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Liu Y, Manavalan P, Siddiqi K, Cook RL, Prosperi M. Comorbidity Burden and Health Care Utilization by Substance use Disorder Patterns among People with HIV in Florida. AIDS Behav 2024; 28:2286-2295. [PMID: 38551720 PMCID: PMC11199104 DOI: 10.1007/s10461-024-04325-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/14/2024] [Indexed: 05/16/2024]
Abstract
Substance use disorder (SUD), a common comorbidity among people with HIV (PWH), adversely affects HIV clinical outcomes and HIV-related comorbidities. However, less is known about the incidence of different chronic conditions, changes in overall comorbidity burden, and health care utilization by SUD status and patterns among PWH in Florida, an area disproportionately affected by the HIV epidemic. We used electronic health records (EHR) from a large southeastern US consortium, the OneFlorida + clinical research data network. We identified a cohort of PWH with 3 + years of EHRs after the first visit with HIV diagnosis. International Classification of Diseases (ICD) codes were used to identify SUD and comorbidity conditions listed in the Charlson comorbidity index (CCI). A total of 42,271 PWH were included (mean age 44.5, 52% Black, 45% female). The prevalence SUD among PWH was 45.1%. Having a SUD diagnosis among PWH was associated with a higher incidence for most of the conditions listed on the CCI and faster increase in CCI score overtime (rate ratio = 1.45, 95%CI 1.42, 1.49). SUD in PWH was associated with a higher mean number of any care visits (21.7 vs. 14.8) and more frequent emergency department (ED, 3.5 vs. 2.0) and inpatient (8.5 vs. 24.5) visits compared to those without SUD. SUD among PWH was associated with a higher comorbidity burden and more frequent ED and inpatient visits than PWH without a diagnosis of SUD. The high SUD prevalence and comorbidity burden call for improved SUD screening, treatment, and integrated care among PWH.
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Affiliation(s)
- Yiyang Liu
- Department of Epidemiology, College of Public Health and Health Professions and College of Medicine, University of Florida, 2004 Mowry Road, PO Box 100231, Gainesville, FL, 32610-0231, USA.
| | - Preeti Manavalan
- Department of Medicine, Division of Infectious Diseases & Global Medicine, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Khairul Siddiqi
- Department of Health Outcomes and Biomedical Informatics, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Robert L Cook
- Department of Epidemiology, College of Public Health and Health Professions and College of Medicine, University of Florida, 2004 Mowry Road, PO Box 100231, Gainesville, FL, 32610-0231, USA
| | - Mattia Prosperi
- Department of Epidemiology, College of Public Health and Health Professions and College of Medicine, University of Florida, 2004 Mowry Road, PO Box 100231, Gainesville, FL, 32610-0231, USA
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Khoraminejad B, Sakowitz S, Gao Z, Chervu N, Curry J, Ali K, Bakhtiyar SS, Benharash P. Association of substance-use disorder with outcomes of major elective abdominal operations: A contemporary national analysis. Surg Open Sci 2024; 19:44-49. [PMID: 38585038 PMCID: PMC10995883 DOI: 10.1016/j.sopen.2024.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 03/15/2024] [Indexed: 04/09/2024] Open
Abstract
Background Affecting >20million people in the U.S., including 4 % of all hospitalized patients, substance use disorder (SUD) represents a growing public health crisis. Evaluating a national cohort, we aimed to characterize the association of concurrent SUD with perioperative outcomes and resource utilization following elective abdominal operations. Methods All adult hospitalizations entailing elective colectomy, gastrectomy, esophagectomy, hepatectomy, and pancreatectomy were tabulated from the 2016-2020 National Inpatient Sample. Patients with concurrent substance use disorder, comprising alcohol, opioid, marijuana, sedative, cocaine, inhalant, hallucinogen, or other psychoactive/stimulant use, were considered the SUD cohort (others: nSUD). Multivariable regression models were constructed to evaluate the independent association between SUD and key outcomes. Results Of ∼1,088,145 patients, 32,865 (3.0 %) comprised the SUD cohort. On average, SUD patients were younger, more commonly male, of lowest quartile income, and of Black race. SUD patients less frequently underwent colectomy, but more often pancreatectomy, relative to nSUD.Following risk adjustment and with nSUD as reference, SUD demonstrated similar likelihood of in-hospital mortality, but remained associated with increased odds of any perioperative complication (Adjusted Odds Ratio [AOR] 1.17, CI 1.09-1.25). Further, SUD was linked with incremental increases in adjusted length of stay (β + 0.90 days, CI +0.68-1.12) and costs (β + $3630, CI +2650-4610), as well as greater likelihood of non-home discharge (AOR 1.54, CI 1.40-1.70). Conclusions Concurrent substance use disorder was associated with increased complications, resource utilization, and non-home discharge following major elective abdominal operations. Novel interventions are warranted to address increased risk among this vulnerable population and address significant disparities in postoperative outcomes.
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Affiliation(s)
- Baran Khoraminejad
- CORELAB, Department of Surgery, University of California, Los Angeles, Los Angeles, CA, United States of America
- Boston University, Boston, MA, United States of America
| | - Sara Sakowitz
- CORELAB, Department of Surgery, University of California, Los Angeles, Los Angeles, CA, United States of America
| | - Zihan Gao
- CORELAB, Department of Surgery, University of California, Los Angeles, Los Angeles, CA, United States of America
| | - Nikhil Chervu
- CORELAB, Department of Surgery, University of California, Los Angeles, Los Angeles, CA, United States of America
- Department of Surgery, University of California, Los Angeles, Los Angeles, CA, United States of America
| | - Joanna Curry
- CORELAB, Department of Surgery, University of California, Los Angeles, Los Angeles, CA, United States of America
| | - Konmal Ali
- CORELAB, Department of Surgery, University of California, Los Angeles, Los Angeles, CA, United States of America
| | - Syed Shahyan Bakhtiyar
- CORELAB, Department of Surgery, University of California, Los Angeles, Los Angeles, CA, United States of America
- Department of Surgery, University of Colorado, Denver, Aurora, CO, United States of America
| | - Peyman Benharash
- CORELAB, Department of Surgery, University of California, Los Angeles, Los Angeles, CA, United States of America
- Department of Surgery, University of California, Los Angeles, Los Angeles, CA, United States of America
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Hayer S, Garg B, Wallace J, Prewitt KC, Lo JO, Caughey AB. Prenatal methamphetamine use increases risk of adverse maternal and neonatal outcomes. Am J Obstet Gynecol 2024:S0002-9378(24)00615-X. [PMID: 38789069 DOI: 10.1016/j.ajog.2024.05.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 05/15/2024] [Accepted: 05/17/2024] [Indexed: 05/26/2024]
Abstract
BACKGROUND Although methamphetamine use has been increasing in recent years and occurring within new populations and in broader geographical areas, there is limited research on its use and effect in pregnancy. OBJECTIVE This study aimed to examine the association between prenatal methamphetamine use and maternal and neonatal outcomes in a large, contemporary birth cohort. STUDY DESIGN This was a retrospective cohort study using California-linked vital statistics and hospital discharge data from 2008 to 2019. Methamphetamine use was identified using the International Classification of Disease, Ninth Revision and Tenth Revision, codes. Chi-square tests and multivariable Poisson regression models were used to evaluate the associations between methamphetamine use and maternal and neonatal outcomes. RESULTS A total of 4,775,463 pregnancies met the inclusion criteria, of which 18,473 (0.39%) had methamphetamine use. Compared with individuals without methamphetamine use, individuals with methamphetamine use had an increased risk of nonsevere hypertensive disorders (adjusted risk ratio, 1.81; 95% confidence interval, 1.71-1.90), preeclampsia with severe features (adjusted risk ratio, 3.38; 95% confidence interval, 3.14-3.63), placental abruption (adjusted risk ratio, 3.77; 95% confidence interval, 3.51-4.05), cardiovascular morbidity (adjusted risk ratio, 4.30; 95% confidence interval, 3.79-4.88), and severe maternal morbidity (adjusted risk ratio, 3.53; 95% confidence interval, 3.29-3.77). In addition, adverse neonatal outcomes were increased, including preterm birth at <37 weeks of gestation (adjusted risk ratio, 2.85; 95% confidence interval, 2.77-2.94), neonatal intensive care unit admission (adjusted risk ratio, 2.46; 95% confidence interval, 2.39-2.53), and infant death (adjusted risk ratio, 2.73; 95% confidence interval, 2.35-3.16). CONCLUSION Methamphetamine use in pregnancy is associated with an increased risk of adverse maternal and neonatal outcomes that persists after adjustment for confounding variables and sociodemographic factors. Our results can inform prenatal and postpartum care for this high-risk, socioeconomically vulnerable population.
