International journal of psychiatry in clinical practice, Jan 20, 2016
Research in eating disorders (EDs) suggests that outcome variables other than that of the ED per ... more Research in eating disorders (EDs) suggests that outcome variables other than that of the ED per se, such as the presence of comorbid disorders and overall functioning at follow-up, may influence the ED condition at that time. We sought to assess the factors potentially predicting these different outcome variables. Eighty-eight female adolescent in-patients with an ED were assessed on admission, discharge, and around one-year post-discharge using clinical interviews and self-rating questionnaires assessing ED and other relevant symptoms. The mean body mass index (BMI) of patients with anorexia nervosa increased from admission to discharge and was maintained at follow-up. Twenty-eight patients were remitted at follow-up, whereas 48 and 12 patients had intermediate and poor ED-related outcome, respectively. Follow-up BMI was correlated with baseline BMI. Good ED-related outcome at follow-up according to accepted criteria was associated with more lifetime suicide attempts and more seve...
Journal of neural transmission (Vienna, Austria : 1996), Nov 20, 2016
Pharmacogenetic approach to antidepressant (AD) response is a promising avenue toward individuali... more Pharmacogenetic approach to antidepressant (AD) response is a promising avenue toward individualizing AD treatment. This is particularly relevant in pediatric populations because of concerns about the suicide risk of serotonin selective reuptake inhibitors (SSRIs), resulting in a black-box warning. However, to date, no specific gene or polymorphism has been consistently implicated as a marker of AD side effect (SE) in the pediatric population. The aim of this study was to examine the association between polymorphisms in genes related to the serotonergic system and citalopram SE's in children and adolescents with major depressive disorder (MDD)/dysthymia and/or anxiety disorders. Outpatients (N = 87, 44 % males), aged 7-18 years with a DSM-IV-TR diagnosis of MDD/dysthymia and/or an anxiety disorder were treated in an 8-week open trial with 20-40 mg/day of citalopram. SE's were rated using a questionnaire devised specifically for this study. Association analysis between known/...
Journal of neural transmission (Vienna, Austria : 1996), Jan 12, 2016
In this study, we report the developmental, physical and psychiatric manifestations of 22q11.2 de... more In this study, we report the developmental, physical and psychiatric manifestations of 22q11.2 deletion syndrome (22q11.2DS) in a large Israeli cohort, and search for a possible association between preterm birth and the risk for psychotic disorders. The study population consisted of 128 individuals with 22q11.2DS (77 male, 51 female), aged 1-55 years (mean ± SD 12.9 ± 11.0). All subjects underwent a comprehensive medical evaluation. All subjects older than 5 years (n = 104) were also evaluated psychiatrically. Overall, we found rates of physical manifestations similar to those previously reported in the literature. Psychiatric disorders were very common among our study population, with psychotic disorders occurring in 16.3 % of the psychiatrically evaluated population. We found an association between the presence of psychotic disorders and preterm birth. Our results replicate and extend the findings of a previous work and suggest that the evolution of psychosis in 22q11.2DS is a neu...
International journal of psychiatry in clinical practice, Jan 9, 2016
To evaluate the correlation between depression, satisfaction with life, and primary healthcare se... more To evaluate the correlation between depression, satisfaction with life, and primary healthcare services consumption. A random sample of primary healthcare clinic patients agreed to complete self-report questionnaires on demographics and physical activity, the Geriatric Depression Scale (GDS), Satisfaction with Life Scale and the Visual Analog Scale for Happiness. Treating physicians completed the Cumulative Illness Rating Scale (CIRS) for each patient. The relationships among psychometric, medical, the number of visits to health maintenance organization (HMO)-physicians during the previous year was assessed. Positive correlation was found between visits to HMO-physicians and depression severity, as assessed by GDS (p = .049), and between visits/year and illness severity, as measured by CIRS (p < .001). Correlation was also found between depression and number of chronic medications used (p = .005). Physical activity correlated inversely with depression severity (p = .014). Gender ...
