Sujaya Parthasarathy

ORCID: 0000-0003-3486-1119
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About
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Research Areas
  • Substance Abuse Treatment and Outcomes
  • Healthcare Policy and Management
  • Homelessness and Social Issues
  • Mental Health Treatment and Access
  • Alcohol Consumption and Health Effects
  • Child and Adolescent Psychosocial and Emotional Development
  • Adolescent and Pediatric Healthcare
  • Schizophrenia research and treatment
  • HIV/AIDS Research and Interventions
  • HIV, Drug Use, Sexual Risk
  • Opioid Use Disorder Treatment
  • Primary Care and Health Outcomes
  • Food Security and Health in Diverse Populations
  • Health Policy Implementation Science
  • Health Systems, Economic Evaluations, Quality of Life
  • Health disparities and outcomes
  • Pharmaceutical Practices and Patient Outcomes
  • Obesity, Physical Activity, Diet
  • Prenatal Substance Exposure Effects
  • Diabetes, Cardiovascular Risks, and Lipoproteins
  • Child and Adolescent Health
  • Mental Health and Patient Involvement
  • Alcoholism and Thiamine Deficiency
  • Childhood Cancer Survivors' Quality of Life
  • Forensic Toxicology and Drug Analysis

Kaiser Permanente Oakland Medical Center
2025

Kaiser Permanente
2013-2023

Kaiser Permanente San Francisco Medical Center
2020

University of California, San Francisco
2011-2016

University of California System
2010

Boston University
2001

Brandeis University
2001

New England Research (United States)
2001

Colorado Permanente Medical Group
1999

ContextThe prevalence of medical disorders is high among substance abuse patients, yet services are seldom provided in coordination with treatment.ObjectiveTo examine differences treatment outcomes and costs between integrated independent models care as well the effect a subgroup patients abuse–related conditions (SAMCs).DesignRandomized controlled trial conducted April 1997 December 1998.Setting PatientsAdult men women (n = 592) who were admitted to large health maintenance organization...

10.1001/jama.286.14.1715 article EN JAMA 2001-10-10

Substance abuse and health problems seem to be inextricably related. Yet, prior research on the conditions related substance is largely focused alcohol from patients treated in publicly funded programs, inpatients, general population.This study compares prevalence of medical psychiatric among 747 3690 demographically matched controls same maintenance organization, examines whether any heightened for (relative controls) varies according demographic subgroups type substance.Approximately one...

10.1001/archinte.163.20.2511 article EN Archives of Internal Medicine 2003-11-10

<h3>Importance</h3> Excessive alcohol consumption is associated with increased incidence of several medical conditions, but few nonveteran, population-based studies have assessed levels use across conditions. <h3>Objective</h3> To examine associations between conditions and in a sample primary care patients using electronic health record data. <h3>Design, Setting, Participants</h3> This cross-sectional study used separate multinomial logistic regression models to estimate adjusted 26 2 720...

10.1001/jamanetworkopen.2020.4687 article EN cc-by-nc-nd JAMA Network Open 2020-05-13

Objective: This study examines the hypothesis that treatment reduces medical utilization and costs of patients with substance use problems. Method: Adult (N = 1.011; 67% men) entering outpatient chemical dependency recovery program at Sacramento Kaiser Permanente over a 2-year period were recruited into study. Medical examined for 18 months prior after intake. To account overall changes in cost, an age, gender length-of-enrollment matched nonpatient control group 4,925) was selected from...

10.15288/jsa.2001.62.89 article EN Journal of Studies on Alcohol 2001-01-01

Abstract Background and Aims The increasing trend in alcohol consumption among women, exacerbated by the COVID‐19 pandemic, is of growing concern. Screening, brief intervention, referral to treatment primary care an efficacious cost‐effective approach for unhealthy use. However, disparities exist delivery interventions sex, age race/ethnicity. This study measures intervention rates eligible patients race/ethnicity their intersectionality, context a program systematic screening adult large,...

10.1111/add.16195 article EN Addiction 2023-03-29

Objective. To examine the impact of integrating medical and substance abuse treatment on health care utilization cost. Research Design. Randomized clinical trial assigning patients to one two modalities: an Integrated Care model where primary is provided along with within unit Independent in HMO’s clinics independently from treatment. Subjects. Adult entering at outpatient Chemical Dependency Recovery Program Kaiser Sacramento. Measures. Medical cost for 12 months pretreatment after entry....

10.1097/01.mlr.0000053018.20700.56 article EN Medical Care 2003-03-01

Objectives: How best to provide ongoing services patients with substance use disorders sustain long-term recovery is a significant clinical and policy question that has not been adequately addressed. Analyzing nine years of prospective data for 991 adults who entered abuse treatment in private, nonprofit managed care health plan, this study aimed examine the components continuing model (primary care, specialty treatment, psychiatric services) their combined effect on outcomes over after...