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Affiliation(s)
- Sarena Hayer
- Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR.
| | - Bharti Garg
- Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR
| | - Jessica Wallace
- Department of Family Medicine, University of Colorado, Denver, CO
| | - Kristin C Prewitt
- Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR; Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR; Department of Internal Medicine, Addiction Medicine Section, Oregon Health & Science University, Portland, OR
| | - Jamie O Lo
- Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR; Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR; Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR
| | - Aaron B Caughey
- Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR; Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Oregon Health & Science University, Portland, OR
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Chhabra N, Smith D, Pachwicewicz P, Lin Y, Bhalla S, Maloney CM, Blue M, Lee P, Sharma B, Afshar M, Karnik NS. Performance of International Classification of Disease-10 codes in detecting emergency department patients with opioid misuse. Addiction 2024; 119:766-771. [PMID: 38011858 PMCID: PMC11162597 DOI: 10.1111/add.16394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 10/17/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND AND AIMS Accurate case discovery is critical for disease surveillance, resource allocation and research. International Classification of Disease (ICD) diagnosis codes are commonly used for this purpose. We aimed to determine the sensitivity, specificity and positive predictive value (PPV) of ICD-10 codes for opioid misuse case discovery in the emergency department (ED) setting. DESIGN AND SETTING Retrospective cohort study of ED encounters from January 2018 to December 2020 at an urban academic hospital in the United States. A sample of ED encounters enriched for opioid misuse was developed by oversampling ED encounters with positive urine opiate screens or pre-existing opioid-related diagnosis codes in addition to other opioid misuse risk factors. CASES A total of 1200 randomly selected encounters were annotated by research staff for the presence of opioid misuse within health record documentation using a 5-point scale for likelihood of opioid misuse and dichotomized into cohorts of opioid misuse and no opioid misuse. MEASUREMENTS Using manual annotation as ground truth, the sensitivity and specificity of ICD-10 codes entered during the encounter were determined with PPV adjusted for oversampled data. Metrics were also determined by disposition subgroup: discharged home or admitted. FINDINGS There were 541 encounters annotated as opioid misuse and 617 with no opioid misuse. The majority were males (54.4%), average age was 47 years and 68.5% were discharged directly from the ED. The sensitivity of ICD-10 codes was 0.56 (95% confidence interval [CI], 0.51-0.60), specificity 0.99 (95% CI, 0.97-0.99) and adjusted PPV 0.78 (95% CI, 0.65-0.92). The sensitivity was higher for patients discharged from the ED (0.65; 95% CI, 0.60-0.69) than those admitted (0.31; 95% CI, 0.24-0.39). CONCLUSIONS International Classification of Disease-10 codes appear to have low sensitivity but high specificity and positive predictive value in detecting opioid misuse among emergency department patients in the United States.
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Affiliation(s)
- Neeraj Chhabra
- Division of Medical Toxicology, Department of Emergency Medicine, Cook County Health, Chicago, Illinois, USA
- Department of Emergency Medicine, Rush Medical College, Rush University, Chicago, Illinois, USA
| | - Dale Smith
- Addiction Data Science Laboratory, Department of Psychiatry and Behavioral Science, Rush University Medical Center, Chicago, Illinois, USA
- Institute for Juvenile Research, Department of Psychiatry, University of Illinois Chicago, Chicago, Illinois, USA
| | - Paul Pachwicewicz
- Addiction Data Science Laboratory, Department of Psychiatry and Behavioral Science, Rush University Medical Center, Chicago, Illinois, USA
| | - Yiqi Lin
- Rush Medical College, Rush University, Chicago, Illinois, USA
| | - Sameer Bhalla
- Department of Medicine, Rush Medical College, Rush University, Chicago, Illinois, USA
| | | | - Mennefer Blue
- Addiction Data Science Laboratory, Department of Psychiatry and Behavioral Science, Rush University Medical Center, Chicago, Illinois, USA
| | - Power Lee
- Rush Medical College, Rush University, Chicago, Illinois, USA
| | - Brihat Sharma
- Addiction Data Science Laboratory, Department of Psychiatry and Behavioral Science, Rush University Medical Center, Chicago, Illinois, USA
| | - Majid Afshar
- Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Niranjan S. Karnik
- Institute for Juvenile Research, Department of Psychiatry, University of Illinois Chicago, Chicago, Illinois, USA
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Tsai YT, Chuang TJ, Mudiyanselage SPK, Ku HC, Wu YL, Li CY, Ko NY. The impact of sleep disturbances on suicide risk among people living HIV: An eleven-year national cohort. J Affect Disord 2024; 346:122-132. [PMID: 37890538 DOI: 10.1016/j.jad.2023.10.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 09/22/2023] [Accepted: 10/08/2023] [Indexed: 10/29/2023]
Abstract
OBJECTIVES The suicide rate among individuals who experience sleep disturbances is five times higher than in the general population. Up to 70 % of people living with HIV (PLHIV) experience sleep disturbances. This study's purpose was to determine whether this population has higher rates of suicide compared to those without sleep disorders. Possible risk factors were also explored. METHODS A secondary analysis of nationwide data on all males and females over 15 years old with HIV living in Taiwan was conducted from January 1, 2005, to December 31, 2016. Sleep disturbances were identified through recorded diagnoses and medical treatments. Cox proportional hazard models and hazard ratios (HRs) and mediation analysis were employed to estimate the association between sleep disturbances and suicide risk during the follow-up period. RESULTS Of the 5680 PLHIV, 72 suicide events were reported. The suicide incidence rate among PLHIV suffering from sleep disturbances was 769 per 100,000 person-years. Sleep disturbances were associated with a significantly increased risk of suicide (AHR = 1.75, 95 % CI 1.02-3.02, p = 0.0429). A premium-based monthly salary of <24,000 (NT $) was also associated with an increased hazard of suicide (AHR = 4.14, 95 % CI 1.60-10.75, p = 0.0035). The pathway effect analysis using potential outcomes showed that depression did not mediate the effect of sleep disturbance on suicide. CONCLUSIONS Sleep disturbances were associated with higher suicide rates, even after adjusting for pre-existing depression. These findings suggest that paying attention to suicidal ideation among PLHIV suffering from sleep disturbances is necessary.
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Affiliation(s)
- Yi-Tseng Tsai
- Department of Nursing, An Nan Hospital, China Medical University, Tainan, Taiwan
| | - Tzu-Jung Chuang
- Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | | | - Han-Chang Ku
- Department of Nursing, Chang Gung University of Science and Technology, Chiayi, Taiwan
| | - Yi-Lin Wu
- Department of Nursing, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chung-Yi Li
- Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| | - Nai-Ying Ko
- Department of Nursing, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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Graham SS, Shifflet S, Amjad M, Claborn K. An interpretable machine learning framework for opioid overdose surveillance from emergency medical services records. PLoS One 2024; 19:e0292170. [PMID: 38289927 PMCID: PMC10826931 DOI: 10.1371/journal.pone.0292170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 09/14/2023] [Indexed: 02/01/2024] Open
Abstract
The goal of this study is to develop and validate a lightweight, interpretable machine learning (ML) classifier to identify opioid overdoses in emergency medical services (EMS) records. We conducted a comparative assessment of three feature engineering approaches designed for use with unstructured narrative data. Opioid overdose annotations were provided by two harm reduction paramedics and two supporting annotators trained to reliably match expert annotations. Candidate feature engineering techniques included term frequency-inverse document frequency (TF-IDF), a highly performant approach to concept vectorization, and a custom approach based on the count of empirically-identified keywords. Each feature set was trained using four model architectures: generalized linear model (GLM), Naïve Bayes, neural network, and Extreme Gradient Boost (XGBoost). Ensembles of trained models were also evaluated. The custom feature models were also assessed for variable importance to aid interpretation. Models trained using TF-IDF feature engineering ranged from AUROC = 0.59 (95% CI: 0.53-0.66) for the Naïve Bayes to AUROC = 0.76 (95% CI: 0.71-0.81) for the neural network. Models trained using concept vectorization features ranged from AUROC = 0.83 (95% 0.78-0.88)for the Naïve Bayes to AUROC = 0.89 (95% CI: 0.85-0.94) for the ensemble. Models trained using custom features were the most performant, with benchmarks ranging from AUROC = 0.92 (95% CI: 0.88-0.95) with the GLM to 0.93 (95% CI: 0.90-0.96) for the ensemble. The custom features model achieved positive predictive values (PPV) ranging for 80 to 100%, which represent substantial improvements over previously published EMS encounter opioid overdose classifiers. The application of this approach to county EMS data can productively inform local and targeted harm reduction initiatives.
