Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Ank E. Nijhawan is active.

Publication


Featured researches published by Ank E. Nijhawan.


American Journal of Public Health | 2015

The HIV care cascade before, during, and after incarceration: A systematic review and data synthesis

Princess A. Iroh; Helen G. Mayo; Ank E. Nijhawan

We conducted a systematic literature review of the data on HIV testing, engagement in care, and treatment in incarcerated persons, and estimated the care cascade in this group. We identified 2706 titles in MEDLINE, EBSCO, and Cochrane Library databases for studies indexed to January 13, 2015, and included 92 for analysis. We summarized HIV testing results by type (blinded, opt-out, voluntary); reviewed studies on HIV care engagement, treatment, and virological suppression; and synthesized these results into an HIV care cascade before, during, and after incarceration. The HIV care cascade following diagnosis increased during incarceration and declined substantially after release, often to levels lower than before incarceration. Incarceration provides an opportunity to address HIV care in hard-to-reach individuals, though new interventions are needed to improve postrelease care continuity.


The Journal of Infectious Diseases | 2015

Hospitalization Rates and Reasons Among HIV Elite Controllers and Persons With Medically Controlled HIV Infection

Trevor A. Crowell; Kelly A. Gebo; Joel N. Blankson; P. Todd Korthuis; Baligh R. Yehia; Richard Rutstein; Richard D. Moore; Victoria Sharp; Ank E. Nijhawan; W. Christopher Mathews; Lawrence H. Hanau; Roberto Corales; Robert Beil; Charurut Somboonwit; Howard Edelstein; Sara Allen; Stephen A. Berry

BACKGROUND Elite controllers spontaneously suppress human immunodeficiency virus (HIV) viremia but also demonstrate chronic inflammation that may increase risk of comorbid conditions. We compared hospitalization rates and causes among elite controllers to those of immunologically intact persons with medically controlled HIV. METHODS For adults in care at 11 sites from 2005 to 2011, person-years with CD4 T-cell counts ≥350 cells/mm(2) were categorized as medical control, elite control, low viremia, or high viremia. All-cause and diagnostic category-specific hospitalization rates were compared between groups using negative binomial regression. RESULTS We identified 149 elite controllers (0.4%) among 34 354 persons in care. Unadjusted hospitalization rates among the medical control, elite control, low-viremia, and high-viremia groups were 10.5, 23.3, 12.6, and 16.9 per 100 person-years, respectively. After adjustment for demographic and clinical factors, elite control was associated with higher rates of all-cause (adjusted incidence rate ratio, 1.77 [95% confidence interval, 1.21-2.60]), cardiovascular (3.19 [1.50-6.79]) and psychiatric (3.98 [1.54-10.28]) hospitalization than was medical control. Non-AIDS-defining infections were the most common reason for admission overall (24.1% of hospitalizations) but were rare among elite controllers (2.7%), in whom cardiovascular hospitalizations were most common (31.1%). CONCLUSIONS Elite controllers are hospitalized more frequently than persons with medically controlled HIV and cardiovascular hospitalizations are an important contributor.


JAMA | 2016

Effect of Patient navigation with or without financial incentives on viral suppression among hospitalized patients with HIV infection and substance use a randomized clinical trial

Lisa R. Metsch; Daniel J. Feaster; Lauren Gooden; Tim Matheson; Maxine L. Stitzer; Moupali Das; Mamta K. Jain; Allan Rodriguez; Wendy S. Armstrong; Gregory M. Lucas; Ank E. Nijhawan; Mari-Lynn Drainoni; Patricia Herrera; Pamela Vergara-Rodriguez; Jeffrey M. Jacobson; Michael J. Mugavero; Meg Sullivan; Eric S. Daar; Deborah McMahon; David C. Ferris; Robert Lindblad; Paul Van Veldhuisen; Neal L. Oden; Pedro C. Castellon; Susan Tross; Louise Haynes; Antoine Douaihy; James L. Sorensen; David S. Metzger; Raul N. Mandler

