Network


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

Hotspot


Dive into the research topics where Sarah Averbach is active.

Publication


Featured researches published by Sarah Averbach.


AIDS | 2010

The association between cervical human papillomavirus infection and HIV acquisition among women in Zimbabwe

Sarah Averbach; Patti E. Gravitt; Rebecca G. Nowak; David D. Celentano; Megan Dunbar; Charles S. Morrison; Barbara Grimes; Nancy S. Padian

Background:The prevalence of human papillomavirus (HPV) is higher among HIV-positive women, but the prevalence of HPV prior to HIV acquisition has not been carefully evaluated. Objective:This study evaluated whether HPV infection is independently associated with heterosexual HIV acquisition in a cohort of Zimbabwean women. Design:Case–control study nested within a large multicenter cohort study (HC-HIV). Methods:Cases consisted of Zimbabwean women with incident HIV infection observed during follow-up (n = 145). HIV-uninfected controls were selected and matched to cases (n = 446). The prevalence of cervical HPV infections was compared at the visit prior to HIV infection in the cases and at the same follow-up visit in the matched controls. Results:The odds of acquiring HIV were 2.4 times higher in women with prior cervical HPV infection after adjustment for behavioral and biologic risk factors. There was no statistically significant difference in the risk of HIV acquisition between women infected with high-risk vs. low-risk HPV types. Loss of detection of at least one HPV DNA type was significantly associated with HIV acquisition [odd ratio = 5.4 (95% confidence interval 2.9–9.9)] (P < .0001). Conclusion:Cervical HPV infection is associated with HIV acquisition among women residing in a region with a high prevalence of both infections. Further studies are required to evaluate whether the observed association is causal.


Conflict and Health | 2013

An assessment of gender inequitable norms and gender-based violence in South Sudan: a community-based participatory research approach

Jennifer Scott; Sarah Averbach; Anna M. Modest; Michele R. Hacker; Sarah Cornish; Danielle Spencer; Maureen Murphy; Parveen Parmar

BackgroundFollowing decades of conflict, South Sudan gained independence from Sudan in 2011. Prolonged conflict, which included gender-based violence (GBV), exacerbated gender disparities. This study aimed to assess attitudes towards gender inequitable norms related to GBV and to estimate the frequency of GBV in sampled communities of South Sudan.MethodsApplying a community-based participatory research approach, 680 adult male and female household respondents were interviewed in seven sites within South Sudan in 2009–2011. Sites were selected based on program catchment area for a non-governmental organization and respondents were selected by quota sampling. The verbally-administered survey assessed attitudes using the Gender Equitable Men scale. Results were stratified by gender, age, and education.ResultsOf 680 respondents, 352 were female, 326 were male, and 2 did not provide gender data. Among respondents, 82% of females and 81% of males agreed that ‘a woman should tolerate violence in order to keep her family together’. The majority, 68% of females and 63% of males, also agreed that ‘there are times when a woman deserves to be beaten’. Women (47%) were more likely than men (37%) to agree that ‘it is okay for a man to hit his wife if she won’t have sex with him’ (p=0.005). Agreement with gender inequitable norms decreased with education. Across sites, 69% of respondents knew at least one woman who was beaten by her husband in the past month and 42% of respondents knew at least one man who forced his wife or partner to have sex.ConclusionThe study reveals an acceptance of violence against women among sampled communities in South Sudan. Both women and men agreed with gender inequitable norms, further supporting that GBV programming should address the attitudes of both women and men. The results support promotion of education as a strategy for addressing gender inequality and GBV. The findings reveal a high frequency of GBV across all assessment sites; however, population-based studies are needed to determine the prevalence of GBV in South Sudan. South Sudan, the world’s newest nation, has the unique opportunity to implement policies that promote gender equality and the protection of women.


Contraception | 2015

Intracesarean insertion of the Copper T380A versus 6 weeks postcesarean: a randomized clinical trial.

Felicia Lester; Othman Kakaire; Josaphat Byamugisha; Sarah Averbach; Jennifer Fortin; Rie Maurer; Alisa B. Goldberg

OBJECTIVES To compare rates of Copper T380A intrauterine device (IUD) utilization and satisfaction with immediate versus delayed IUD insertion after cesarean delivery in Kampala, Uganda. METHODS This study was a randomized clinical trial of women undergoing cesarean section who desired an IUD in Kampala, Uganda. Participants were randomly assigned to IUD insertion at the time of cesarean delivery or 6weeks afterward. The primary outcome was IUD utilization at 6months after delivery. RESULTS Among 68 women who underwent randomization, an IUD was inserted in 100% (34/34) of the women in the immediate insertion group and in 53% (18/34) in the delayed group. IUD use at 6 months was higher in the immediate insertion group (93% vs. 50% after delayed insertion; p<.0001). Infection and expulsion were rare and did not differ between groups. When we pooled both groups and looked at IUD users compared to nonusers, 91% (39/43) of IUD users were satisfied or very satisfied with their contraceptive method compared to 44% (11/25) of nonusers (p<.0001). Women who chose not to be in the study or had the IUD removed often did so because of perceived husband or community disapproval. CONCLUSION The 6-month utilization of an IUD after immediate insertion was significantly higher than after delayed insertion without increased complications. Contraceptive satisfaction was significantly higher among IUD users than nonusers. Community and husband attitudes influence IUD utilization and continuation in Kampala, Uganda. IMPLICATIONS This work is important because it shows the safety and efficacy of providing IUDs during cesarean section in a setting where access to any healthcare, including contraception, can be extremely limited outside of childbearing and the consequences of an unintended, closely spaced pregnancy after a cesarean section can be life threatening.


