Health Services Research Commons^™

Communication Of Patients’ And Family Members’ Ethical Concerns To Their Healthcare Providers, Mariam Noorulhuda, Christine Grady, Paul Wakim, Talia Bernhard, Hae Lin Cho, Marion Danis

Student Papers, Posters & Projects

BACKGROUND: Little is known about communication between patients, families, and healthcare providers regarding ethical concerns that patients and families experience in the course of illness and medical care. To address this gap in the literature, we surveyed patients and family members to learn about their ethical concerns and the extent to which they discussed them with their healthcare providers.

METHODS: We surveyed adult, English-speaking patients and family members receiving inpatient care in five hospitals in the Washington DC-Baltimore metropolitan area from July 2017 to March 2020. Descriptive statistics were used to determine the frequency, comfortableness, and helpfulness of discussions regarding …

Exploring Risk Factors For Major Depressive Disorder For Female Patients Aged 18 Or Older Living In Ocean County, New Jersey, James Mack

Rowan-Virtua Research Day

Background: The incidence and prevalence of major depressive disorder has been increasing worldwide, in the United States of America, and on a local level. The population of Ocean County, New Jersey, a predominantly Caucasian, female, middle-aged population, may be at increased risk of developing major depressive disorder.

Purpose: To explore the social determinants of health and risk factors for major depressive disorder for female patients aged 18 or older living in Ocean County, New Jersey.

Methods: This literature review mainly used PubMed and Scopus for journal articles and utilized governmental databases for additional population data.

Results: Analyses conducted on social …

Disparities In Adult Critical Care Resources Across Pakistan: Findings From A National Survey And Assessment Using A Novel Scoring System, Mustafa Ali Khan, Hamna Shahbaz, Ali Aahil Noorali, Anam Noor Ehsan, Mareeha Zaki, Fahham Asghar, Mohammed Moizul Hassan, Haroon Muhammad Arshad, Muhammad Sohaib, Adil H. Haider

Medical College Documents

Background: In response to the COVID-19 pandemic, concerted efforts were made by provincial and federal governments to invest in critical care infrastructure and medical equipment to bridge the gap of resource-limitation in intensive care units (ICUs) across Pakistan. An initial step in creating a plan toward strengthening Pakistan's baseline critical care capacity was to carry out a needs-assessment within the country to assess gaps and devise strategies for improving the quality of critical care facilities.
Methods: To assess the baseline critical care capacity of Pakistan, we conducted a series of cross-sectional surveys of hospitals providing COVID-19 care across the country. …

Association Between Post-Hospital Clinic And Telephone Follow-Up Provider Visits With 30-Day Readmission Risk In An Integrated Health System, Huong Q. Nguyen, Aileen Baecker, Timothy Ho, Dan N. Huynh, Heather L. Watson, Jing Li, Ernest Shen

Center for Health Services Research Faculty Publications

BACKGROUND: Follow-up visits with clinic providers after hospital discharge may not be feasible for some patients due to functional limitations, transportation challenges, need for physical distancing, or fear of exposure especially during the current COVID-19 pandemic.

METHODS: The aim of the study was to determine the effects of post-hospital clinic (POSH) and telephone (TPOSH) follow-up provider visits versus no visit on 30-day readmission. We used a retrospective cohort design based on data from 1/1/2017 to 12/31/2019 on adult patients (n = 213,513) discharged home from 15 Kaiser Permanente Southern California hospitals. Completion of POSH or TPOSH provider visits within …

Health Concerns Of Adolescents And Adults With Spina Bifida, Jessica A. Starowicz

Electronic Thesis and Dissertation Repository

The Transitional and Lifelong Care (TLC) program is a multidisciplinary clinical service providing comprehensive, coordinated care to adolescents and adults with spina bifida (SB). This study sought to identify the most common health concerns among this population at initial consultation and identify patient factors related to these concerns to ultimately improve health care delivery. A retrospective chart review was performed. Descriptive analyses were completed and associations between concerns and patient factors were determined using Spearman’s rho correlation coefficients. A multiple linear regression was performed to estimate the relationship between patient factors and total number of concerns reported. Ninety-four patient charts …

An Interdisciplinary Study To Understand Treatment Seeking Behavior Among Female Survivors Of Anorexia Nervosa, Meaghan Victoria Tipton