IMPORTANCE Substance use is a major driver of the HIV epidemic and is associated with poor HIV care outcomes. Patient navigation (care coordination with case management) and the use of financial incentives for achieving predetermined outcomes are interventions increasingly promoted to engage patients in substance use disorders treatment and HIV care, but there is little evidence for their efficacy in improving HIV-1 viral suppression rates. OBJECTIVE To assess the effect of a structured patient navigation intervention with or without financial incentives to improve HIV-1 viral suppression rates among patients with elevated HIV-1 viral loads and substance use recruited as hospital inpatients. DESIGN, SETTING, AND PARTICIPANTS From July 2012 through January 2014, 801 patients with HIV infection and substance use from 11 hospitals across the United States were randomly assigned to receive patient navigation alone (n = 266), patient navigation plus financial incentives (n = 271), or treatment as usual (n = 264). HIV-1 plasma viral load was measured at baseline and at 6 and 12 months. INTERVENTIONS Patient navigation included up to 11 sessions of care coordination with case management and motivational interviewing techniques over 6 months. Financial incentives (up to


Journal of Womens Health | 2010

Preventive Healthcare for Underserved Women: Results of a Prison Survey

Ank E. Nijhawan; Rachel Salloway; Amy Nunn; Michael Poshkus; Jennifer G. Clarke

1160) were provided for achieving targeted behaviors aimed at reducing substance use, increasing engagement in HIV care, and improving HIV outcomes. Treatment as usual was the standard practice at each hospital for linking hospitalized patients to outpatient HIV care and substance use disorders treatment. MAIN OUTCOMES AND MEASURES The primary outcome was HIV viral suppression (≤200 copies/mL) relative to viral nonsuppression or death at the 12-month follow-up. RESULTS Of 801 patients randomized, 261 (32.6%) were women (mean [SD] age, 44.6 years [10.0 years]). There were no differences in rates of HIV viral suppression versus nonsuppression or death among the 3 groups at 12 months. Eighty-five of 249 patients (34.1%) in the usual-treatment group experienced treatment success compared with 89 of 249 patients (35.7%) in the navigation-only group for a treatment difference of 1.6% (95% CI, -6.8% to 10.0%; P = .80) and compared with 98 of 254 patients (38.6%) in the navigation-plus-incentives group for a treatment difference of 4.5% (95% CI -4.0% to 12.8%; P = .68). The treatment difference between the navigation-only and the navigation-plus-incentives group was -2.8% (95% CI, -11.3% to 5.6%; P = .68). CONCLUSIONS AND RELEVANCE Among hospitalized patients with HIV infection and substance use, patient navigation with or without financial incentives did not have a beneficial effect on HIV viral suppression relative to nonsuppression or death at 12 months vs treatment as usual. These findings do not support these interventions in this setting. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT01612169.


The Journal of Infectious Diseases | 2014

Elite Controllers are Hospitalized More Often than Persons with Medically Controlled HIV

Trevor A. Crowell; Kelly A. Gebo; Joel N. Blankson; P. Todd Korthuis; Baligh R. Yehia; Richard M. Rutstein; Richard D. Moore; Victoria Sharp; Ank E. Nijhawan; W. Christopher Mathews; Lawrence H. Hanau; Roberto Corales; Robert Beil; Charurut Somboonwit; Howard Edelstein; Sara Allen; Stephen A. Berry