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Affiliation(s)
- S. Scott Graham
- Department of Rhetoric & Writing, Center for Health Communication, University of Texas at Austin, Austin, TX, United States of Amedrica
- Addiction Research Institute, University of Texas at Austin, Austin, TX, United States of Amedrica
| | - Savannah Shifflet
- Addiction Research Institute, University of Texas at Austin, Austin, TX, United States of Amedrica
| | - Maaz Amjad
- Addiction Research Institute, University of Texas at Austin, Austin, TX, United States of Amedrica
| | - Kasey Claborn
- Addiction Research Institute, University of Texas at Austin, Austin, TX, United States of Amedrica
- Steve Hicks School of Social Work, University of Texas at Austin, Austin, TX, United States of Amedrica
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Poulsen MN, Freda PJ, Troiani V, Mowery DL. Developing a Framework to Infer Opioid Use Disorder Severity From Clinical Notes to Inform Natural Language Processing Methods: Characterization Study. JMIR Ment Health 2024; 11:e53366. [PMID: 38224481 PMCID: PMC10825772 DOI: 10.2196/53366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/30/2023] [Accepted: 12/02/2023] [Indexed: 01/16/2024] Open
Abstract
BACKGROUND Information regarding opioid use disorder (OUD) status and severity is important for patient care. Clinical notes provide valuable information for detecting and characterizing problematic opioid use, necessitating development of natural language processing (NLP) tools, which in turn requires reliably labeled OUD-relevant text and understanding of documentation patterns. OBJECTIVE To inform automated NLP methods, we aimed to develop and evaluate an annotation schema for characterizing OUD and its severity, and to document patterns of OUD-relevant information within clinical notes of heterogeneous patient cohorts. METHODS We developed an annotation schema to characterize OUD severity based on criteria from the Diagnostic and Statistical Manual of Mental Disorders, 5th edition. In total, 2 annotators reviewed clinical notes from key encounters of 100 adult patients with varied evidence of OUD, including patients with and those without chronic pain, with and without medication treatment for OUD, and a control group. We completed annotations at the sentence level. We calculated severity scores based on annotation of note text with 18 classes aligned with criteria for OUD severity and determined positive predictive values for OUD severity. RESULTS The annotation schema contained 27 classes. We annotated 1436 sentences from 82 patients; notes of 18 patients (11 of whom were controls) contained no relevant information. Interannotator agreement was above 70% for 11 of 15 batches of reviewed notes. Severity scores for control group patients were all 0. Among noncontrol patients, the mean severity score was 5.1 (SD 3.2), indicating moderate OUD, and the positive predictive value for detecting moderate or severe OUD was 0.71. Progress notes and notes from emergency department and outpatient settings contained the most and greatest diversity of information. Substance misuse and psychiatric classes were most prevalent and highly correlated across note types with high co-occurrence across patients. CONCLUSIONS Implementation of the annotation schema demonstrated strong potential for inferring OUD severity based on key information in a small set of clinical notes and highlighting where such information is documented. These advancements will facilitate NLP tool development to improve OUD prevention, diagnosis, and treatment.
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Affiliation(s)
- Melissa N Poulsen
- Department of Population Health Sciences, Geisinger, Danville, PA, United States
| | - Philip J Freda
- Department of Computational Biomedicine, Cedars-Sinai Medical Center, West Hollywood, CA, United States
| | - Vanessa Troiani
- Department of Autism and Developmental Medicine, Geisinger, Danville, PA, United States
| | - Danielle L Mowery
- Department of Biostatistics, Epidemiology and Informatics, Institute of Biomedical Informatics, University of Pennsylvania, Philadelphia, PA, United States
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Schwartz JL, Lasser EC, Kitchen C, Gwynn KB, Pandya C, Weiner JP, Gudzune KA. Prevalence of lifestyle-related behavioral information in claims data in the U.S. Prev Med 2024; 178:107826. [PMID: 38122938 DOI: 10.1016/j.ypmed.2023.107826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 12/01/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVE Given their association with varying health risks, lifestyle-related behaviors are essential to consider in population-level disease prevention. Health insurance claims are a key source of information for population health analytics, but the availability of lifestyle information within claims data is unknown. Our goal was to assess the availability and prevalence of data items that describe lifestyle behaviors across several domains within a large U.S. claims database. METHODS We conducted a retrospective, descriptive analysis to determine the availability of the following claims-derived lifestyle domains: nutrition, eating habits, physical activity, weight status, emotional wellness, sleep, tobacco use, and substance use. To define these domains, we applied a serial review process with three physicians to identify relevant diagnosis and procedure codes within claims for each domain. We used enrollment files and medical claims from a large national U.S. health plan to identify lifestyle relevant codes filed between 2016 and 2020. We calculated the annual prevalence of each claims-derived lifestyle domain and the proportion of patients by count within each domain. RESULTS Approximately half of all members within the sample had claims information that identified at least one lifestyle domain (2016 = 41.9%; 2017 = 46.1%; 2018 = 49.6%; 2019 = 52.5%; 2020 = 50.6% of patients). Most commonly identified domains were weight status (19.9-30.7% across years), nutrition (13.3-17.8%), and tobacco use (7.9-9.8%). CONCLUSION Our study demonstrates the feasibility of using claims data to identify key lifestyle behaviors. Additional research is needed to confirm the accuracy and validity of our approach and determine its use in population-level disease prevention.
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Affiliation(s)
- Jessica L Schwartz
- Division of General Internal Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Elyse C Lasser
- Center for Population Health IT, Department of Health Policy & Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
| | - Christopher Kitchen
- Center for Population Health IT, Department of Health Policy & Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Kendrick B Gwynn
- Division of General Internal Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Johns Hopkins Community Physicians, Baltimore, MD, USA
| | - Chintan Pandya
- Center for Population Health IT, Department of Health Policy & Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Jonathan P Weiner
- Center for Population Health IT, Department of Health Policy & Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Kimberly A Gudzune
- Division of General Internal Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Population Health IT, Department of Health Policy & Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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Campbell AG, Naz S, Gharbi S, Chambers J, Denne S, Litzelman DK, Wiehe SE. The Concordance of Electronic Health Record Diagnoses and Substance use Self-Reports Among Reproductive Aged Women Enrolled in a Community-Based Addiction Reduction Program. INQUIRY : A JOURNAL OF MEDICAL CARE ORGANIZATION, PROVISION AND FINANCING 2024; 61:469580241237051. [PMID: 38528783 DOI: 10.1177/00469580241237051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
Substance use disorders among reproductive aged women are a major public health issue. There is little work investigating the validity and reliability of electronic health record (EHR) data for measuring substance use in this population. This study examined the concordance of self-reported substance use with clinical diagnoses of substance use, substance abuse and substance use disorder in EHR data. Reproductive age women enrolled in the Community-Based Addiction Reduction (CARE) program were interviewed by peer recovery coaches (PRC) at enrollment. That survey data was linked with EHR data (n = 102). Concordance between self-reported substance use and clinical diagnoses in the EHR was examined for opioids, cannabis/THC, and cocaine. Cohen's kappa, sensitivity, and specificity were calculated. The survey captured a higher number of women who use substances compared to the EHR. The concordance of self-report with EHR diagnosis varied by substance and was higher for opioids (17.6%) relative to cannabis/THC (8.8%), and cocaine (3.0%). Additionally, opioids had higher sensitivity (46.2%) and lower specificity (76.2%) relative to cannabis/THC and cocaine. Survey data collected by PRCs captured more substance use than EHRs, suggesting that EHRs underestimate substance use prevalence. The higher sensitivity and lower specificity of opioids was due to a larger number of women who had a diagnosis of opioid use in the EHR who did not self-report opioid use in the self-report survey relative to cannabis/THC and cocaine. Opioid self-report and diagnosis may be influenced by research setting, question wording, or receipt of medication for opioid use disorder.