. Background: Little is known about the role of insight and satisfaction with life in adolescent ... more . Background: Little is known about the role of insight and satisfaction with life in adolescent suicidal behavior. Aims: The objective of this study was to examine the relationship between suicide risk, insight, and satisfaction with life among adolescents with mental disorders. Method: A total of 30 adolescents were evaluated using self-report measures of insight, satisfaction with life, and suicide risk. Regression analysis was used to assess the contribution of each factor to suicide risk. Results: Positive correlations were found between suicide risk and insight dimensions. Satisfaction with life correlated negatively with suicide risk and insight dimensions. Insight explained 27.3% of suicide risk (p = .003). Both insight and satisfaction with life explained 39.0% of suicide risk (p = .031). Conclusion: Among adolescents with mental disorders, insight is a risk factor, whereas satisfaction with life is a protective factor for suicidality. Insight affects suicide risk of adolescents with mental disorders via reduction of satisfaction with life.
This study aimed to examine the rates of cigarette smoking, alcohol and cannabis use among patien... more This study aimed to examine the rates of cigarette smoking, alcohol and cannabis use among patients with pervasive developmental disorder (PDD), in order to determine whether they are relatively protected from developing substance-related addictive behaviors. This case-control study included 85 patients diagnosed with PDD and 85 age- and gender-matched nonpsychotic psychiatric patients without PDD. Data were collected from the patients&amp;amp;#39; electronic medical records and included demographic and psychiatric parameters, as well as data on smoking, alcohol, and cannabis use. A lower rate of cigarette smoking was found among patients diagnosed with PDD in comparison to those without PDD [20.0% vs. 52.9% respectively, p &amp;amp;lt; .001). The likelihood of smoking in PDD was found to be 3.57-fold lower than in psychiatric controls [OR = 3.57 (95% CI 1.69-7.14), p = .001]. A multivariate analysis showed that after adjusting for age, comorbid diagnoses and use of an antipsychotic medications, this effect was even more robust with the likelihood of smoking in PDD decreasing even more substantially compared to controls [OR = 8.33 (95% CI 2.86-25), p &amp;amp;lt; .001]. A similar finding was noted when comparing the prevalence of alcohol and cannabis use between the two groups [OR 6.67 (95%CI 1.30-33.33), p = .02 and 5.55 (95%CI 1.30-25), p = .01, respectively]. PDD is associated with 5-8-fold lower adjusted risk of smoking, alcohol and cannabis use compared to other non-psychotic psychiatric patients. Further research should elucidate the neurobiological and psychosocial mechanisms underlying the apparent addiction protective properties of PDD.
Journal of molecular neuroscience : MN, Jan 14, 2015
Olanzapine-induced weight gain is associated with atherosclerosis, hypertension, dyslipidemia, an... more Olanzapine-induced weight gain is associated with atherosclerosis, hypertension, dyslipidemia, and diabetes. We synthesized a novel antipsychotic drug (PGW5) possessing an olanzapine moiety linked to sarcosine, a glycine transporter 1 inhibitor. In this study, we compared the metabolic effects of PGW5 and olanzapine in a female rat model of weight gain. Female rats were treated daily with oral olanzapine (4 mg/kg), PGW5 (25 mg/kg), or vehicle for 16 days. Behavioral tests were conducted on days 12-14. Biochemical analyses were performed at the end of the treatment. A significant increase in body weight was observed in the olanzapine-treated group, while the PGW5 group did not differ from the controls. The open field test showed hypo-locomotion in the olanzapine-treated animals as compared to PGW5 and control groups. A significant increase in hypothalamic protein expression of the neuropeptide Y5 receptor and a decrease in pro-opiomelanocortin messenger ribonucleic acid (mRNA) levels...
The Israel journal of psychiatry and related sciences, 2015
This study examined the association between dental conditions in hospitalized patients with ICD-1... more This study examined the association between dental conditions in hospitalized patients with ICD-10 schizophrenia and type of antipsychotic treatment. Based on the literature suggesting that atypical antipsychotics are thought to be more tolerable than typical antipsychotics, we hypothesized that hospitalized patients with schizophrenia treated with atypicals would have better dental health than those treated with typicals alone or with a combination of both (combined group). A representative sample of 348 patients (69% males), aged 51.4 (SD=14.5, range 31-58) years, was assessed on the standardized criteria of the Decayed, Missing and Filled Teeth (DMFT) index and component scores. Data on medication were extracted from patients' electronic medical records. Patients treated with typicals had significantly higher DMFT index scores than those who received atypicals (23.5±9.9 vs. 19.0±10.5; p < 0.05), and higher Missing (20.2±11.6 vs. 13.5±11.2; p < 0.01) and lower Filled (1....