Graduate Theses and Dissertations

This study was done to examine what psychosocial factors influence treatment seeking behavior among female survivors of eating disorders. This study uses a mixed methods survey consisting of open-ended item questions regarding treatment experience and social environment, and close-ended items to measure constructs from the Health Belief Model. Fourteen participants were recruited for this study to retrospectively detail their experiences of treatment during their eating disorder. All fourteen participants identified as Caucasian, thirteen identified as female, one identified with other gender, each with a history of medically diagnosed anorexia nervosa. The mean of age of current participants was 29.46, and …

Hospital Readmission Of Adolescents And Young Adults With Complex Chronic Disease., Peter Dunbar, Matt Hall, James C. Gay, Clarissa Hoover, Jessica L. Markham, Jessica L. Bettenhausen, James M. Perrin, Karen A. Kuhlthau, Morgan Crossman, Brigid Garrity, Jay G. Berry

Manuscripts, Articles, Book Chapters and Other Papers

Importance: Adolescents and young adults (AYA) who have complex chronic disease (CCD) are a growing population that requires hospitalization to treat severe, acute health problems. These patients may have increased risk of readmission as demands on their self-management increase and as they transfer care from pediatric to adult health care practitioners.

Objective: To assess variation across CCDs in the likelihood of readmission for AYA with increasing age.

Design, Setting, and Participants: Retrospective 1-year cross-sectional study of the 2014 Agency for Healthcare Research and Quality Nationwide Readmissions Database for all US hospitals. Participants were 215 580 hospitalized individuals aged 15 to …

Evaluation Of A Tennessee Statewide Initiative To Reduce Early Elective Deliveries Using Quasi-Experimental Methods, Michael P. Thompson, Ilana Graetz, Caitlin N. Mckillop, Peter H. Grubb, Teresa M. Waters

Health Management and Policy Faculty Publications

Background: Concerted quality improvement (QI) efforts have been taken to discourage the practice of early elective deliveries (EEDs), but few studies have robustly examined the impact of directed QI interventions in reducing EED practices. Using quasi-experimental methods, we sought to evaluate the impact of a statewide QI intervention to reduce the practice of EEDs.

Methods: Retrospective cohort study of vital records data (2007 to 2013) for all singleton births occurring ≥36 weeks in 66 Tennessee hospitals grouped into three QI cohorts. We used interrupted-time series to estimate the effect of the QI intervention on the likelihood of an EED birth …

Evaluation Of The Hiv Infant Tracking System (Hitsystem) To Optimise Quality And Efficiency Of Early Infant Diagnosis: A Cluster-Randomised Trial In Kenya., Sarah Finocchario-Kessler, Brad Gautney, Anlin Cheng, Catherine Wexler, May Maloba, Niaman Nazir, Samoel Khamadi, Raphael Lwembe, Melinda Brown, Thomas A. Odeny, Jacinda K. Dariotis, Matthew Sandbulte, Natabhona Mabachi, Kathy Goggin

Manuscripts, Articles, Book Chapters and Other Papers

BACKGROUND: The HIV Infant Tracking System (HITSystem) is a web-based intervention linking providers of early infant diagnosis, laboratory technicians, and mothers and infants to improve outcomes for HIV-exposed infants. We aimed to evaluate the efficacy of the HITSystem on key outcomes of early infant diagnosis.

METHODS: We did a cluster-randomised trial at six hospitals in Kenya, which were matched on geographic region, resource level, and volume of patients (high, medium, and low). We randomly allocated hospitals within a matched pair to either the HITSystem (intervention; n=3) or standard of care (control; n=3). A random number generator was used to assign …

Perspectives From The Society For Pediatric Research: Interventions Targeting Social Needs In Pediatric Clinical Care., Andrew F. Beck, Alicia J. Cohen, Jeffrey D. Colvin, Caroline M. Fichtenberg, Eric W. Fleegler, Arvin Garg, Laura M. Gottlieb, Matthew S S. Pantell, Megan T. Sandel, Adam Schickedanz, Robert S. Kahn

