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Dive into the research topics where Christina Psaros is active.

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Featured researches published by Christina Psaros.


Journal of the International AIDS Society | 2013

Impact of HIV-related stigma on treatment adherence: systematic review and meta-synthesis

Ingrid T. Katz; Annemarie E Ryu; Afiachukwu G Onuegbu; Christina Psaros; Sheri D. Weiser; David R. Bangsberg; Alexander C. Tsai

Adherence to HIV antiretroviral therapy (ART) is a critical determinant of HIV‐1 RNA viral suppression and health outcomes. It is generally accepted that HIV‐related stigma is correlated with factors that may undermine ART adherence, but its relationship with ART adherence itself is not well established. We therefore undertook this review to systematically assess the relationship between HIV‐related stigma and ART adherence.


Journal of Acquired Immune Deficiency Syndromes | 2012

What's love got to do with it? Explaining adherence to oral antiretroviral pre-exposure prophylaxis for hiv-serodiscordant couples

Norma C. Ware; Monique A. Wyatt; Jessica E. Haberer; Jared M. Baeten; Alexander Kintu; Christina Psaros; Steven A. Safren; Elioda Tumwesigye; Connie Celum; David R. Bangsberg

Objective:Adherence may be the “Achilles heel” of pre-exposure prophylaxis (PrEP), a promising biomedical approach to HIV prevention. This article presents an explanation of PrEP adherence for African serodiscordant couples derived from qualitative data. Design:Explaining quantitative findings is one way qualitative investigation contributes to research in medicine and public health. This qualitative interview study was nested in the Partners PrEP Study, a phase III randomized trial evaluating oral tenofovir and emtricitabine/tenofovir PrEP to prevent HIV acquisition by HIV-uninfected partners in serodiscordant heterosexual couples. Methods:In-depth qualitative interviews were provided by 60 Partners PrEP Study participants in Uganda. Interviews used open-ended questions eliciting information on adherence experiences, barriers, and facilitators. An inductive approach informed by grounded theory methodology was used to analyze study data. Results:The proposed explanation may be summarized as follows. Serodiscordance destabilizes couples, as the HIV-negative partner reacts with anger, fear, and sadness to the implication of infidelity represented by HIV infection. A “discordance dilemma” ensues, as the desire to avoid acquiring HIV and the advantages of preserving the relationship become competing priorities. PrEP is seen as a solution—a means of safeguarding health without ending the relationship. PrEP users benefit from the support of partners, who reinforce adherence. Where discord in the relationship persists, adherence suffers. Conclusions:PrEP adherence in serodiscordant couples may be understood as a function of the desire to reduce risk although preserving a partnered relationship. PrEP use in stable couples may be associated with improved adherence and thus, greater effectiveness.


Diabetes Care | 2014

A Randomized Controlled Trial of Cognitive Behavioral Therapy for Adherence and Depression (CBT-AD) in Patients With Uncontrolled Type 2 Diabetes

Steven A. Safren; Jeffrey S. Gonzalez; Deborah J. Wexler; Christina Psaros; Linda M. Delahanty; Aaron J. Blashill; Aleksandra I. Margolina; Enrico Cagliero

OBJECTIVE To test cognitive behavioral therapy for adherence and depression (CBT-AD) in type 2 diabetes. We hypothesized that CBT-AD would improve adherence; depression; and, secondarily, hemoglobin A1c (A1C). RESEARCH DESIGN AND METHODS Eighty-seven adults with unipolar depression and uncontrolled type 2 diabetes received enhanced treatment as usual (ETAU), including medication adherence, self-monitoring of blood glucose (SMBG), and lifestyle counseling; a provider letter documented psychiatric diagnoses. Those randomized to the intervention arm also received 9–11 sessions of CBT-AD. RESULTS Immediately after acute treatment (4 months), adjusting for baseline, CBT-AD had 20.7 percentage points greater oral medication adherence on electronic pill cap (95% CI −31.14 to −10.22, P = 0.000); 30.2 percentage points greater SMBG adherence through glucometer downloads (95% CI −42.95 to −17.37, P = 0.000); 6.44 points lower depression scores on the Montgomery-Asberg Depression Rating Scale (95% CI 2.33–10.56, P = 0.002); 0.74 points lower on the Clinical Global Impression (95% CI 0.16–1.32, P = 0.01); and 0.72 units lower A1C (95% CI 0.29–1.15, P = 0.001) relative to ETAU. Analyses of 4-, 8-, and 12-month follow-up time points indicated that CBT-AD maintained 16.3 percentage points higher medication adherence (95% CI −26.1 to −6.5, P = 0.001); 22.3 percentage points greater SMBG adherence (95% CI −36.1 to −8.6, P = 0.002); and 0.63 units lower A1C (95% CI 0.06–1.2, P = 0.03) after acute treatment ended. For depression, there was some evidence of continued improvement posttreatment, but no between-group differences. CONCLUSIONS CBT-AD is an effective intervention for adherence, depression, and glycemic control, with enduring and clinically meaningful benefits for diabetes self-management and glycemic control in adults with type 2 diabetes and depression.