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Affiliation(s)
| | - Saman Naz
- Indiana University School of Medicine, Indianapolis, IN, USA
| | - Sami Gharbi
- Indiana University School of Medicine, Indianapolis, IN, USA
| | - Joanna Chambers
- Indiana University School of Medicine, Indianapolis, IN, USA
- Indiana Clinical Translational Sciences Institute, Indianapolis, IN, USA
| | - Scott Denne
- Indiana University School of Medicine, Indianapolis, IN, USA
- Indiana Clinical Translational Sciences Institute, Indianapolis, IN, USA
| | - Debra K Litzelman
- Indiana University School of Medicine, Indianapolis, IN, USA
- Indiana Clinical Translational Sciences Institute, Indianapolis, IN, USA
- Regenstrief Institute, Inc., Indianapolis, IN, USA
| | - Sarah E Wiehe
- Indiana University School of Medicine, Indianapolis, IN, USA
- Indiana Clinical Translational Sciences Institute, Indianapolis, IN, USA
- Regenstrief Institute, Inc., Indianapolis, IN, USA
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Poulsen MN, Nordberg CM, Troiani V, Berrettini W, Asdell PB, Schwartz BS. Identification of opioid use disorder using electronic health records: Beyond diagnostic codes. Drug Alcohol Depend 2023; 251:110950. [PMID: 37716289 PMCID: PMC10620734 DOI: 10.1016/j.drugalcdep.2023.110950] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/24/2023] [Accepted: 08/29/2023] [Indexed: 09/18/2023]
Abstract
BACKGROUND We used structured and unstructured electronic health record (EHR) data to develop and validate an approach to identify moderate/severe opioid use disorder (OUD) that includes individuals without prescription opioid use or chronic pain, an underrepresented population. METHODS Using electronic diagnosis grouper text from EHRs of ~1 million patients (2012-2020), we created indicators of OUD-with "tiers" indicating OUD likelihood-combined with OUD medication (MOUD) orders. We developed six sub-algorithms with varying criteria (multiple vs single MOUD orders, multiple vs single tier 1 indicators, tier 2 indicators, tier 3 and 4 indicators). Positive predictive values (PPVs) were calculated based on chart review to determine OUD status and severity. We compared demographic and clinical characteristics of cases identified by the sub-algorithms. RESULTS In total, 14,852 patients met criteria for one of the sub-algorithms. Five sub-algorithms had PPVs ≥0.90 for any severity OUD; four had PPVs ≥0.90 for moderate/severe OUD. Demographic and clinical characteristics differed substantially between groups. Of identified OUD cases, 31.3% had no past opioid analgesic orders, 79.7% lacked evidence of chronic prescription opioid use, and 43.5% lacked a chronic pain diagnosis. DISCUSSION Incorporating unstructured data with MOUD orders yielded an approach that adequately identified moderate/severe OUD, identified unique demographic and clinical sub-groups, and included individuals without prescription opioid use or chronic pain, whose OUD may stem from illicit opioids. Findings show that incorporating unstructured data strengthens EHR algorithms for identifying OUD and suggests approaches limited to populations with prescription opioid use or chronic pain exclude many individuals with OUD.
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Affiliation(s)
- Melissa N Poulsen
- Department of Population Health Sciences, Geisinger, Danville, PA, USA.
| | - Cara M Nordberg
- Department of Population Health Sciences, Geisinger, Danville, PA, USA.
| | - Vanessa Troiani
- Department of Autism and Developmental Medicine, Geisinger, Lewisburg, PA, USA.
| | - Wade Berrettini
- Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
| | - Patrick B Asdell
- Department of Family Medicine, Summa Health, Barberton, OH, USA.
| | - Brian S Schwartz
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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11
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Guralnik E. Utilization of Electronic Health Records for Chronic Disease Surveillance: A Systematic Literature Review. Cureus 2023; 15:e37975. [PMID: 37223147 PMCID: PMC10202040 DOI: 10.7759/cureus.37975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/22/2023] [Indexed: 05/25/2023] Open
Abstract
This study reviews the current utilization of electronic health records (EHRs) for chronic disease surveillance, discusses approaches that are used in obtaining EHR-derived disease prevalence estimates, and identifies health indicators that have been studied using EHR-based surveillance methods. PubMed was searched for relevant keywords: (electronic health records [Title/Abstract] AND surveillance [Title/Abstract]) OR (electronic medical records [Title/Abstract] AND surveillance [Title/Abstract]). Articles were assessed based on detailed inclusion and exclusion criteria and organized by common themes, as per the PRISMA review protocol. The study period was limited to 2015-2021 due to the wider adoption of EHR in the U.S. only since 2015. The review included only US studies and only those that focused on chronic disease surveillance. 17 studies were included in the review. The most common approaches the review identified focused on validating EHR-derived estimates against those from traditional national surveys. The most studied conditions were diabetes, obesity, and hypertension. The majority of reviewed studies demonstrated comparable prevalence estimates with traditional population health surveillance surveys. The most common approach for the estimation of chronic disease conditions was to use small-area estimation by geographic patterns, neighborhoods, or census tracts. The use of EHR-based surveillance systems for public health purposes is feasible, and the population health estimates appear comparable to those obtained through traditional surveillance surveys. The application of EHRs for public health surveillance appears promising and could offer a real-time alternative to traditional surveillance methods. A timely assessment of population health at local and regional levels would ensure a more targeted allocation of public health and healthcare resources as well as more effective intervention and prevention initiatives.
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Affiliation(s)
- Elina Guralnik
- Health Administration and Policy, Health Informatics, George Mason University, Fairfax, USA
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12
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McLaughlin A, Burns R, Ryan M, Abbasi W, Harvey L, Hicks J, Sinha P, Assoumou SA. Comparing COVID-19-related Morbidity and Mortality Between Patients With and Without Substance Use Disorders: A Retrospective Cohort Study. Subst Abuse 2023; 17:11782218231160014. [PMID: 36968974 PMCID: PMC10034287 DOI: 10.1177/11782218231160014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 02/09/2023] [Indexed: 03/24/2023]
Abstract
Objectives People with substance use disorders (SUD) are suggested to have higher risk of hospitalization, intubation, or death from coronavirus disease 2019 (COVID-19), although data are mixed. Little is known about other COVID-19-related complications in this group. We compared morbidity and mortality among individuals with and without SUD who were admitted to an urban safety net hospital with COVID-19 early in the pandemic, contemporaneous to other published studies on this subject. Methods We performed a retrospective study of patients ⩾18 years old admitted with COVID-19 from March 16th to April 8th, 2020. SUD included alcohol, opioid, cocaine, amphetamine, and benzodiazepine use disorders and was identified using diagnostic codes, free text clinical documentation, and urine drug screens. The primary outcome was inpatient mortality. Secondary outcomes included clinical complications (eg, secondary infections, venous thromboembolism) and resource utilization (eg, mechanical ventilation, length of stay). We used multivariable regression to assess the relationship between SUD and mortality. Results Of 409 patients, the mean age was 56 years and 13.7% had SUD. Those with SUD were more likely to be male, have experienced homelessness, have pulmonary disease or hepatitis C, or use tobacco or cannabis. After multivariable analysis, SUD was not associated with mortality (aOR 1.03; 95% CI, 0.31-3.10). Secondary outcomes were also similar between groups. Conclusions Our findings suggest that persons with and without SUD have similar COVID-19-related outcomes. Previously reported increased COVID-19 complications may be from medical comorbidities.