Manuscripts, Articles, Book Chapters and Other Papers

The social determinants of health (SDoH) are defined by the World Health Organization as the "conditions in which people are born, grow, live, work, and age." Within pediatrics, studies have highlighted links between these underlying social, economic, and environmental conditions, and a range of health outcomes related to both acute and chronic disease. Additionally, within the adult literature, multiple studies have shown significant links between social problems experienced during childhood and "adult diseases" such as diabetes mellitus and hypertension. A variety of potential mechanisms for such links have been explored including differential access to care, exposure to carcinogens and pathogens, …

Agreement Between Clinician-Rated Versus Patient-Reported Outcomes In Huntington Disease, Noelle E Carlozzi, Nicholas R Boileau, Joel S Perlmutter, Kelvin L Chou, Julie C Stout, Jane S Paulsen, Michael K Mccormack, David Cella, Martha A Nance, Jin-Shei Lai, Praveen Dayalu

Rowan-Virtua School of Osteopathic Medicine Faculty Scholarship

BACKGROUND: Clinician-rated measures of functioning are often used as primary endpoints in clinical trials and other behavioral research in Huntington disease. As study costs for clinician-rated assessments are not always feasible, there is a question of whether patient self-report of commonly used clinician-rated measures may serve as acceptable alternatives in low risk behavioral trials.

AIM: The purpose of this paper was to determine the level of agreement between self-report and clinician-ratings of commonly used functional assessment measures in Huntington disease.

DESIGN: 486 participants with premanifest or manifest Huntington disease were examined. Total Functional Capacity, Functional Assessment, and Independence Scale assessments …

A Longitudinal Analysis Of The Impact Of Child Custody Loss On Drug Use And Crime Among A Sample Of African American Mothers, Kathi L. H. Harp, Carrie B. Oser

Health Management and Policy Faculty Publications

This study examines the influence of child custody loss on drug use and crime among a sample of African American mothers. Two types of custody loss are examined: informal custody loss (child living apart from mother but courts not involved), and official loss (child removed from mother’s care by authorities).

Methods—Using data from 339 African American women, longitudinal random coefficient models analyzed the effects of each type of custody loss on subsequent drug use and crime.

Results—Results indicated that both informal and official custody loss predicted increased drug use, and informal loss predicted increased criminal involvement. Findings demonstrate …

A New Measure For End Of Life Planning, Preparation, And Preferences In Huntington Disease: Hdqlife End Of Life Planning, Noelle E Carlozzi, E A Hahn, S A Frank, J S Perlmutter, N D Downing, M K Mccormack, S Barton, M A Nance, S G Schilling, Hdqlife Site Investigators And Coordinators

Rowan-Virtua School of Osteopathic Medicine Faculty Scholarship

BACKGROUND: Huntington disease is a fatal inherited neurodegenerative disease. Because the end result of Huntington disease is death due to Huntington disease-related causes, there is a need for better understanding and caring for individuals at their end of life.

AIM: The purpose of this study was to develop a new measure to evaluate end of life planning.

DESIGN: We conducted qualitative focus groups, solicited expert input, and completed a literature review to develop a 16-item measure to evaluate important aspects of end of life planning for Huntington disease. Item response theory and differential item functioning analyses were utilized to examine …

Healthcare Contact And Treatment Uptake Following Hepatitis C Virus Screening And Counseling Among Rural Appalachian People Who Use Drugs, Dustin B. Stephens, April M. Young, Jennifer R. Havens

Behavioral Science Faculty Publications

Background—Hepatitis C virus (HCV) remains a major contributor to morbidity and mortality worldwide. Since 2009, Kentucky has led the United States in cases of acute HCV, driven largely by injection drug use in rural areas. Improved treatment regimens hold promise of mitigating the impact and transmission of HCV, but numerous barriers obstruct people who inject drugs (PWID) from receiving care, particularly in medically underserved settings.

Methods—503 rural people who use drugs were recruited using respondent-driven sampling and received HCV screening and post-test counseling. Presence of HCV antibodies was assessed using enzyme immunoassay of dried blood samples. Sociodemographic and …

Substance Use Disorders, Violence, Mental Health, And Hiv: Differentiating A Syndemic Factor By Gender And Sexuality, Kiyomi Tsuyuki, Eileen V. Pitpitan, Maria A. Levi-Minzi, Lianne A. Urada, Steven P. Kurtz, Jamila K. Stockman, Hilary L. Surratt