Nicotine & Tobacco Research | 2009

The association of depressive, anxiety, and stress symptoms and postpartum relapse to smoking: A longitudinal study

Elyse R. Park; Yuchiao Chang; Virginia P. Quinn; Susan Regan; Lee S. Cohen; Adele C. Viguera; Christina Psaros; Kaile Ross; Nancy A. Rigotti

INTRODUCTION The aim of this prospective repeated measures, mixed-methods observational study was to assess whether depressive, anxiety, and stress symptoms are associated with postpartum relapse to smoking. METHODS A total of 65 women who smoked prior to pregnancy and had not smoked during the last month of pregnancy were recruited at delivery and followed for 24 weeks. Surveys administered at baseline and at 2, 6, 12, and 24 weeks postpartum assessed smoking status and symptoms of depression (Beck Depression Inventory [BDI]), anxiety (Beck Anxiety Inventory [BAI]), and stress (Perceived Stress Scale [PSS]). In-depth interviews were conducted with women who reported smoking. RESULTS Although 92% of the participants reported a strong desire to stay quit, 47% resumed smoking by 24 weeks postpartum. Baseline factors associated with smoking at 24 weeks were having had a prior delivery, not being happy about the pregnancy, undergoing counseling for depression or anxiety during pregnancy, and ever having struggled with depression (p < .05). In a repeated measures regression model, the slope of BDI scores from baseline to the 12-week follow-up differed between nonsmokers and smokers (-0.12 vs. +0.11 units/week, p = .03). The slope of PSS scores also differed between nonsmokers and smokers (-0.05 vs. +0.08 units/week, p = .04). In qualitative interviews, most women who relapsed attributed their relapse and continued smoking to negative emotions. DISCUSSION Among women who quit smoking during pregnancy, a worsening of depressive and stress symptoms over 12 weeks postpartum was associated with an increased risk of smoking by 24 weeks.


Diabetes Care | 2013

Validity of Medication Adherence Self-Reports in Adults With Type 2 Diabetes

Jeffrey S. Gonzalez; Havah E. Schneider; Deborah J. Wexler; Christina Psaros; Linda M. Delahanty; Enrico Cagliero; Steven A. Safren

OBJECTIVE To assess the validity of self-report measures of diabetes medication adherence and evaluate the effect of depression on the validity of these reports. RESEARCH DESIGN AND METHODS Adults with type 2 diabetes, treated with oral medications, completed a set of medication adherence self-reports that varied response scales and time frames, were administered structured clinical interviews for depression, and provided blood samples for HbA1c as part of a screening for an intervention study. A subsample of participants with HbA1c ≥7.0% and clinically significant depression received Medication Event Monitoring System (MEMS) bottle caps to record adherence. Analyses examined relationships between adherence measures and HbA1c and, in the subsample, MEMS. Moderated linear regression evaluated whether depression severity modified relationships with HbA1c. RESULTS Participant (n = 170, 57% men, 81% white, mean HbA1c 8.3% [SD, 1.7]) adherence self-reports were significantly (r = −0.18 to −0.28; P < 0.03) associated with lower HbA1c. In the subsample (n = 88), all self-reports were significantly (r = 0.35 to 0.55; P ≤ 0.001) associated with MEMS-measured adherence. Depression significantly moderated the relationship between three of six self-reports and HbA1c; at high levels of depression, associations with HbA1c became nonsignificant. CONCLUSIONS Results support the validity of easily administered self-reports for diabetes medication adherence. One-month, percentage-based ratings of adherence had the strongest associations with MEMS and HbA1c; those requiring the report of missed doses had weaker associations. One-week self-ratings and measures that require respondents to record the number of missed doses appear to be vulnerable to bias from depression severity.