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Affiliation(s)
- Angela McLaughlin
- Section of Infectious Diseases,
Department of Medicine, Boston Medical Center, Boston, MA, USA
- Section of Infectious Diseases,
Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Rebecca Burns
- Internal Medicine Residency Program,
Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Morgan Ryan
- Department of Biostatistics, Boston
University School of Public Health, Boston, MA, USA
| | - Wafaa Abbasi
- Boston University School of Medicine,
Boston, MA, USA
| | - Leah Harvey
- Section of Infectious Diseases,
Department of Medicine, Boston Medical Center, Boston, MA, USA
- Section of Infectious Diseases,
Department of Medicine, Boston University School of Medicine, Boston, MA, USA
- Grayken Center for Addiction,
Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Jacqueline Hicks
- Department of Biostatistics, Boston
University School of Public Health, Boston, MA, USA
| | - Pranay Sinha
- Section of Infectious Diseases,
Department of Medicine, Boston Medical Center, Boston, MA, USA
- Section of Infectious Diseases,
Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Sabrina A Assoumou
- Section of Infectious Diseases,
Department of Medicine, Boston Medical Center, Boston, MA, USA
- Section of Infectious Diseases,
Department of Medicine, Boston University School of Medicine, Boston, MA, USA
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13
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Shapira B, Berkovitz R, Haklai Z, Goldberger N, Lipshitz I, Rosca P. Trends and correlated outcomes in population-level prescription opioid and transdermal fentanyl use in Israel. Isr J Health Policy Res 2023; 12:9. [PMID: 36941731 PMCID: PMC10026220 DOI: 10.1186/s13584-023-00558-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 03/11/2023] [Indexed: 03/23/2023] Open
Abstract
BACKGROUND In the last twenty years, there was a documented increase in prescription opioid procurement in Israel. However, there is still little evidence of the association between opioid procurement rates, health service utilisation in secondary care, and enrollment rates to substance use disorder treatment programmes. In this study, we show trends in the reports of opioid-related hospitalisations, emergency department visits, enrollment to community-based outpatient treatment for Prescription Opioid Use Disorder and opioid-related mortality rates. Additionally, we examine potential correlations between these health service utilisation rates and prescription opioid procurement rates at the population level, with a focus on transdermal fentanyl. METHODS A longitudinal study at the population level. We used seven-year data on indicators of opioid-related morbidity, prescription opioid procurement data for 2015-2021, and six-year opioid-related mortality data for 2015-2020. We measure the correlation between procurement rates of prescription opioids in Oral Morphine Equivalent per capita, and aggregated rates obtained from hospital administrative data for hospitalisations, emergency department visits, and patient enrolment in specialised prescription opioid use disorder outpatient treatment in the community setting. RESULTS Between 2015 and 2021, procurement rates in primary care per capita for all prescription opioids increased by 85%, while rates of transdermal fentanyl procurement increased by 162%. We found a significant positive correlation at the population level, between annual opioid procurement rates, and rates per population of opioid-related visits to emergency departments (r = 0.96, p value < 0.01, [CI 0.74-0.99]), as well as a positive correlation with the rates per population of patient enrolment in specialised prescription opioid use disorder outpatient treatment (r = 0.93, p value = 0.02, [CI 0.58-0.99]). Opioid-related mortality peaked in 2019 at 0.31 deaths per 100,000 but decreased to 0.20 deaths per 100,000 in 2020. CONCLUSION Data shows that all-opioid and transdermal fentanyl procurement has increased yearly between 2015 and 2021. This increase is positively correlated with a growing demand for community-based Prescription Opioid Use Disorder outpatient treatment. Efforts to reduce opioid-related morbidity may require effective approaches toward appropriate prescribing, monitoring, and further increasing access to prescription opioid outpatient treatment.
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Affiliation(s)
- Barak Shapira
- Division of Enforcement and Inspection, Ministry of Health, Jerusalem, Israel.
| | - Ronny Berkovitz
- Division of Enforcement and Inspection, Ministry of Health, Jerusalem, Israel
| | - Ziona Haklai
- Health Information Division, Ministry of Health, Jerusalem, Israel
| | | | - Irena Lipshitz
- Health Information Division, Ministry of Health, Jerusalem, Israel
| | - Paola Rosca
- Department for the Treatment of Substance Abuse, Ministry of Health, Jerusalem, Israel
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14
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Chen PH, Patel R, Miller SD, Jasper R, Chander G, Hutfless S. Substance Use Among Patients With Incident Crohn's Disease in the United States, 2010 to 2019: A Medicaid Observational Study. GASTRO HEP ADVANCES 2023; 2:747-754. [PMID: 37712010 PMCID: PMC10500958 DOI: 10.1016/j.gastha.2023.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
BACKGROUND AND AIMS Substance use among persons with Crohn's disease (CD) is associated with symptomatic exacerbation and poorer quality of life. However, data on the prevalence of substance use among individuals with CD are limited. Therefore, our study aimed to estimate the burden of alcohol and drug use among individuals with incident CD in the United States. We also assessed the associations between CD-related interventions and substance use after CD diagnosis. METHODS Our retrospective cohort study of the national Medicaid databases from 2010 to 2019 identified participants with newly diagnosed CD and defined substance use (ie, alcohol, opioids, cocaine, amphetamine, and cannabis) using diagnosis codes. Multivariable logistic regression models assessed the associations between CD-related interventions and substance use after CD diagnosis. RESULTS Overall, 16.3% of Medicaid enrollees with incident CD had substance ever-use, most commonly alcohol or opioids (each 8.0%). Any substance use saw an absolute decrease of 3.8% after CD diagnosis, but changes were less than 1% in either direction for each substance. CD-related hospitalization was associated with increased alcohol or opioid use post-CD diagnosis. Surgery was associated with lower use post-CD of opioids but not alcohol. CD medications (except steroids) were generally associated with decreased post-CD alcohol or opioid use. CONCLUSION Among Medicaid enrollees with incident CD, alcohol and opioid use were more frequent than previously published estimates for the general US population (6% and 4%, respectively, in 2019). Consequently, medical communities must be more aware of substance use by patients with CD to provide quality patient-centered care.
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Affiliation(s)
- Po-Hung Chen
- Division of Gastroenterology & Hepatology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Reeha Patel
- Krieger School of Arts and Sciences, Johns Hopkins University, Baltimore, Maryland
| | - Steven D. Miller
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Ryan Jasper
- Whiting School of Engineering, Johns Hopkins University, Baltimore, Maryland
| | - Geetanjali Chander
- Division of General Internal Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, Washington
| | - Susan Hutfless
- Division of Gastroenterology & Hepatology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
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15
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Cook RR, Foot C, Arah OA, Humphreys K, Rudolph KE, Luo SX, Tsui JI, Levander XA, Korthuis PT. Estimating the impact of stimulant use on initiation of buprenorphine and extended-release naltrexone in two clinical trials and real-world populations. Addict Sci Clin Pract 2023; 18:11. [PMID: 36788634 PMCID: PMC9930351 DOI: 10.1186/s13722-023-00364-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 02/01/2023] [Indexed: 02/16/2023] Open
Abstract
BACKGROUND Co-use of stimulants and opioids is rapidly increasing. Randomized clinical trials (RCTs) have established the efficacy of medications for opioid use disorder (MOUD), but stimulant use may decrease the likelihood of initiating MOUD treatment. Furthermore, trial participants may not represent "real-world" populations who would benefit from treatment. METHODS We conducted a two-stage analysis. First, associations between stimulant use (time-varying urine drug screens for cocaine, methamphetamine, or amphetamines) and initiation of buprenorphine or extended-release naltrexone (XR-NTX) were estimated across two RCTs (CTN-0051 X:BOT and CTN-0067 CHOICES) using adjusted Cox regression models. Second, results were generalized to three target populations who would benefit from MOUD: Housed adults identifying the need for OUD treatment, as characterized by the National Survey on Drug Use and Health (NSDUH); adults entering OUD treatment, as characterized by Treatment Episodes Dataset (TEDS); and adults living in rural regions of the U.S. with high rates of injection drug use, as characterized by the Rural Opioids Initiative (ROI). Generalizability analyses adjusted for differences in demographic characteristics, substance use, housing status, and depression between RCT and target populations using inverse probability of selection weighting. RESULTS Analyses included 673 clinical trial participants, 139 NSDUH respondents (weighted to represent 661,650 people), 71,751 TEDS treatment episodes, and 1,933 ROI participants. The majority were aged 30-49 years, male, and non-Hispanic White. In RCTs, stimulant use reduced the likelihood of MOUD initiation by 32% (adjusted HR [aHR] = 0.68, 95% CI 0.49-0.94, p = 0.019). Stimulant use associations were slightly attenuated and non-significant among housed adults needing treatment (25% reduction, aHR = 0.75, 0.48-1.18, p = 0.215) and adults entering OUD treatment (28% reduction, aHR = 0.72, 0.51-1.01, p = 0.061). The association was more pronounced, but still non-significant among rural people injecting drugs (39% reduction, aHR = 0.61, 0.35-1.06, p = 0.081). Stimulant use had a larger negative impact on XR-NTX initiation compared to buprenorphine, especially in the rural population (76% reduction, aHR = 0.24, 0.08-0.69, p = 0.008). CONCLUSIONS Stimulant use is a barrier to buprenorphine or XR-NTX initiation in clinical trials and real-world populations that would benefit from OUD treatment. Interventions to address stimulant use among patients with OUD are urgently needed, especially among rural people injecting drugs, who already suffer from limited access to MOUD.