10.1176/ps.62.10.pss6210_1194 article EN Psychiatric Services 2011-10-01

To examine whether alcohol and other drug (AOD) treatment is related to reduced medical costs of family members.Using the administrative databases a private, integrated health plan, we matched AOD patients with plan members without disorders on age, gender utilization, identifying each group.Kaiser Permanente Northern California.Family abstinent non-abstinent control members.We measured abstinence at 1 year post-intake examined care per member-month controls through 5 years. We used...

10.1111/j.1360-0443.2010.02947.x article EN Addiction 2010-05-14

PurposeScreening, brief intervention, and referral to treatment (SBIRT) may impact future comorbidity healthcare utilization among adolescents screening positive for substance use or mood problems.MethodsIn a randomized trial sample, we compared an SBIRT group usual care use, mental health, medical diagnoses, over 7 years postscreening.ResultsIn logistic regression models adjusting patient characteristics, the had lower odds of any (Odds Ratio[OR] = 0.80, 95% Confidence Interval [CI]...

10.1016/j.jadohealth.2021.11.033 article EN cc-by-nc-nd Journal of Adolescent Health 2022-09-16

When used in general medical practices, buprenorphine is an effective treatment for opioid dependence, yet little known about how use of affects the utilization and cost health care commercial systems. The objective this retrospective cohort study was to examine patterns care, addiction medicine services, costs from system perspective. Individuals with two or more opioid-dependence diagnoses per year, large systems (System A: n = 1836; System B: 4204) over time span 2007–2008 were included....

10.1186/1940-0640-9-16 article EN cc-by Addiction Science & Clinical Practice 2014-08-14

Most studies on adolescent screening, brief intervention, and referral to treatment (SBIRT) have examined substance use outcomes. However, it may also impact service comorbidity-an understudied topic. We address this gap by examining effects of SBIRT health care comorbidities.In a randomized trial sample, we assessed 3 modalities: (1) pediatrician-delivered, (2) behavioral clinician-delivered, (3) usual. Medical comorbidity were compared between brief-intervention group with access for...

10.1542/peds.2018-2803 article EN PEDIATRICS 2019-04-24

Background Unhealthy alcohol use frequently co‐occurs with psychiatric disorders; however, little is known about the relationship between disorders and consumption levels . Understanding varying of unhealthy among individuals a variety in primary care would provide valuable insight for tailoring interventions. Methods We conducted cross‐sectional study 2,720,231 adult patients screened 2014 2017 at Kaiser Permanente Northern California, using electronic health record data. Alcohol level was...

10.1111/acer.14477 article EN cc-by-nc-nd Alcoholism Clinical and Experimental Research 2020-11-05

Background Lower-risk drinking is increasingly being examined as a treatment outcome for some patients following addiction treatment. However, few studies have the relationship between status (lower-risk in particular) and healthcare utilization cost, which has important policy implications. Methods Participants were adults with alcohol dependence and/or abuse diagnoses who received outpatient other drug private, nonprofit integrated delivery system had follow-up interview 6 months after...

10.1111/acer.12273 article EN Alcoholism Clinical and Experimental Research 2013-10-07

Background: The importance of a continuing care approach for substance use disorders (SUDs) is increasingly being recognized. Our prior research found that Continuing Care model SUDs incorporates 3 components (regular primary care, and specialty SUD psychiatric treatment as needed) beneficial to long-term remission. study builds on this work examine the cost implications model. Objectives: To associations between receiving subsequent health costs over 9 years among adults entering outpatient...

10.1097/mlr.0b013e318245a66b article EN Medical Care 2012-01-13

Objectives To evaluate associations between alcohol brief intervention (BI) in primary care and 12-month drinking outcomes 18-month health among adults with hypertension type 2 diabetes (T2D). Design A population-based observational study using electronic records data. Setting An integrated healthcare system that implemented system-wide screening, BI referral to treatment adult care. Participants Adult patients (N=72 979) or T2D (N=19 642) who screened positive for unhealthy use 2014 2017....

10.1136/bmjopen-2022-064088 article EN cc-by-nc BMJ Open 2023-01-01

Objectives: How best to provide ongoing services patients with substance use disorders sustain long-term recovery is a significant clinical and policy question that has not been adequately addressed. Analyzing nine years of prospective data for 991 adults who entered abuse treatment in private, nonprofit managed care health plan, this study aimed examine the components continuing model (primary care, specialty treatment, psychiatric services) their combined effect on outcomes over after...

10.1176/appi.ps.62.10.1194 article EN Psychiatric Services 2011-10-01
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