Psychotropic drug treatment has been associated with increased risk for falls and hip fractures i... more Psychotropic drug treatment has been associated with increased risk for falls and hip fractures in elderly patients. The authors examined the association between drug treatment and hip fractures resulting from falls in elderly hospitalized patients, focusing on the medications&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39; anticholinergic properties. This retrospective case-control study was conducted in an acute geriatric ward in a general medical center. Medical records, including demographic, clinical, biochemical, and pharmacological variables, of elderly patients with hip fractures from falls (N = 185), admitted during a 2-year period, were reviewed and compared with a control group (N = 187) of patients matched for age and gender and without hip fractures. The usage rates of antipsychotics, antidepressants, mood stabilizers, and various nonpsychiatric medications were similar in the two groups, except for hypnotics-anxiolytics (higher rates in hip-fracture patients). The Cumulative Illness Rating Scale for Geriatrics (CIRS-G) and diastolic blood pressure constituted very modest predictors of falls (R(2) = .038, p = .004). There were no significant differences in the anticholinergic burden values, clinical dementia ratings, and comorbidity burden between the two groups. The rate of psychotropic drug use in general and their anticholinergic burden are similar in acutely admitted elderly patients with or without hip fractures. However, higher usage rate of anxiolytics found in the patients with hip fractures may indicate that this is a risk factor for hip fractures related to falls in elderly patients living in the community.
Schizophrenia (SCZ) is a chronic neurodevelopmental psychotic disorder. The immune system and neu... more Schizophrenia (SCZ) is a chronic neurodevelopmental psychotic disorder. The immune system and neuroinflammation seem to play a central role in the pathophysiology of SCZ. Clozapine is an effective atypical antipsychotic used for treatment-resistant SCZ. Life-threatening side effects, such as myocarditis, limit its use. We investigated the immunomodulatory effects of clozapine in an astroglial model of neuroinflammation. We thus assessed the effect of clozapine on the production of inflammatory mediators in human-derived astroglial (A172) cells, stimulated with a cytokine mix (TNFα, IL-1β, IFNγ). RT-PCR and ELISA analyses demonstrated that clozapine suppressed gene expression and production of TNFα, IL-1β and IL-8 and increased COX2 mRNA 24 h after stimulation. Clozapine inhibited Akt phosphorylation induced by the cytokine mix at 10 min and 40 min, as assessed by Western blot analysis with anti-pT308Akt antibody. Pretreatment with the Akt inhibitor MK-2206 increased COX2 gene expres...
This international guideline proposes improving clozapine package inserts worldwide by using ance... more This international guideline proposes improving clozapine package inserts worldwide by using ancestry-based dosing and titration. Adverse drug reaction (ADR) databases suggest that clozapine is the third most toxic drug in the United States (US), and it produces four times higher worldwide pneumonia mortality than that by agranulocytosis or myocarditis. For trough steady-state clozapine serum concentrations, the therapeutic reference range is narrow, from 350 to 600 ng/mL with the potential for toxicity and ADRs as concentrations increase. Clozapine is mainly metabolized by CYP1A2 (female non-smokers, the lowest dose; male smokers, the highest dose). Poor metabolizer status through phenotypic conversion is associated with co-prescription of inhibitors (including oral contraceptives and valproate), obesity, or inflammation with C-reactive protein (CRP) elevations. The Asian population (Pakistan to Japan) or the Americas’ original inhabitants have lower CYP1A2 activity and require low...
Background: ADHD limits the ability to comply with Covid-19 prevention recommendations. We hypoth... more Background: ADHD limits the ability to comply with Covid-19 prevention recommendations. We hypothesized that ADHD constitutes a risk factor for Covid-19 infection and that pharmacotherapy may lower that risk. Methods: Study population included all subjects ( N = 14,022) registered with Leumit Health Services between February 1st and April 30, 2020, who underwent at least one Covid-19 test. Data were collected from the electronic health records. Purchasing consecutively at least three ADHD-medication-prescriptions during past year was considered drug-treatment. Results: A total of 1,416 (10.1%) subjects (aged 2 months–103 years) were Covid-19-positive.They were significantly younger, and had higher rates of ADHD (adjOR 1.58 (95% CI 1.27–1.96, p < .001) than Covid-19-negative subjects. The risk for Covid-19-Positive was higher in untreated-ADHD subjects compared to non-ADHD subjects [crudeOR 1.61 (95% CI 1.36–1.89, p < .001)], while no higher risk was detected in treated ones [c...