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Affiliation(s)
- R R Cook
- Section of Addiction Medicine, Department of Medicine, Oregon Health & Science University, Sam Jackson Hall, Suite 3370, 3245 SW Pavilion Loop, Portland, OR, 97239, USA.
| | - C Foot
- Section of Addiction Medicine, Department of Medicine, Oregon Health & Science University, Sam Jackson Hall, Suite 3370, 3245 SW Pavilion Loop, Portland, OR, 97239, USA
| | - O A Arah
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles (UCLA), Los Angeles, CA, USA
- Division of Physical Sciences, Department of Statistics, UCLA College, Los Angeles, CA, USA
- Research Unit for Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark
| | - K Humphreys
- Center for Innovation to Implementation, VA Palo Alto Health Care System, Palo Alto, CA, USA
- Department of Psychiatry and Behavioral Sciences, Stanford University, Palo Alto, CA, USA
| | - K E Rudolph
- Department of Epidemiology, School of Public Health, Columbia University, New York, NY, USA
| | - S X Luo
- Division on Substance Use Disorders, Department of Psychiatry, Columbia University, New York, USA
| | - J I Tsui
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - X A Levander
- Section of Addiction Medicine, Department of Medicine, Oregon Health & Science University, Sam Jackson Hall, Suite 3370, 3245 SW Pavilion Loop, Portland, OR, 97239, USA
| | - P T Korthuis
- Section of Addiction Medicine, Department of Medicine, Oregon Health & Science University, Sam Jackson Hall, Suite 3370, 3245 SW Pavilion Loop, Portland, OR, 97239, USA
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16
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Vivas-Valencia C, Kong N, Adams N, Griffin PM. Opioid-Related Treatment Disparities Among Medicaid Enrollees in Indiana. Health Equity 2023; 7:76-79. [PMID: 36876233 PMCID: PMC9982140 DOI: 10.1089/heq.2021.0154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/15/2022] [Indexed: 02/04/2023] Open
Abstract
Introduction Health care disparities based on race/ethnicity and sex can be found in a variety of settings. Our aim is to determine if there are disparities in treatment provided to Indiana Medicaid enrollees who have medically documented opioid use. Study Data and Methods We used Medicaid reimbursement claims data to extract patients who were diagnosed with opioid use disorder (OUD) or had other medical event related to opioid use between January 2018 and March 2019. We used a two-proportion Z-test to verify the difference in the proportion of treatment provided between population subgroups. The study was approved by the Purdue University Institutional Review Board (2019-118). Study Results Over the study period, there were 52,994 Indiana Medicaid enrollees diagnosed with OUD or documentation of another opioid related event. Only 5.41% of them received at least one type of treatment service (detoxification, psychosocial, medication assisted treatment, or comprehensive). Discussion Although Medicaid began covering treatment services for enrollees with an OUD in Indiana at the start of 2018, very few received evidence-based services. Men and White enrollees with an OUD were in general more likely to receive services compared to women and non-White enrollees.
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Affiliation(s)
| | - Nan Kong
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana, USA
| | - Nicole Adams
- School of Nursing, Purdue University, West Lafayette, Indiana, USA
| | - Paul M Griffin
- Department of Industrial and Manufacturing Engineering, Pennsylvania State University, University Park, USA.,Consortium for Substance Use and Addiction, Social Science Research Institute, Pennsylvania State University, University Park, USA
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17
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Toigo S, McFaull SR, Thompson W. Hospital discharges for substance-related injuries before and during the COVID-19 pandemic: a descriptive surveillance study using administrative data. CMAJ Open 2023; 11:E54-E61. [PMID: 36693656 PMCID: PMC9876582 DOI: 10.9778/cmajo.20220164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND The COVID-19 pandemic and associated behavioural changes have contributed to an increase in substance-related hospital discharges, and has altered the injury epidemiology landscape in Canada. We sought to evaluate hospital discharges for substance-related injuries during the pandemic compared with prepandemic and to identify subpopulations that have been greatly affected by substance-related injuries during the first year of the pandemic. METHODS We compared data on hospital discharges in Canada from before the pandemic (March 2019-February 2020) with discharges during the first year of the pandemic (March 2020-February 2021) using the Discharge Abstract Database. We identified discharges for substance-related injuries using codes from the International Statistical Classification of Diseases and Related Health Problems, 10th Revision. We calculated percent changes, age-standardized rates and age-specific rates of discharges for substance-related injuries. RESULTS Hospital discharges for substance-related injuries increased by 7.1% during the first year of the pandemic. Discharges for intentional injuries decreased by 6.3%, whereas unintentional substance-related injuries increased by 15.1% during this period. Male patients accounted for 95.6% of the increase in hospital discharges for substance-related injuries during the first year of the pandemic. We observed a percent increase among discharges for injuries related to alcohol, opioid, cannabinoid, hallucinogen, tobacco, volatile solvents, other psychoactive substances and polysubstance use. INTERPRETATION We observed an increase in hospital discharges for substance-related injuries during the first year of the COVID-19 pandemic, compared with the same time period before the pandemic. This work will provide useful insight into the ongoing management of the COVID-19 pandemic, as well as future policy and health care planning related to substance use in Canada.
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18
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Nickel NC, Enns JE, Freier A, McCulloch SC, Chartier M, Casidsid HJM, Balogun OD, Mulhall D, Dragan R, Sarkar J, Bolton J, Konrad G, Phillips-Beck W, Sanguins J, Shimmin C, McDonald N, Mignone J, Hinds A. Characterising methamphetamine use to inform health and social policies in Manitoba, Canada: a protocol for a retrospective cohort study using linked administrative data. BMJ Open 2022; 12:e062127. [PMID: 36261234 PMCID: PMC9582321 DOI: 10.1136/bmjopen-2022-062127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION Rising use of methamphetamine is causing significant public health concern in Canada. The biological and behavioural effects of methamphetamine range from wakefulness, vigour and euphoria to adverse physical health outcomes like myocardial infarction, haemorrhagic stroke, arrhythmia and seizure. It can also cause severe psychological complications such as psychosis. National survey data point to increasing rates of methamphetamine use, as well as increasing ease of access and serious methamphetamine-related harms. There is an urgent need for evidence to address knowledge gaps, provide direction to harm reduction and treatment efforts and inform health and social policies for people using methamphetamine. This protocol describes a study that aims to address this need for evidence. METHODS The study will use linked, whole population, de-identified administrative data from the Manitoba Population Research Data Repository. The cohort will include individuals in the city of Winnipeg, Manitoba, who came into contact with the health system for reasons related to methamphetamine use from 2013 to 2021 and a comparison group matched on age, sex and geography. We will describe the cohort's sociodemographic characteristics, calculate incidence and prevalence of mental disorders associated with methamphetamine use and examine rates of health and social service use. We will evaluate the use of olanzapine pharmacotherapy in reducing adverse emergency department outcomes. In partnership with Indigenous co-investigators, outcomes will be stratified by First Nations and Métis identity. ETHICS AND DISSEMINATION The study was approved by the University of Manitoba Health Research Ethics Board, and access datasets have been granted by all data providers. We also received approval from the First Nations Health and Social Secretariat of Manitoba's Health Information Research Governance Committee and the Manitoba Métis Federation. Dissemination will be guided by an 'Evidence 2 Action' group of public rightsholders, service providers and knowledge users who will ensure that the analyses address the critical issues.
