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Full-Text Articles in Medicine and Health Sciences
Estimating The Effect Of A Community-Based Intervention With Two Communities, Mark Van Der Laan, Maya Petersen, Wenjing Zheng
Estimating The Effect Of A Community-Based Intervention With Two Communities, Mark Van Der Laan, Maya Petersen, Wenjing Zheng
Wenjing Zheng
Due to the need to evaluate the effectiveness of community-based programs in practice, there is substantial interest in methods to estimate the causal effects of community-level treatments or exposures on individual level outcomes. The challenge one is confronted with is that different communities have different environmental factors affecting the individual outcomes, and all individuals in a community share the same environment and intervention. In practice, data are often available from only a small number of communities, making it difficult if not impossible to adjust for these environmental confounders. In this paper we consider an extreme version of this dilemma, in …
Oral And Injectable Contraception Use And Risk Of Hiv Acquisition Among Women In Sub-Saharan Africa, Sandra Mccoy, Wenjing Zheng, Elizabeth Montgomery, Kelly Blanchard, Ariane Van Der Straten, Guy De Bruyn, Nancy Padian
Oral And Injectable Contraception Use And Risk Of Hiv Acquisition Among Women In Sub-Saharan Africa, Sandra Mccoy, Wenjing Zheng, Elizabeth Montgomery, Kelly Blanchard, Ariane Van Der Straten, Guy De Bruyn, Nancy Padian
Wenjing Zheng
OBJECTIVE:: Evaluate the effect of oral and injectable hormonal contraception (HC) on the risk of HIV acquisition among women in South Africa and Zimbabwe. DESIGN:: Secondary data analysis of 4913 sexually active women aged 18-49 years followed for up to 24 months in the MIRA phase III effectiveness trial of the diaphragm and lubricant gel for HIV prevention. METHODS:: Participants were interviewed quarterly about contraception and sexual behavior and were tested for pregnancy, HIV, and other sexually transmitted infections. We used a Cox proportional hazards marginal structural model, weighted by the inverse probability of HC use, to compare the risk …
Assessing And Quantifying High Risk: Comparing Risky Behaviors By Youth In An Urban, Disadvantaged Community With Nationally Representative Youth, Monica Swahn, Robert Bossarte
Assessing And Quantifying High Risk: Comparing Risky Behaviors By Youth In An Urban, Disadvantaged Community With Nationally Representative Youth, Monica Swahn, Robert Bossarte
Monica H. Swahn
No abstract provided.
Violent Attacks On Middle Easterners In The United States During The Month Following The September 11, 2001 Terrorist Attacks, Monica Swahn, R Mahendra, L Paulozzi, R Winston, G Shelley, J Taliano, L Frazier, J Saul
Violent Attacks On Middle Easterners In The United States During The Month Following The September 11, 2001 Terrorist Attacks, Monica Swahn, R Mahendra, L Paulozzi, R Winston, G Shelley, J Taliano, L Frazier, J Saul
Monica H. Swahn
Objectives: To document and describe hate related violent attacks on Middle Easterners or those perceived to be Middle Easterners during the month following the September 11, 2001 terrorist attacks in New York City and Washington, DC. Methods: The LexisNexis database of newspaper reports were used to identify incidents of hate related violent acts against Middle Easterners or those perceived to be Middle Easterners in the US between September 1 and October 11, 2001. A total of 100 incidents of hate related violence were identified in the 2659 news articles that were reviewed. Results: Of the 100 incidents of violent victimization …
The Associations Between Victimization, Feeling Unsafe, And Asthma Episodes Among Us High-School Students, Monica Swahn, Robert Bossarte
The Associations Between Victimization, Feeling Unsafe, And Asthma Episodes Among Us High-School Students, Monica Swahn, Robert Bossarte
Monica H. Swahn
We examined the associations between victimization, missed school because of feeling unsafe, and asthma episodes among US high-school students using the 2003 Youth Risk Behavior Survey. Cross-sectional analyses on adolescents with asthma (n=1943) showed that any victimization and missed school because of feeling unsafe significantly increased the odds of having an asthma episode in the past year (adjusted odds ratio [OR]=1.45; 95% confidence interval [CI] = 1.07, 1.95 and adjusted OR = 2.93; 95% CI = 1.90, 4.53, respectively). Victimization and feeling unsafe are important but poorly understood risk factors for asthma.
Differences In Frequency Of Violence And Reported Injury Between Relationships With Reciprocal And Nonreciprocal Intimate Partner Violence, Daniel Whitaker, Tadesse Haileyesus, Monica Swahn, Linda Saltzman
Differences In Frequency Of Violence And Reported Injury Between Relationships With Reciprocal And Nonreciprocal Intimate Partner Violence, Daniel Whitaker, Tadesse Haileyesus, Monica Swahn, Linda Saltzman
Monica H. Swahn
Objectives: We sought to examine the prevalence of reciprocal (i.e., perpetrated by both partners) and nonreciprocal intimate partner violence and to determine whether reciprocity is related to violence frequency and injury. Methods: We analyzed data on young US adults aged 18 to 28 years from the 2001 National Longitudinal Study of Adolescent Health, which contained information about partner violence and injury reported by 11 370 respondents on 18761 heterosexual relationships. Results: Almost 24% of all relationships had some violence, and half (49.7%) of those were reciprocally violent. In nonreciprocally violent relationships, women were the perpetrators in more than 70% of …