Archives of Womens Mental Health | 2010

Satisfaction with pregnancy loss aftercare: are women getting what they want?

Pamela A. Geller; Christina Psaros; Sara L. Kornfield

While there is increasing recognition that early miscarriage represents a significant loss experience that often provokes depression and anxiety, women’s dissatisfaction with some aspects of care received from healthcare professionals following a pregnancy loss and the potentially negative consequences of this are often less recognized. This review examines available literature to identify what comprises “treatment as usual,” how satisfied women are with the typical services they receive from healthcare personnel, and whether these services are consistent with women’s self-identified needs. Results are reviewed according to four major themes—patient satisfaction with: attitudes of healthcare providers, provision of information, interventions provided, and follow-up care. In general, women and families who have experienced a miscarriage report low levels of satisfaction in the presence of perceived negative attitudes from healthcare providers, insufficient provision of information, and inadequate follow-up care that did not focus on emotional well-being. Higher levels of satisfaction are reported among women whose providers were emotionally attuned to the magnitude of the loss, provided information, and involved women in treatment decisions when possible. Limitations of current research are reviewed and directions for future research, training, and practice are briefly discussed.


PLOS ONE | 2013

Reliability and Validity of Instruments for Assessing Perinatal Depression in African Settings: Systematic Review and Meta-Analysis

Alexander C. Tsai; Jennifer Scott; Kristin J. Hung; Jennifer Q. Zhu; Lynn T. Matthews; Christina Psaros; Mark Tomlinson

Background A major barrier to improving perinatal mental health in Africa is the lack of locally validated tools for identifying probable cases of perinatal depression or for measuring changes in depression symptom severity. We systematically reviewed the evidence on the reliability and validity of instruments to assess perinatal depression in African settings. Methods and Findings Of 1,027 records identified through searching 7 electronic databases, we reviewed 126 full-text reports. We included 25 unique studies, which were disseminated in 26 journal articles and 1 doctoral dissertation. These enrolled 12,544 women living in nine different North and sub-Saharan African countries. Only three studies (12%) used instruments developed specifically for use in a given cultural setting. Most studies provided evidence of criterion-related validity (20 [80%]) or reliability (15 [60%]), while fewer studies provided evidence of construct validity, content validity, or internal structure. The Edinburgh postnatal depression scale (EPDS), assessed in 16 studies (64%), was the most frequently used instrument in our sample. Ten studies estimated the internal consistency of the EPDS (median estimated coefficient alpha, 0.84; interquartile range, 0.71-0.87). For the 14 studies that estimated sensitivity and specificity for the EPDS, we constructed 2 x 2 tables for each cut-off score. Using a bivariate random-effects model, we estimated a pooled sensitivity of 0.94 (95% confidence interval [CI], 0.68-0.99) and a pooled specificity of 0.77 (95% CI, 0.59-0.88) at a cut-off score of ≥9, with higher cut-off scores yielding greater specificity at the cost of lower sensitivity. Conclusions The EPDS can reliably and validly measure perinatal depression symptom severity or screen for probable postnatal depression in African countries, but more validation studies on other instruments are needed. In addition, more qualitative research is needed to adequately characterize local understandings of perinatal depression-like syndromes in different African contexts.


Health Psychology | 2015

Distress and type 2 diabetes-treatment adherence: A mediating role for perceived control.