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Affiliation(s)
- Nathan C Nickel
- Department of Community Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- Manitoba Inuit Association, Winnipeg, Manitoba, Canada
| | - Jennifer E Enns
- Manitoba Centre for Health Policy, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Amy Freier
- Manitoba Centre for Health Policy, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Scott C McCulloch
- Manitoba Centre for Health Policy, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Mariette Chartier
- Manitoba Centre for Health Policy, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Hera J M Casidsid
- Manitoba Centre for Health Policy, University of Manitoba, Winnipeg, Manitoba, Canada
| | | | - Drew Mulhall
- Department of Orthopedic Surgery, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Roxana Dragan
- Manitoba Centre for Health Policy, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Joykrishna Sarkar
- Manitoba Centre for Health Policy, University of Manitoba, Winnipeg, Manitoba, Canada
| | - James Bolton
- Department of Psychiatry, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Geoffrey Konrad
- Department of Psychiatry, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Wanda Phillips-Beck
- First Nations Health and Social Secretariat of Manitoba, Winnipeg, Manitoba, Canada
| | | | - Carolyn Shimmin
- George and Fay Yee Centre for Healthcare Innovation, Winnipeg, Manitoba, Canada
| | - Neil McDonald
- Winnipeg Fire Paramedic Service, Winnipeg, Manitoba, Canada
| | - Javier Mignone
- Department of Community Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Aynslie Hinds
- Department of Community Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
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Waters K, Handa L, Caballero B, Telahun A, Bann M. Substance Use Disorder as a Predictor of Skilled Nursing Facility Referral Failure. J Gen Intern Med 2022; 37:3506-3508. [PMID: 35419745 PMCID: PMC9550892 DOI: 10.1007/s11606-022-07534-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 03/29/2022] [Indexed: 11/30/2022]
Affiliation(s)
| | - Laura Handa
- Department of Quality Improvement-Harborview Medical Center, Seattle, WA, USA
| | - Bianca Caballero
- Department of Care Management-Harborview Medical Center, Seattle, WA, USA
| | - Azmera Telahun
- Department of Care Management-Harborview Medical Center, Seattle, WA, USA
| | - Maralyssa Bann
- Department of Medicine, Division of GIM/Hospital Medicine, Harborview Medical Center-University of Washington, 325 9th Avenue Box 359780, Seattle, WA, 98104, USA.
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20
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Methadone treatment and patient-directed hospital discharges among patients with opioid use disorder: Observations from general medicine services at an urban, safety-net hospital. DRUG AND ALCOHOL DEPENDENCE REPORTS 2022; 3:100066. [PMID: 36845982 PMCID: PMC9949313 DOI: 10.1016/j.dadr.2022.100066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/13/2022] [Accepted: 05/11/2022] [Indexed: 11/22/2022]
Abstract
Introduction People with opioid use disorder (OUD) have high rates of discharge against medical advice from the hospital. Interventions for addressing these patient-directed discharges (PDDs) are lacking. We sought to explore the impact of methadone treatment for OUD on PDD. Methods Using electronic record and billing data from an urban safety-net hospital, we retrospectively examined the first hospitalization on a general medicine service for adults with OUD from January 2016 through June 2018. Associations with PDD compared to planned discharge were examined using multivariable logistic regression. Administration patterns of maintenance therapy versus new in-hospital initiation of methadone were examined using bivariate tests. Results During the study time period, 1,195 patients with OUD were hospitalized. 60.6% of patients received medication for OUD, of which 92.8% was methadone. Patients who received no treatment for OUD had a 19.1% PDD rate while patients initiated on methadone in-hospital had a 20.5% PDD rate and patients on maintenance methadone during the hospitalization had a 8.6% PDD rate. In multivariable logistic regression, methadone maintenance was associated with lower odds of PDD compared to no treatment (aOR 0.53, 95% CI 0.34-0.81), while methadone initiation was not (aOR 0.89, 95% CI 0.56-1.39). About 60% of patients initiated on methadone received 30 mg or less per day. Conclusions In this study sample, maintenance methadone was associated with nearly a 50% reduction in the odds of PDD. More research is needed to assess the impact of higher hospital methadone initiation dosing on PDD and if there is an optimal protective dose.
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Coughlin LN, Zhang L, Bohnert ASB, Maust DT, Goldstick J, Lin LA. Patient characteristics and treatment utilization in fatal stimulant-involved overdoses in the United States Veterans Health Administration. Addiction 2022; 117:998-1008. [PMID: 34648209 DOI: 10.1111/add.15714] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 09/19/2021] [Indexed: 01/30/2023]
Abstract
BACKGROUND AND AIMS This study aimed to (1) describe trends in stimulant-alone and stimulant and other substance use overdose deaths from 2012 to 2018 and (2) measure patient and service use characteristics across stimulant-related overdose death profiles. DESIGN Retrospective cohort study of patients who died from stimulant-involved overdose between annual years 2012 and 2018. SETTING United States Veterans Health Administration (VHA). A total of 3631 patients died from stimulant-involved overdose, as identified through the National Death Index. MEASUREMENTS Stimulant-involved overdose deaths were categorized by stimulant type (cocaine or methamphetamine/other) and other substance co-involvement. Cause of death data were linked to patient characteristics, including demographic and treatment use preceding overdose from VHA administrative data. We examined trends over time and compared treatment use factors between the following mutually exclusive overdose profiles: cocaine alone, methamphetamine alone, cocaine + opioid, methamphetamine + opioid, any stimulant + other substance and cocaine + methamphetamine. FINDINGS The rate of overdose death was 3.06 times higher in 2018 than 2012, with increases across all toxicology profiles. Compared with cocaine-involved overdoses, methamphetamine-involved overdoses were less likely in people who were older [adjusted odds ratio (aOR) = 0.22, 95% confidence interval (CI) = 0.06-0.87 aged 65+ versus 18-29] and more likely among those who lived in rural areas (aOR = 2.73, 95% CI = 1.43-5.23). People who died from stimulant + opioid overdoses had lower odds of a stimulant use disorder diagnosis compared with stimulant alone deaths (cocaine: aOR = 0.55, 95% CI = 0.41-0.75, methamphetamine: aOR = 0.44, 95% CI = 0.29-0.68). CONCLUSIONS The rate of deaths among US Veterans from stimulant-related overdose was three times higher in 2018 than 2012. Key differences in characteristics of patients across overdose toxicology profiles, such as geographic location and health-care use, point to distinct treatment needs based on stimulant use type.