Clinical Obstetrics and Gynecology | 2014

Testing for sexually transmitted infections at intrauterine device insertion: an evidence-based approach.

Carolyn B. Sufrin; Sarah Averbach

This article reviews evidence to guide safe and cost-effective testing for asymptomatic Neisseria gonorrhea and Chlamydia trachomatis infection before inserting intrauterine devices (IUDs). All women should be screened with a history and pelvic examination before IUD insertion, but only high-risk women need a laboratory test; this includes women aged 25 years or younger with no test within the last year, and women with additional behavioral risk factors. If testing is indicated, it should be done on the same day as insertion not a separate visit. Women with positive test results should be treated as soon as results are available.


International Journal of Gynecology & Obstetrics | 2013

Mycoplasma genitalium and preterm delivery at an urban community health center

Sarah Averbach; Michele R. Hacker; Timothy Yiu; Anna M. Modest; Jordan D. Dimitrakoff; Hope A. Ricciotti

To determine the prepartum prevalence of cervical Mycoplasma genitalium colonization and evaluate prospectively whether colonization is associated with preterm delivery among women from a racial/ethnic minority background with a high risk of delivering a low birth weight newborn and a high prevalence of sexually transmitted infections.


Mucosal Immunology | 2017

Effects of depot-medroxyprogesterone acetate on the immune microenvironment of the human cervix and endometrium: implications for HIV susceptibility

Karen Smith-McCune; Joan F. Hilton; U Shanmugasundaram; J W Critchfield; Ruth M. Greenblatt; Dominika Seidman; Sarah Averbach; Linda C. Giudice; Barbara L. Shacklett

Depot-medroxyprogesterone acetate is a commonly used injectable contraceptive that has been associated with an increased risk of HIV acquisition. This study compares effects of depot-medroxyprogesterone acetate on immune parameters from several upper reproductive tract compartments relevant to HIV-1 susceptibility in repetitive samples from 15 depot-medroxyprogesterone acetate users and 27 women not on hormonal contraceptives. Compared with samples from unexposed women in the mid-luteal phase, depot-medroxyprogesterone acetate use was associated with: increased endocervical concentrations of MCP1 and IFNalpha2; decreased endocervical concentrations of IL1beta and IL6; increased proportions of endometrial CD4+ and CD8+ cells expressing the activation marker HLADR; increased density of endometrial macrophages; and decreased density of endometrial regulatory T cells. Unlike previous reports with samples from the vagina, we did not observe increased expression of the HIV co-receptor CCR5 on CD4+ T cells in the endocervix or endometrium. Our results indicate important differences in anatomic compartments regarding mechanisms by which depot-medroxyprogesterone acetate could be associated with increased risk of HIV acquisition, including increased recruitment of macrophages to the endometrium, decreased levels of pro-inflammatory cytokines in the endocervix possibly leading to enhanced susceptibility to viral infection, and activation of endometrial T cells.


Global Public Health | 2014

Influences of sex, age and education on attitudes towards gender inequitable norms and practices in South Sudan

Jennifer Scott; Michele R. Hacker; Sarah Averbach; Anna M. Modest; Sarah Cornish; Danielle Spencer; Maureen Murphy; Parveen Parmar

Prolonged conflict in South Sudan exacerbated gender disparities and inequities. This study assessed differences in attitudes towards gender inequitable norms and practices by sex, age and education to inform programming. Applying community-based participatory research methodology, 680 adult respondents, selected by quota sampling, were interviewed in seven South Sudanese communities from 2009 to 2011. The verbally administered survey assessed attitudes using the Gender Equitable Men scale. Data were stratified by sex, age and education. Of 680 respondents, 352 were female, 326 were male and two did not report their sex. The majority of respondents agreed with gender inequitable household roles, but the majority disagreed with gender inequitable practices (i.e., early marriage, forced marriage and inequitable education of girls). Respondents who reported no education were more likely than those who reported any education to agree with gender inequitable practices (all p < 0.03) except for forced marriage (p = 0.07), and few significant differences were observed when these responses were stratified by sex and by age. The study reveals agreement with gender inequitable norms in the household but an overall disagreement with gender inequitable practices in sampled communities. The findings support that education of both women and men may promote gender equitable norms and practices.