OBJECTIVES We sought to determine the preventive healthcare needs of incarcerated women in the following areas: cervical cancer and breast cancer screening, sexually transmitted infection (STI) screening, hepatitis screening and vaccination, and smoking cessation. METHODS A cross-sectional interview survey of a random sample of 100 incarcerated women at the Rhode Island Department of Corrections (RIDOC) in Cranston, Rhode Island, was conducted. RESULTS Participants were 62% white, 11% African American, 13% Hispanic, and 14% of mixed race. Mean age was 35 years. Of those surveyed, 67% reported having had a Papanicolou (Pap) smear in the past year, the strongest predictor of which was having received a Pap smear while incarcerated. Of the inmates >40 years old, 58% reported having had a mammogram in the past 2 years. The majority (88%) reported testing for STIs in the past, and 39% desired testing during their current incarceration. As for hepatitis C, 70% had been tested previously and 37% of those reported testing positive. Hispanics were less likely than whites to have been tested for hepatitis C (OR 0.1). Over half (54%) of the women who reported testing positive for hepatitis C also reported having completed the hepatitis A and B vaccine series. Among smokers (80% of all survey participants), 61% were interested in quitting. Those who had been incarcerated multiple times were less likely to want to quit smoking (OR 0.1). CONCLUSIONS Incarceration presents a unique opportunity to provide preventive healthcare to high-risk, medically underserved women.


Journal of Acquired Immune Deficiency Syndromes | 2012

An electronic medical record-based model to predict 30-day risk of readmission and death among HIV-infected inpatients.

Ank E. Nijhawan; Christopher Clark; Richard Kaplan; Billy J. Moore; Ethan A. Halm; Ruben Amarasingham

BACKGROUND Elite controllers spontaneously suppress human immunodeficiency virus (HIV) viremia but also demonstrate chronic inflammation that may increase risk of comorbid conditions. We compared hospitalization rates and causes among elite controllers to those of immunologically intact persons with medically controlled HIV. METHODS For adults in care at 11 sites from 2005 to 2011, person-years with CD4 T-cell counts ≥350 cells/mm(2) were categorized as medical control, elite control, low viremia, or high viremia. All-cause and diagnostic category-specific hospitalization rates were compared between groups using negative binomial regression. RESULTS We identified 149 elite controllers (0.4%) among 34 354 persons in care. Unadjusted hospitalization rates among the medical control, elite control, low-viremia, and high-viremia groups were 10.5, 23.3, 12.6, and 16.9 per 100 person-years, respectively. After adjustment for demographic and clinical factors, elite control was associated with higher rates of all-cause (adjusted incidence rate ratio, 1.77 [95% confidence interval, 1.21-2.60]), cardiovascular (3.19 [1.50-6.79]) and psychiatric (3.98 [1.54-10.28]) hospitalization than was medical control. Non-AIDS-defining infections were the most common reason for admission overall (24.1% of hospitalizations) but were rare among elite controllers (2.7%), in whom cardiovascular hospitalizations were most common (31.1%). CONCLUSIONS Elite controllers are hospitalized more frequently than persons with medically controlled HIV and cardiovascular hospitalizations are an important contributor.


PLOS ONE | 2015

The HIV Care Continuum: Changes over Time in Retention in Care and Viral Suppression

Baligh R. Yehia; Alisa J. Stephens-Shields; John A. Fleishman; Stephen A. Berry; Allison L. Agwu; Joshua P. Metlay; Richard D. Moore; W. Christopher Mathews; Ank E. Nijhawan; Richard M. Rutstein; Aditya H. Gaur; Kelly A. Gebo; Howard Edelstein; Roberto Corales; Jeffrey M. Jacobson; Sara Allen; Stephen Boswell; Robert Beil; Carolyn Chu; Lawrence H. Hanau; P. Todd Korthuis; Muhammad Akbar; Laura Armas-Kolostroubis; Victoria Sharp; Stephen M. Arpadi; Charurut Somboonwit; Jonathan A. Cohn; Fred J. Hellinger; Irene Fraser; Robert W. Mills