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Affiliation(s)
- Lara N Coughlin
- Addiction Center, Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA.,University of Michigan Injury Prevention Center, Ann Arbor, MI, USA
| | - Lan Zhang
- Department of Veteran Affairs Healthcare System, VA Center for Clinical Management Research (CCMR), Ann Arbor, MI, USA
| | - Amy S B Bohnert
- Department of Veteran Affairs Healthcare System, VA Center for Clinical Management Research (CCMR), Ann Arbor, MI, USA.,Department of Anesthesiology, University of Michigan, Ann Arbor, MI, USA
| | - Donovan T Maust
- Department of Veteran Affairs Healthcare System, VA Center for Clinical Management Research (CCMR), Ann Arbor, MI, USA.,University of Michigan Injury Prevention Center, Ann Arbor, MI, USA.,Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Jason Goldstick
- University of Michigan Injury Prevention Center, Ann Arbor, MI, USA
| | - Lewei Allison Lin
- Addiction Center, Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA.,Department of Veteran Affairs Healthcare System, VA Center for Clinical Management Research (CCMR), Ann Arbor, MI, USA.,University of Michigan Injury Prevention Center, Ann Arbor, MI, USA
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22
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Shastry S, Counts C, Shegog E, Loo G, Cowan E. Emergency Department Utilization Patterns in Patients with Opioid-Related Emergency Department Visits. Subst Use Misuse 2022; 57:995-998. [PMID: 35345977 PMCID: PMC9227955 DOI: 10.1080/10826084.2022.2046098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Opioid-related Emergency Department (ED) visits have surged over the past decade. There is limited data on ED utilization patterns of patients with opioid use disorder (OUD). An improved understanding of utilization may underscore missed opportunities for screening, intervention and referral. This was a retrospective 2:1 matched case-control study conducted at a single urban ED. Cases were patients with an opioid-related index ED visit from June 1, 2017 to May 31, 2018. Controls were patients with a non-opioid related index ED visit from June 1, 2018 to May 31, 2019. The primary outcome was the association between the number of ED visits in the 24-month period surrounding the index visit (12 months prior and 12 months following) and having an opioid-related index ED visit. There were a total of 224 cases. One or more visits preceding (OR: 1.63, 95% CI: 1.17, 2.26) and following the index visit (OR: 2.69, 95% CI: 1.91, 3.78) was significantly associated with case status. Following adjustment, a higher number of visits preceding (aOR: 1.24, 95% CI: 1.08, 1.43) and following the index visit (aOR: 1.39, 95% CI: 1.23, 1.57) remained significantly associated with case status. Patients with an opioid-related index ED visit had significantly higher rates of ED utilization 12 months before and after the index visit when compared to a matched control population. These findings suggest that there are significant opportunities for ED intervention and referral to treatment both prior to and following an opioid-related ED visit in this patient population.
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Affiliation(s)
- Siri Shastry
- Department of Emergency Medicine, Icahn School of Medicine at Mount Sinai, Mount Sinai Hospital, New York City, New York, USA
| | - Christopher Counts
- Department of Emergency Medicine, Icahn School of Medicine at Mount Sinai, Mount Sinai Hospital, New York City, New York, USA
| | - Evan Shegog
- McGovern Medical School, Houston, Texas, USA
| | - George Loo
- Department of Emergency Medicine, Icahn School of Medicine at Mount Sinai, Mount Sinai Hospital, New York City, New York, USA.,Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Ethan Cowan
- Department of Emergency Medicine, Icahn School of Medicine at Mount Sinai, Mount Sinai Hospital, New York City, New York, USA
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Bushling C, Walton MT, Conner KL, Liu G, Hoven A, Joseph J, Taylor A. Syringe services programs in the Bluegrass: Evidence of population health benefits using Kentucky Medicaid data. J Rural Health 2021; 38:620-629. [PMID: 34541715 DOI: 10.1111/jrh.12623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
PURPOSE To evaluate whether Kentucky counties that established a new syringe services program realized a significant decline in the incidence rate of a set of infectious disease diagnoses commonly transmitted via injection drug use. METHODS Longitudinal count models of within-county rates of newly diagnosed infections among populations at risk were estimated using Medicaid claims/encounters data. Generalized estimating equation models were used to report incident rate ratios of 6 diagnoses: (1) HIV; (2) hepatitis C; (3) hepatitis B; (4) osteomyelitis; (5) endocarditis; and (6) skin/soft tissue infection. To investigate whether a delay in effect was present, separate models were fit to estimate the effects of establishing a syringe services program: at its opening date, and again at 1, 3, and 6 months postopening date. FINDINGS Taken together, the aggregated within-county incidence rate of these 6 diagnoses was significantly lower following the implementation of a syringe services program (P < .05). Our models estimated that counties which opted to open a syringe services program realized an approximate month-over-month decline in new diagnoses of 0.5% among the population at risk. CONCLUSIONS These results lend further support to previous conclusions made in the public health literature regarding the efficacy of syringe services programs. Specifically, declines in incidence rates were observable beginning at 1 month post syringe services program opening. These results are particularly notable due to the typical setting in which these syringe services programs operated-rural communities of fewer than 40,000 residents.
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Affiliation(s)
- Cameron Bushling
- Kentucky Cabinet for Health and Family Services, Office of Health Data and Analytics, Division of Analytics, Frankfort, Kentucky, USA.,University of Kentucky, Lexington, Kentucky, USA
| | - Matthew T Walton
- Kentucky Cabinet for Health and Family Services, Office of Health Data and Analytics, Division of Analytics, Frankfort, Kentucky, USA.,University of Kentucky, Lexington, Kentucky, USA
| | - Kailyn L Conner
- Kentucky Cabinet for Health and Family Services, Office of Health Data and Analytics, Division of Analytics, Frankfort, Kentucky, USA.,University of Kentucky, Lexington, Kentucky, USA.,Kentucky Cabinet for Health and Family Services, Department for Medicaid Services, Frankfort, Kentucky, USA
| | - Gilbert Liu
- Partners for Kids, Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Ardis Hoven
- Kentucky Cabinet for Health and Family Services, Department for Public Health, Frankfort, Kentucky, USA
| | - Jessin Joseph
- Kentucky Cabinet for Health and Family Services, Department for Medicaid Services, Frankfort, Kentucky, USA
| | - Angela Taylor
- Kentucky Cabinet for Health and Family Services, Office of Health Data and Analytics, Division of Analytics, Frankfort, Kentucky, USA.,University of Kentucky, Lexington, Kentucky, USA
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Shearer RD, Shippee ND, Winkelman TNA. Characterizing trends in methamphetamine-related health care use when there is no ICD code for "methamphetamine use disorder". J Subst Abuse Treat 2021; 127:108369. [PMID: 34134872 PMCID: PMC8217729 DOI: 10.1016/j.jsat.2021.108369] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 03/03/2021] [Accepted: 03/11/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND AND AIMS The recent surge in methamphetamine use highlights the need for timely data on its health effects and healthcare service use impact. However, there is no ICD code for methamphetamine use. This study quantifies the positive predictive value of ICD-9-CM and ICD-10-CM psychostimulant codes for methamphetamine use. METHODS A retrospective chart review of 220 adults aged 18 and older who had an inpatient admission with a psychostimulant-associated billing diagnosis at an urban safety-net hospital. Diagnoses were categorized as either methamphetamine-related or involving another specific psychostimulant. The positive predictive value of both ICD-9-CM or ICD-10-CM psychostimulant diagnosis codes for methamphetamine use was calculated. RESULTS ICD-9-CM and ICD-10-CM psychostimulant codes had high positive predictive values of 78.2% (95% CI 70.3%-86.0%) and 85.5% (95% CI 78.8%-92.1%), respectively, for methamphetamine use. The most common non-methamphetamine psychostimulant in our cohort was khat, a cathinone-containing plant native to East Africa, accounting for psychostimulant-related diagnosis in 16 of the 220 hospitalizations. CONCLUSIONS The high predictive values of psychostimulant codes for methamphetamine use support the application of administrative data in measuring methamphetamine-related healthcare use, as well as co-morbid health conditions and treatment patterns.
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Affiliation(s)
- Riley D Shearer
- Department of Health Policy and Management, School of Public Health, University of Minnesota, 420 Delaware St. S.E., Minneapolis, MN 55455, United States of America.
| | - Nathan D Shippee
- Department of Health Policy and Management, School of Public Health, University of Minnesota, 420 Delaware St. S.E., Minneapolis, MN 55455, United States of America.
| | - Tyler N A Winkelman
- Health, Homelessness, and Criminal Justice Lab, Hennepin Healthcare Research Institute, 701 Park Ave., Suite PP7.700, Minneapolis, MN 55415, United States of America; General Internal Medicine, Department of Medicine, Hennepin Healthcare, 715 South 8th Street, Minneapolis, MN 55404, United States of America.
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