Center for Health Services Research Faculty Publications

This paper measures syndemic substance use disorder, violence, and mental health and compares the syndemic among HIV-infected heterosexual men, heterosexual women, and men who have sex with men (MSM). Data were from a sample of high needs substance-using, HIV-infected people in South Florida between 2010 and 2012 (n = 481). We used confirmatory factor analysis to measure a syndemic latent variable and applied measurement invariance models to identify group differences in the data structure of syndemic co-morbidities among heterosexual men, heterosexual women, and MSM. We found that variables used to measure the syndemic fit each sub-group, supporting that substance use …

A Randomized Trial Of Brief Assessment Interventions For Young Adults Who Use Drugs In The Club Scene, Steven P. Kurtz, Mance E. Buttram, Maria E. Pagano, Hilary L. Surratt

Center for Health Services Research Faculty Publications

Background—Efficacious interventions to reduce drug use and its consequences for club drug using populations are not apparent in the literature. We tested interviewer-(CAPI) and self-administered (ACASI) comprehensive health and social risk assessments as distinct interventions compared to waitlist control.

Methods—750 men and women ages 18-39 with multidrug use and heterosexual behavior were randomized in equal proportions to the three conditions. Instrumentation included well-tested measures of drug use, risky sex, mental distress and substance dependence.

Results—The sample was 56% male; mean age=25. Reported risk behaviors and health consequences did not differ by assessment modality. Adjusted HLM analyses showed …

Serious Mental Illness Among Young Adult Women Who Use Drugs In The Club Scene: Co-Occurring Biopsychosocial Factors, Maayan Lawental, Hilary L. Surratt, Mance E. Buttram, Steven P. Kurtz

Center for Health Services Research Faculty Publications

Young women who regularly attend nightclubs are at risk for numerous health and social consequences, including mental distress, sexual and physical victimization and substance dependence. This paper uses a biopsychosocial framework to examine co-occurring mental health problems, victimization, substance dependence, sexual risk and physical pain among a sample of young women who use drugs (N = 222) in Miami’s club scene. The majority of women were under 24 years old, Hispanic, and identified as heterosexual. Almost all the women reported past 90-day use of alcohol, ecstasy/MDMA, marijuana, cocaine and prescription opioids and benzodiazepines; 32% of women reported being in a …

Acceptability Of Hiv Testing Sites Among Rural And Urban African Americans Who Use Cocaine, D. Keith Branham, Tyrone F. Borders, Katharine E. Stewart, Geoffrey M. Curran, Brenda M. Booth

Health Management and Policy Faculty Publications

African Americans (AAs) who use cocaine in the Southern region of the U.S. have a relatively high risk of HIV and need for HIV testing. Among this group, those residing in rural areas may have less favorable opinions about common HIV testing sites, which could inhibit HIV testing. We examined rural/urban variations in their acceptability of multiple HIV testing sites (private physician clinic, local health department, community health center, community HIV fair, hospital emergency department, blood plasma donation center, drug abuse treatment facility, and mobile van or community outreach worker). Results from partial proportional odds and logistic regression analyses indicate …

Progress Toward Eliminating Mother To Child Transmission Of Hiv In Kenya: Review Of Treatment Guideline Uptake And Pediatric Transmission At Four Government Hospitals Between 2010 And 2012., Sarah Finocchario-Kessler, Kristine F. Clark, Samoel Khamadi, Brad J. Gautney, Vincent Okoth, Kathy Goggin, Hitsystem Study Team

Manuscripts, Articles, Book Chapters and Other Papers

We analyzed prevention of mother-to-child transmission (PMTCT) data from a retrospective cohort of n = 1365 HIV+ mothers who enrolled their HIV-exposed infants in early infant diagnosis services in four Kenyan government hospitals from 2010 to 2012. Less than 15 and 20 % of mother-infant pairs were provided with regimens that met WHO Option A and B/B+ guidelines, respectively. Annually, the gestational age at treatment initiation decreased, while uptake of Option B/B+ increased (all p's < 0.001). Pediatric HIV infection was halved (8.6-4.3 %), yet varied significantly by hospital. In multivariable analyses, HIV-exposed infants who received no PMTCT (AOR 4.6 [2.49, 8.62], p < 0.001), mixed foods (AOR 5.0 [2.77, 9.02], p < 0.001), and care at one of the four hospitals (AOR 3.0 [1.51, 5.92], p = 0.002) were more likely to be HIV-infected. While the administration and uptake of WHO PMTCT guidelines is improving, an expanded focus on retention and medication adherence will further reduce pediatric HIV transmission.