Background:Readmission after hospitalization is costly, time-consuming, and remains common among HIV-infected individuals. We sought to use data from the Electronic Medical Record (EMR) to create a clinical, robust, multivariable model for predicting readmission risk in hospitalized HIV-infected patients. Methods:We extracted clinical and nonclinical data from the EMR of HIV-infected patients admitted to a large urban hospital between March 2006 and November 2008. These data were used to build automated predictive models for 30-day risk of readmission and death. Results:We identified 2476 index admissions among HIV-infected inpatients who were 73% males, 57% African American, with a mean age of 43 years. One-quarter were readmitted, and 3% died within 30 days of discharge. Those with a primary diagnosis during the index admission of HIV/AIDS accounted for the largest proportion of readmissions (41%), followed by those initially admitted for other infections (10%) or for oncologic (6%), pulmonary (5%), gastrointestinal (4%), and renal (3%) causes. Factors associated with readmission risk include: AIDS defining illness, CD4 ⩽ 92, laboratory abnormalities, insurance status, homelessness, distance from the hospital, and prior emergency department visits and hospitalizations (c = 0.72; 95% confidence interval: 0.70 to 0.75). The multivariable predictors of death were CD4 < 132, abnormal liver function tests, creatinine >1.66, and hematocrit <30.8 (c = 0.79; 95% confidence interval: 0.74 to 0.84) for death. Conclusions:Readmission rates among HIV-infected patients were high. An automated model composed of factors accessible from the EMR in the first 48 hours of admission performed well in predicting the 30-day risk of readmission among HIV patients. Such a model could be used in real-time to identify HIV patients at highest risk so readmission prevention resources could be targeted most efficiently.


Open Forum Infectious Diseases | 2015

Histoplasmosis-Induced Hemophagocytic Syndrome: A Case Series and Review of the Literature.

Jennifer Townsend; Satish Shanbhag; John Hancock; Kathryn Bowman; Ank E. Nijhawan

Background The HIV care continuum (diagnosis, linkage to care, retention in care, receipt of antiretroviral therapy (ART), viral suppression) has been used to identify opportunities for improving the delivery of HIV care. Continuum steps are typically calculated in a conditional manner, with the number of persons completing the prior step serving as the base population for the next step. This approach may underestimate the prevalence of viral suppression by excluding patients who are suppressed but do not meet standard definitions of retention in care. Understanding how retention in care and viral suppression interact and change over time may improve our ability to intervene on these steps in the continuum. Methods We followed 17,140 patients at 11 U.S. HIV clinics between 2010-2012. For each calendar year, patients were classified into one of five categories: (1) retained/suppressed, (2) retained/not-suppressed, (3) not-retained/suppressed, (4) not-retained/not-suppressed, and (5) lost to follow-up (for calendar years 2011 and 2012 only). Retained individuals were those completing ≥2 HIV medical visits separated by ≥90 days in the year. Persons not retained completed ≥1 HIV medical visit during the year, but did not meet the retention definition. Persons lost to follow-up had no HIV medical visits in the year. HIV viral suppression was defined as HIV-1 RNA ≤200 copies/mL at the last measure in the year. Multinomial logistic regression was used to determine the probability of patients’ transitioning between retention/suppression categories from 2010 to 2011 and 2010 to 2012, adjusting for age, sex, race/ethnicity, HIV risk factor, insurance status, CD4 count, and use of ART. Results Overall, 65.8% of patients were retained/suppressed, 17.4% retained/not-suppressed, 10.0% not-retained/suppressed, and 6.8% not-retained/not-suppressed in 2010. 59.5% of patients maintained the same status in 2011 (kappa=0.458) and 53.3% maintained the same status in 2012 (kappa=0.437). Conclusions Not counting patients not-retained/suppressed as virally suppressed, as is commonly done in the HIV care continuum, underestimated the proportion suppressed by 13%. Applying the care continuum in a longitudinal manner will enhance its utility.