Jeffrey S. Gonzalez; Erica Shreck; Christina Psaros; Steven A. Safren

OBJECTIVE To better understand independent pathways linking emotional distress, medication adherence, and glycemic control in adults with Type 2 diabetes, as well as the potential mediating effects of perceived control over illness and self-efficacy. METHOD Adults with Type 2 diabetes (N = 142) were recruited for an intervention study evaluating cognitive-behavioral therapy for adherence and depression. Depressive symptom severity was assessed via semistructured interview. Validated self-reports assessed diabetes-related distress, perceived control over diabetes (perceived control), self-efficacy for diabetes self-management, and medication adherence. Glycemic control was evaluated by hemoglobin A1C. Only baseline data were included in correlational and linear regression analyses. RESULTS Perceived control was an important mediator of emotional distress for both medication adherence and A1C outcomes. Specifically, regression analyses demonstrated that diabetes distress, but not depression severity, was significantly related to medication adherence and A1C. Self-efficacy and perceived control were also independently associated with medication adherence and A1C. Mediation analyses demonstrated a significant indirect effect for diabetes distress and medication adherence through perceived control and self-efficacy. The relationship between distress and A1C was accounted for by an indirect effect through perceived control. CONCLUSION Results demonstrated that diabetes-related emotional distress is associated with poorer treatment adherence and glycemic control among adults with Type 2 diabetes; these relationships were partially mediated through perceived control over diabetes. Perceptions of ones personal ability to influence the course of diabetes may be important in understanding the pathway between emotional distress and poor diabetes-treatment outcomes.


Current Hiv\/aids Reports | 2015

Adherence to HIV Care After Pregnancy Among Women in Sub-Saharan Africa: Falling Off the Cliff of the Treatment Cascade

Christina Psaros; Jocelyn E. Remmert; David R. Bangsberg; Steven A. Safren; Jennifer A. Smit

Increased access to testing and treatment means HIV can be managed as a chronic illness, though successful management requires continued engagement with the health care system. Most of the global HIV burden is in sub-Saharan Africa where rates of new infections are consistently higher in women versus men. Pregnancy is often the point at which an HIV diagnosis is made. While preventing mother to child transmission (PMTCT) interventions significantly reduce the rate of vertical transmission of HIV, women must administer ARVs to their infants, adhere to breastfeeding recommendations, and test their infants for HIV after childbirth. Some women will be expected to remain on the ARVs initiated during pregnancy, while others are expected to engage in routine testing so treatment can be reinitiated when appropriate. The postpartum period presents many barriers to sustained treatment adherence and engagement in care. While some studies have examined adherence to postpartum PMTCT guidelines, few have focused on continued engagement in care by the mother, and very few examine adherence beyond the 6-week postpartum visit. Here, we attempt to identify gaps in the research literature and make recommendations on how to address barriers to ongoing postpartum HIV care.


Journal of Acquired Immune Deficiency Syndromes | 2014

Lost Opportunities to Reduce Periconception HIV Transmission: Safer Conception Counseling By South African Providers Addresses Perinatal but not Sexual HIV Transmission

Lynn T. Matthews; Cecilia Milford; Angela Kaida; Matthew J. Ehrlich; Courtney Ng; Ross Greener; F. N. Mosery; Abigail Harrison; Christina Psaros; Steven A. Safren; Francis Bajunirwe; Ira B. Wilson; David R. Bangsberg; Jennifer A. Smit

Introduction:Safer conception strategies create opportunities for HIV-serodiscordant couples to realize fertility goals and minimize periconception HIV transmission. Patient–provider communication about fertility goals is the first step in safer conception counseling. Methods:We explored provider practices of assessing fertility intentions among HIV-infected men and women, attitudes toward people living with HIV (PLWH) having children, and knowledge and provision of safer conception advice. We conducted in-depth interviews (9 counselors, 15 nurses, 5 doctors) and focus group discussions (6 counselors, 7 professional nurses) in eThekwini District, South Africa. Data were translated, transcribed, and analyzed using content analysis with NVivo10 software. Results:Among 42 participants, median age was 41 (range, 28–60) years, 93% (39) were women, and median years worked in the clinic was 7 (range, 1–27). Some providers assessed womens, not mens, plans for having children at antiretroviral therapy initiation, to avoid fetal exposure to efavirenz. When conducted, reproductive counseling included CD4 cell count and HIV viral load assessment, advising mutual HIV status disclosure, and referral to another provider. Barriers to safer conception counseling included provider assumptions of HIV seroconcordance, low knowledge of safer conception strategies, personal feelings toward PLWH having children, and challenges to tailoring safer sex messages. Conclusions:Providers need information about HIV serodiscordance and safer conception strategies to move beyond discussing only perinatal transmission and maternal health for PLWH who choose to conceive. Safer conception counseling may be more feasible if the message is distilled to delaying conception attempts until the infected partner is on antiretroviral therapy. Designated and motivated nurse providers may be required to provide comprehensive safer conception counseling.

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Jennifer A. Smit

University of the Witwatersrand

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Angela Kaida

Simon Fraser University

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Cecilia Milford

University of the Witwatersrand

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