Living With Traumatic Brain Injury In A Rural Setting: Supports And Barriers Across The Continuum Of Care, Anne L. Harrison, Elizabeth G. Hunter, Heather Thomas, Paige Bordy, Erin Stokes, Patrick H. Kitzman

Physical Therapy Faculty Publications

Purpose: Traumatic brain injury (TBI) is prevalent in Kentucky and comes with a high cost in care and quality of life for individuals and caregivers affected. Many people living with the condition of TBI have unmet needs. Research among people living with TBI in rural areas is limited. The purposes of this study were to (1) increase understanding of the lived experience of people with TBI and caregivers in rural regions of Kentucky across the continuum of their care and (2) provide their perspectives on barriers and facilitators of optimal function and well-being.

Methods: A qualitative descriptive interview study was …

Project Achieve – Using Implementation Research To Guide The Evaluation Of Transitional Care Effectiveness, Jing Li, Jane Brock, Brian Jack, Brian Mittman, Mary Naylor, Joann Sorra, Glen P. Mays, Mark V. Williams, Arnold J. Stromberg, Heather M. Bush, Allison Scott, Robert Duff, Emily R. Clear, Hannah Keeler, Project Achieve

Internal Medicine Faculty Publications

Background: Poorly managed hospital discharges and care transitions between health care facilities can cause poor outcomes for both patients and their caregivers. Unfortunately, the usual approach to health care delivery does not support continuity and coordination across the settings of hospital, doctors’ offices, home or nursing homes. Though complex efforts with multiple components can improve patient outcomes and reduce 30-day readmissions, research has not identified which components are necessary. Also we do not know how delivery of core components may need to be adjusted based on patient, caregiver, setting or characteristics of the community, or how system redesign can be …

Correspondence Between Self-Report And Interview-Based Assessments Of Antisocial Personality Disorder, Laura Guy, Norman Poythress, Kevin Douglas, Jennifer Skeem, John Edens

Norman Poythress

Antisocial personality disorder (ASPD) is associated with suicide, violence, and risk-taking behavior and can slow response to first-line treatment for Axis I disorders. ASPD may be assessed infrequently because few efficient diagnostic tools are available. This study evaluated 2 promising self-report measures for assessing ASPD--the ASPD scale of the Personality Diagnostic Questionnaire-4 (PDQ-4; S. E. Hyler, 1994) and the Personality Assessment Inventory (PAI; L. Morey, 1991, 2007)--as well as the ASPD module of the Structured Clinical Interview for DSM-IV Axis II (SCID-II; M. B. First, R. L. Spitzer, M. Gibbon, J. B. W. Williams, and L. S. Benjamin, 1997). The …

Factors Differentiating Successful Versus Unsuccessful Malingerers, John Edens, Laura Guy, Randy Otto, Jacqueline Buffington, Tara Tomicic, Norman Poythress

Norman Poythress

Relatively little is known about the processes in which "successful" malingerers engage to avoid detection. This study summarizes the response strategies used by participants (N = 540) instructed to feign a specific mental disorder while completing various self-report instruments designed to detect faking. Postexperiment questionnaires indicated that those who were able to appear symptomatic while avoiding being detected as feigning (n = 60) were more likely to endorse a lower rate of legitimate symptoms, to avoid overly unusual or bizarre items, and to base their responses on their own personal experiences.

Effects Of Cost Sharing On Seeking Care For Serious And Minor Symptoms. Results Of A Randomized Controlled Trial, Martin Shapiro, John Ware, Cathy Sherbourne

Martin Shapiro

To estimate the effect of cost sharing on seeking care for serious and minor symptoms, we analyzed data for 3539 persons aged 17 to 61 from the Rand Health Insurance Experiment. Participants were randomly assigned to a free-care group or to insurance plans requiring them to pay part of the costs (cost-sharing group). Annual surveys were administered to determine if participants had serious and minor symptoms during the preceding month and whether they saw a physician. Serious symptoms were judged by a panel of physicians to warrant care in most instances; minor symptoms were judged neither to be severe nor …

‘Much Clearer With Pictures’: Using Community-Based Participatory Research To Design And Test A Picture Option Grid For Underserved Patients With Breast Cancer, Marie-Anne Durand, Shama Alam, Stuart W. Grande, Glyn Elwyn

Dartmouth Scholarship

Women of low socioeconomic status (SES) diagnosed with early stage breast cancer experience decision-making, treatment and outcome disparities. Evidence suggests that decision aids can benefit underserved patients, when tailored to their needs. Our aim was to develop and test the usability, acceptability and accessibility of a pictorial encounter decision aid targeted at women of low SES diagnosed with early stage breast cancer.

