).

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In this cohort study conducted in a national healthcare organization in Israel, we found that individuals with glucose-6-phosphate dehydrogenase deficiency had an increased risk of coronavirus disease 2019 (COVID-19) infection and severity, with higher rates of hospitalization and diagnosed long COVID.

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Aims: To examine whether biologic disease-modifying anti-rheumatic drugs (bDMARDs) are associated with increased risk of malignancy among Israeli patients with rheumatoid arthritis (RA).

Methods: We identified RA patients meeting specified inclusion and exclusion criteria from the Leumit healthcare services database between the years 2000 and 2017. Data were collected regarding bDMARD and conventional DMARD consumption, types of malignancies, and their temporal relation to RA diagnosis.

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Background: Patients with chronic diseases should meet with their primary care doctor regularly to facilitate proactive care. Little is known about what factors are associated with more regular follow-up.

Methods: We studied 70,095 patients age 40 + with one of three chronic conditions (diabetes mellitus, heart failure, chronic obstructive pulmonary disease), cared for by Leumit Health Services, an Israeli health maintenance organization.

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