International journal of psychiatry in clinical practice, Jan 20, 2016
Research in eating disorders (EDs) suggests that outcome variables other than that of the ED per ... more Research in eating disorders (EDs) suggests that outcome variables other than that of the ED per se, such as the presence of comorbid disorders and overall functioning at follow-up, may influence the ED condition at that time. We sought to assess the factors potentially predicting these different outcome variables. Eighty-eight female adolescent in-patients with an ED were assessed on admission, discharge, and around one-year post-discharge using clinical interviews and self-rating questionnaires assessing ED and other relevant symptoms. The mean body mass index (BMI) of patients with anorexia nervosa increased from admission to discharge and was maintained at follow-up. Twenty-eight patients were remitted at follow-up, whereas 48 and 12 patients had intermediate and poor ED-related outcome, respectively. Follow-up BMI was correlated with baseline BMI. Good ED-related outcome at follow-up according to accepted criteria was associated with more lifetime suicide attempts and more seve...
Journal of neural transmission (Vienna, Austria : 1996), Nov 20, 2016
Pharmacogenetic approach to antidepressant (AD) response is a promising avenue toward individuali... more Pharmacogenetic approach to antidepressant (AD) response is a promising avenue toward individualizing AD treatment. This is particularly relevant in pediatric populations because of concerns about the suicide risk of serotonin selective reuptake inhibitors (SSRIs), resulting in a black-box warning. However, to date, no specific gene or polymorphism has been consistently implicated as a marker of AD side effect (SE) in the pediatric population. The aim of this study was to examine the association between polymorphisms in genes related to the serotonergic system and citalopram SE's in children and adolescents with major depressive disorder (MDD)/dysthymia and/or anxiety disorders. Outpatients (N = 87, 44 % males), aged 7-18 years with a DSM-IV-TR diagnosis of MDD/dysthymia and/or an anxiety disorder were treated in an 8-week open trial with 20-40 mg/day of citalopram. SE's were rated using a questionnaire devised specifically for this study. Association analysis between known/...
Journal of neural transmission (Vienna, Austria : 1996), Jan 12, 2016
In this study, we report the developmental, physical and psychiatric manifestations of 22q11.2 de... more In this study, we report the developmental, physical and psychiatric manifestations of 22q11.2 deletion syndrome (22q11.2DS) in a large Israeli cohort, and search for a possible association between preterm birth and the risk for psychotic disorders. The study population consisted of 128 individuals with 22q11.2DS (77 male, 51 female), aged 1-55 years (mean ± SD 12.9 ± 11.0). All subjects underwent a comprehensive medical evaluation. All subjects older than 5 years (n = 104) were also evaluated psychiatrically. Overall, we found rates of physical manifestations similar to those previously reported in the literature. Psychiatric disorders were very common among our study population, with psychotic disorders occurring in 16.3 % of the psychiatrically evaluated population. We found an association between the presence of psychotic disorders and preterm birth. Our results replicate and extend the findings of a previous work and suggest that the evolution of psychosis in 22q11.2DS is a neu...
International journal of psychiatry in clinical practice, Jan 9, 2016
To evaluate the correlation between depression, satisfaction with life, and primary healthcare se... more To evaluate the correlation between depression, satisfaction with life, and primary healthcare services consumption. A random sample of primary healthcare clinic patients agreed to complete self-report questionnaires on demographics and physical activity, the Geriatric Depression Scale (GDS), Satisfaction with Life Scale and the Visual Analog Scale for Happiness. Treating physicians completed the Cumulative Illness Rating Scale (CIRS) for each patient. The relationships among psychometric, medical, the number of visits to health maintenance organization (HMO)-physicians during the previous year was assessed. Positive correlation was found between visits to HMO-physicians and depression severity, as assessed by GDS (p = .049), and between visits/year and illness severity, as measured by CIRS (p < .001). Correlation was also found between depression and number of chronic medications used (p = .005). Physical activity correlated inversely with depression severity (p = .014). Gender ...