Ideas For A Healthy Baby--Reducing Disparities In Use Of Publicly Reported Quality Data: Study Protocol For A Randomized Controlled Trial, Sarah L. Goff, Penelope S. Pekow, Katharine O. White, Tara Lagu, Kathleen M. Mazor, Peter K. Lindenauer

Sarah L. Goff MD

BACKGROUND: Publicly reported performance on quality measures is intended to enable patients to make more informed choices. Despite the growing availability of these reports, patients' use remains limited and disparities exist. Low health literacy and numeracy are two barriers that may contribute to these disparities. Patient navigators have helped patients overcome barriers such as these in other areas, such as cancer care and may prove useful for overcoming barriers to using publicly reported quality data. METHODS/DESIGN: The goals of this study are: to determine the efficacy of a patient navigator intervention to assist low-income pregnant women in the use of …

Is It Abuse? Deaf Female Undergraduates' Labeling Of Partner Violence, Melissa Anderson, Caroline Kobek Pezzarossi

Melissa L. Anderson

The current study investigated the labeling of abuse experiences in a sample of 97 Deaf female undergraduate students, exploring the following questions: What is the prevalence of violent behaviors experienced by Deaf female undergraduates in their past-year relationships, what proportion of these relationships are identified as "abuse," and what scripts and strategies do Deaf female undergraduates utilize to label their experiences of partner violence? Results indicated that over half of the sample chose not to label past-year experiences of psychological aggression, physical assault, and sexual coercion as abuse, even when these experiences included severe violence. Implications for the Deaf education …

Black Deaf Individuals' Reading Skills: Influence Of Asl, Culture, Family Characteristics, Reading Experience, And Education, Candace Myers, M. Diane Clark, Millicent Musyoka, Melissa Anderson, Gizelle Gilbert, Selina Agyen, Peter Hauser

Melissa L. Anderson

Previous research on the reading abilities of Deaf individuals from various cultural groups suggests that Black Deaf and Hispanic Deaf individuals lag behind their White Deaf peers. The present study compared the reading skills of Black Deaf and White Deaf individuals, investigating the influence of American Sign Language (ASL), culture, family characteristics, reading experience, and education. (The descriptor Black is used throughout the present article, as Black Deaf individuals prefer this term to African American. For purposes of parallel construction, the term White is used instead of European American.) It was found that Black Deaf study participants scored lower on …

A Call For Better Care: The Impact Of Postnatal Contact Services On Women’S Parenting Confidence And Experiences Of Postpartum Care In Queensland, Australia, Yvette D. Miller, Aimée C C. Dane, Rachel Thompson

Dartmouth Scholarship

BackgroundUniversal postnatal contact services are provided in several Australian states, but their impact on women’s postnatal care experience has not been evaluated. Furthermore, there is lack of evidence or consensus about the optimal type and amount of postpartum care after hospital discharge for maternal outcomes. This study aimed to assess the impact of providing Universal Postnatal Contact Service (UPNCS) funding to public birthing facilities in Queensland, Australia on women’s postna

Wordless Intervention For Epilepsy In Learning Disabilities (Wield): Study Protocol For A Randomized Controlled Feasibility Trial, Marie-Anne Durand, Bob Gates, Georgina Parkes, Asif Zia

Dartmouth Scholarship

Epilepsy is the most common neurological problem that affects people with learning disabilities. The high seizure frequency, resistance to treatments, associated skills deficit and co-morbidities make the management of epilepsy particularly challenging for people with learning disabilities. The Books Beyond Words booklet for epilepsy uses images to help people with learning disabilities manage their condition and improve quality of life. Our aim is to conduct a randomized controlled feasibility trial exploring key methodological, design and acceptability issues, in order to subsequently undertake a large-scale randomized controlled trial of the Books Beyond Words booklet for epilepsy.