Sexually Transmitted Diseases | 2012

Prevalence and Predictors of Trichomonas Infection in Newly Incarcerated Women

Ank E. Nijhawan; Kimberle C. Chapin; Rachel Salloway; Sarah Andrea; Jessi Champion; Mary B. Roberts; Jennifer G. Clarke

Background. Histoplasmosis-associated hemophagocytic lymphohistiocytosis (HLH) is a relatively rare disorder for which data are limited regarding optimal treatment and clinical outcomes in adults. We describe the clinical features, treatment, and outcomes of patients with histoplasmosis-associated HLH at our institution. Methods. We performed a retrospective chart review of all inpatients at Parkland Hospital diagnosed with HLH associated with Histoplasma capsulatum from 2003 to 2013. Results. Eleven cases of histoplasmosis-associated HLH over this time period were identified. Nine of eleven cases were males (82%). Nine of these patients had human immunodeficiency virus (HIV)/acquired immune deficiency syndrome (AIDS), 1 was a renal transplant patient on immunosuppressants, and the other had no documented immunocompromise. The most common HLH criteria were splenomegaly (n = 10), fever (n = 10), and ferritin >500 ng/dL (n = 9). Urine Histoplasma antigen was positive in every patient tested (n = 9 of 9), and most antibodies for Histoplasma were positive if checked (n = 4 of 5). A majority of patients received liposomal amphotericin B (n = 9) with an average treatment duration of 11 days, and 5 patients also received prednisone, intravenous immunoglobulin (IVIG), or both. Overall, 5 patients died within 30 days (45.5%), and 7 patients died within 90 days (63.6%). Of the 5 patients that received immunosuppression, 4 died (80%), whereas in the group not given additional immunosuppression (n = 5), 2 died (40%). Conclusions. Histoplasmosis-associated HLH among adults is a lethal disease of highly immunocompromised patients, especially patients with HIV/AIDS. Clinical features such as splenomegaly, elevated ferritin, and cytopenias should prompt evaluation for HLH in this population. Further data are needed to define the role of immunosuppression, IVIG, and highly active antiretroviral therapy in treating this condition.


Sexually Transmitted Diseases | 2011

The association between Trichomonas infection and incarceration in HIV-seropositive and at-risk HIV-seronegative women.

Ank E. Nijhawan; Alison DeLong; David D. Celentano; Robert S. Klein; Jack D. Sobel; Denise J. Jamieson; Susan Cu-Uvin

Background Trichomonas vaginalis is the most prevalent curable sexually transmitted infection in the United States and may lead to preterm delivery, infertility, and increased HIV transmission. Incarcerated women may be at especially high risk for infection, although few studies have examined routine screening for Trichomonas infection in this population. Methods Women older than 18 years entering the Rhode Island Department of Corrections between September 2009 and May 2011 were recruited to participate. All women submitted a self-collected vaginal swab for APTIMA transcription-mediated amplification testing. Each participant completed a survey addressing demographics, symptoms, sexual behavior, and substance use by audio computer-assisted self-interview. Data analysis was completed using multivariate logistic regression in SAS. Results Data for 387 women were analyzed. The mean age was 30 years, 60% were white, 18% were Hispanic, 10% were black, and 12% had other race/ethnicity. Forty-four percent reported vaginal symptoms, and 77% reported illicit drug and/or heavy alcohol use in the 30 days before incarceration. The prevalence of Trichomonas was 14% by APTIMA. The strongest predictors of infection included black race (odds ratio [OR], 5.1; 95% confidence interval [CI], 1.9–13.4; P < 0.01), more than 1 year since last Papanicolaou test (OR, 2.5; 95% CI, 1.3–4.8; P < 0.01) and presence of vaginal symptoms (OR, 2.3; 95% CI, 1.2–4.7; P = 0.02). Conclusions Trichomonas infection is common in incarcerated women, especially among black women, women with vaginal symptoms, and those not receiving routine gynecologic care. Screening for Trichomonas infection in high-risk populations, particularly if using highly sensitive methods such as transcription-mediated amplification, may lead to increased detection and treatment.

Collaboration


Dive into the Ank E. Nijhawan's collaboration.

Top Co-Authors

Avatar

Kelly A. Gebo

Johns Hopkins University

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Baligh R. Yehia

University of Pennsylvania

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

John A. Fleishman

Agency for Healthcare Research and Quality

View shared research outputs
Researchain Logo
Decentralizing Knowledge