American Journal of Reproductive Immunology | 2016

Effects of the levonorgestrel-releasing intrauterine device on the immune microenvironment of the human cervix and endometrium.

Uma Shanmugasundaram; Joan F. Hilton; J. William Critchfield; Ruth M. Greenblatt; Linda C. Giudice; Sarah Averbach; Dominika Seidman; Barbara L. Shacklett; Karen Smith-McCune

There is little information regarding the impact of the intrauterine device on immune parameters of the upper female reproductive tract related to risk of HIV acquisition.


American Journal of Obstetrics and Gynecology | 2017

Immediate versus delayed postpartum use of levonorgestrel contraceptive implants: a randomized controlled trial in Uganda

Sarah Averbach; Othman Kakaire; Herbert Kayiga; Felicia Lester; Abby Sokoloff; Josaphat Byamugisha; Christine Dehlendorf; Jody Steinauer

BACKGROUND: Use of long‐acting, highly effective contraception has the potential to improve womens ability to avoid short interpregnancy intervals, which are associated with an increased risk of maternal morbidity and mortality, and preterm delivery. In Uganda, contraceptive implants are not routinely available during the immediate postpartum period. OBJECTIVE: The purpose of this study was to compare the proportion of women using levonorgestrel contraceptive implants at 6 months after delivery in women randomized to immediate or delayed insertion. STUDY DESIGN: This was a randomized controlled trial among women in Kampala, Uganda. Women who desired contraceptive implants were randomly assigned to insertion of a 2‐rod contraceptive implant system containing 75 mg of levonorgestrel immediately following delivery (within 5 days of delivery and before discharge from the hospital) or delayed insertion (6 weeks postpartum). The primary outcome was implant utilization at 6 months postpartum. RESULTS: From June to October 2015, 205 women were randomized, 103 to the immediate group and 102 to the delayed group. Ninety‐three percent completed the 6 month follow‐up visit. At 6 months, implant use was higher in the immediate group compared with the delayed group (97% vs 68%; P < .001), as was the use of any highly effective contraceptive (98% vs 81%; P = .001). Women in the immediate group were more satisfied with the timing of implant placement. If given the choice, 81% of women in the immediate group and 63% of women in the delayed group would choose the same timing of placement again (P = .01). There were no serious adverse events in either group. CONCLUSION: Offering women the option of initiating contraceptive implants in the immediate postpartum period has the potential to increase contraceptive utilization, decrease unwanted pregnancies, prevent short interpregnancy intervals, and help women achieve their reproductive goals.


American Journal of Obstetrics and Gynecology | 2017

The effect of intrauterine devices on acquisition and clearance of human papillomavirus

Sarah Averbach; Yifei Ma; Karen Smith-McCune; Stephen Shiboski; Anna B. Moscicki

BACKGROUND: Previous studies have shown a decrease in cervical cancer associated with intrauterine device use. It has been hypothesized that intrauterine device use may alter the natural history of human papillomavirus infections, preempting development of precancerous lesions of the cervix and cervical cancer, but the effect of intrauterine devices on the natural history of human papillomavirus infection and subsequent development of cervical cancer is poorly understood. OBJECTIVE: The purpose of this study was to evaluate the association between intrauterine device use and cervical high‐risk human papillomavirus acquisition and clearance. STUDY DESIGN: This is a prospective cohort study conducted from October 2000 through June 2014 among 676 sexually active young women and girls enrolled from family planning clinics in San Francisco, CA. Data were analyzed using a Cox proportional hazards model, including time‐varying indicators of intrauterine device use, and adjusting for fixed and time‐dependent predictor variables. RESULTS: A total of 85 women used an intrauterine device at some time during follow‐up. Among 14,513 study visits, women reported intrauterine device use at 505 visits. After adjusting for potential behavioral confounders, there was no association between intrauterine device use and human papillomavirus acquisition (hazard ratio, 0.50; 95% confidence interval, 0.20–1.23; P = .13) or clearance of human papillomavirus infection (hazard ratio, 1.44; 95% confidence interval, 0.76–2.72; P = .26). CONCLUSION: Current intrauterine device use is not associated with acquisition or persistence of human papillomavirus infection. Intrauterine device use is safe among women and girls with human papillomavirus infections and at risk for human papillomavirus acquisition. Intrauterine device use may play a role further downstream in the natural history of cervical cancer by inhibiting the development of precancerous lesions of the cervix in human papillomavirus–infected women, or enhancing clearance of established precancerous lesions.

Collaboration


Dive into the Sarah Averbach's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar

Anna M. Modest

Beth Israel Deaconess Medical Center

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Jennifer Scott

Brigham and Women's Hospital

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Felicia Lester

University of California

View shared research outputs
Top Co-Authors

Avatar

Parveen Parmar

Brigham and Women's Hospital

View shared research outputs
Top Co-Authors

Avatar

Alisa B. Goldberg

Brigham and Women's Hospital

View shared research outputs
Researchain Logo
Decentralizing Knowledge