. Background: Little is known about the role of insight and satisfaction with life in adolescent ... more . Background: Little is known about the role of insight and satisfaction with life in adolescent suicidal behavior. Aims: The objective of this study was to examine the relationship between suicide risk, insight, and satisfaction with life among adolescents with mental disorders. Method: A total of 30 adolescents were evaluated using self-report measures of insight, satisfaction with life, and suicide risk. Regression analysis was used to assess the contribution of each factor to suicide risk. Results: Positive correlations were found between suicide risk and insight dimensions. Satisfaction with life correlated negatively with suicide risk and insight dimensions. Insight explained 27.3% of suicide risk (p = .003). Both insight and satisfaction with life explained 39.0% of suicide risk (p = .031). Conclusion: Among adolescents with mental disorders, insight is a risk factor, whereas satisfaction with life is a protective factor for suicidality. Insight affects suicide risk of adolescents with mental disorders via reduction of satisfaction with life.
This study aimed to examine the rates of cigarette smoking, alcohol and cannabis use among patien... more This study aimed to examine the rates of cigarette smoking, alcohol and cannabis use among patients with pervasive developmental disorder (PDD), in order to determine whether they are relatively protected from developing substance-related addictive behaviors. This case-control study included 85 patients diagnosed with PDD and 85 age- and gender-matched nonpsychotic psychiatric patients without PDD. Data were collected from the patients&amp;amp;#39; electronic medical records and included demographic and psychiatric parameters, as well as data on smoking, alcohol, and cannabis use. A lower rate of cigarette smoking was found among patients diagnosed with PDD in comparison to those without PDD [20.0% vs. 52.9% respectively, p &amp;amp;lt; .001). The likelihood of smoking in PDD was found to be 3.57-fold lower than in psychiatric controls [OR = 3.57 (95% CI 1.69-7.14), p = .001]. A multivariate analysis showed that after adjusting for age, comorbid diagnoses and use of an antipsychotic medications, this effect was even more robust with the likelihood of smoking in PDD decreasing even more substantially compared to controls [OR = 8.33 (95% CI 2.86-25), p &amp;amp;lt; .001]. A similar finding was noted when comparing the prevalence of alcohol and cannabis use between the two groups [OR 6.67 (95%CI 1.30-33.33), p = .02 and 5.55 (95%CI 1.30-25), p = .01, respectively]. PDD is associated with 5-8-fold lower adjusted risk of smoking, alcohol and cannabis use compared to other non-psychotic psychiatric patients. Further research should elucidate the neurobiological and psychosocial mechanisms underlying the apparent addiction protective properties of PDD.
Journal of molecular neuroscience : MN, Jan 14, 2015
Olanzapine-induced weight gain is associated with atherosclerosis, hypertension, dyslipidemia, an... more Olanzapine-induced weight gain is associated with atherosclerosis, hypertension, dyslipidemia, and diabetes. We synthesized a novel antipsychotic drug (PGW5) possessing an olanzapine moiety linked to sarcosine, a glycine transporter 1 inhibitor. In this study, we compared the metabolic effects of PGW5 and olanzapine in a female rat model of weight gain. Female rats were treated daily with oral olanzapine (4 mg/kg), PGW5 (25 mg/kg), or vehicle for 16 days. Behavioral tests were conducted on days 12-14. Biochemical analyses were performed at the end of the treatment. A significant increase in body weight was observed in the olanzapine-treated group, while the PGW5 group did not differ from the controls. The open field test showed hypo-locomotion in the olanzapine-treated animals as compared to PGW5 and control groups. A significant increase in hypothalamic protein expression of the neuropeptide Y5 receptor and a decrease in pro-opiomelanocortin messenger ribonucleic acid (mRNA) levels...
The Israel journal of psychiatry and related sciences, 2015
This study examined the association between dental conditions in hospitalized patients with ICD-1... more This study examined the association between dental conditions in hospitalized patients with ICD-10 schizophrenia and type of antipsychotic treatment. Based on the literature suggesting that atypical antipsychotics are thought to be more tolerable than typical antipsychotics, we hypothesized that hospitalized patients with schizophrenia treated with atypicals would have better dental health than those treated with typicals alone or with a combination of both (combined group). A representative sample of 348 patients (69% males), aged 51.4 (SD=14.5, range 31-58) years, was assessed on the standardized criteria of the Decayed, Missing and Filled Teeth (DMFT) index and component scores. Data on medication were extracted from patients' electronic medical records. Patients treated with typicals had significantly higher DMFT index scores than those who received atypicals (23.5±9.9 vs. 19.0±10.5; p < 0.05), and higher Missing (20.2±11.6 vs. 13.5±11.2; p < 0.01) and lower Filled (1....
Psychotropic drug treatment has been associated with increased risk for falls and hip fractures i... more Psychotropic drug treatment has been associated with increased risk for falls and hip fractures in elderly patients. The authors examined the association between drug treatment and hip fractures resulting from falls in elderly hospitalized patients, focusing on the medications&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39; anticholinergic properties. This retrospective case-control study was conducted in an acute geriatric ward in a general medical center. Medical records, including demographic, clinical, biochemical, and pharmacological variables, of elderly patients with hip fractures from falls (N = 185), admitted during a 2-year period, were reviewed and compared with a control group (N = 187) of patients matched for age and gender and without hip fractures. The usage rates of antipsychotics, antidepressants, mood stabilizers, and various nonpsychiatric medications were similar in the two groups, except for hypnotics-anxiolytics (higher rates in hip-fracture patients). The Cumulative Illness Rating Scale for Geriatrics (CIRS-G) and diastolic blood pressure constituted very modest predictors of falls (R(2) = .038, p = .004). There were no significant differences in the anticholinergic burden values, clinical dementia ratings, and comorbidity burden between the two groups. The rate of psychotropic drug use in general and their anticholinergic burden are similar in acutely admitted elderly patients with or without hip fractures. However, higher usage rate of anxiolytics found in the patients with hip fractures may indicate that this is a risk factor for hip fractures related to falls in elderly patients living in the community.
Schizophrenia (SCZ) is a chronic neurodevelopmental psychotic disorder. The immune system and neu... more Schizophrenia (SCZ) is a chronic neurodevelopmental psychotic disorder. The immune system and neuroinflammation seem to play a central role in the pathophysiology of SCZ. Clozapine is an effective atypical antipsychotic used for treatment-resistant SCZ. Life-threatening side effects, such as myocarditis, limit its use. We investigated the immunomodulatory effects of clozapine in an astroglial model of neuroinflammation. We thus assessed the effect of clozapine on the production of inflammatory mediators in human-derived astroglial (A172) cells, stimulated with a cytokine mix (TNFα, IL-1β, IFNγ). RT-PCR and ELISA analyses demonstrated that clozapine suppressed gene expression and production of TNFα, IL-1β and IL-8 and increased COX2 mRNA 24 h after stimulation. Clozapine inhibited Akt phosphorylation induced by the cytokine mix at 10 min and 40 min, as assessed by Western blot analysis with anti-pT308Akt antibody. Pretreatment with the Akt inhibitor MK-2206 increased COX2 gene expres...
This international guideline proposes improving clozapine package inserts worldwide by using ance... more This international guideline proposes improving clozapine package inserts worldwide by using ancestry-based dosing and titration. Adverse drug reaction (ADR) databases suggest that clozapine is the third most toxic drug in the United States (US), and it produces four times higher worldwide pneumonia mortality than that by agranulocytosis or myocarditis. For trough steady-state clozapine serum concentrations, the therapeutic reference range is narrow, from 350 to 600 ng/mL with the potential for toxicity and ADRs as concentrations increase. Clozapine is mainly metabolized by CYP1A2 (female non-smokers, the lowest dose; male smokers, the highest dose). Poor metabolizer status through phenotypic conversion is associated with co-prescription of inhibitors (including oral contraceptives and valproate), obesity, or inflammation with C-reactive protein (CRP) elevations. The Asian population (Pakistan to Japan) or the Americas’ original inhabitants have lower CYP1A2 activity and require low...
Background: ADHD limits the ability to comply with Covid-19 prevention recommendations. We hypoth... more Background: ADHD limits the ability to comply with Covid-19 prevention recommendations. We hypothesized that ADHD constitutes a risk factor for Covid-19 infection and that pharmacotherapy may lower that risk. Methods: Study population included all subjects ( N = 14,022) registered with Leumit Health Services between February 1st and April 30, 2020, who underwent at least one Covid-19 test. Data were collected from the electronic health records. Purchasing consecutively at least three ADHD-medication-prescriptions during past year was considered drug-treatment. Results: A total of 1,416 (10.1%) subjects (aged 2 months–103 years) were Covid-19-positive.They were significantly younger, and had higher rates of ADHD (adjOR 1.58 (95% CI 1.27–1.96, p < .001) than Covid-19-negative subjects. The risk for Covid-19-Positive was higher in untreated-ADHD subjects compared to non-ADHD subjects [crudeOR 1.61 (95% CI 1.36–1.89, p < .001)], while no higher risk was detected in treated ones [c...
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Papers by Abraham Weizman