Public Health Commons^™

A Likelihood Based Method For Real Time Estimation Of The Serial Interval And Reproductive Number Of An Epidemic, Laura Forsberg White, Marcello Pagano

Harvard University Biostatistics Working Paper Series

No abstract provided.

Women’S Health In Developing Countries, Javed Rizvi, Nadeem F. Zuberi

Department of Obstetrics & Gynaecology

Healthcare priorities are different in developing and developed countries. A more effective resource allocation, complemented by efforts to implement only those practices that are effective, should be a priority for improving reproductive health services in developing countries. A large burden of gynaecological disease exists in developing countries and it is difficult to envisage serious reforms and improvements without an increase in public-sector spending. However, communities themselves could assume some responsibility for women's health in ways that prioritize women's own perceptions and primary needs. In this chapter we have compiled existing evidence regarding various gynaecological problems faced by women in developing …

Spatio-Temporal Analysis Of Areal Data And Discovery Of Neighborhood Relationships In Conditionally Autoregressive Models, Subharup Guha, Louise Ryan

Harvard University Biostatistics Working Paper Series

No abstract provided.

Stress, Coping, Social Support, And Prostate Cancer Risk Among Older African American And Caucasian Men, Ann L. Coker, Maureen Sanderson, Gary L. Ellison, Mary Kay Fadden

CRVAW Faculty Journal Articles

Objectives: While psychosocial stress and high effort coping have been associated with reduced immune function, no epidemiologic study has addressed psychological stress and risk of prostate cancer. The purpose of this analysis was to investigate the association between stress, coping, social support, and risk of prostate cancer among older men (age 65–79 years). Design: Population-based case-control study in South Carolina.

Participants: Cases were 400 incident, histologically confirmed prostate cancer cases identified through the South Carolina Central Cancer Registry between 1999 and 2001 (70.6% response rate). Controls were 385 men identified through the 1999 Health Care Financing Administration Medicare beneficiary file …

Long-Term Trends In Indigenous Deaths From Chronic Diseases In The Northern Territory: A Foot On The Brake, A Foot On The Accelerator, David P. Thomas, John R. Condon, Ian P. Anderson, Shu Q. Li, Stephen Halpin, Joan Cunningham, Steven L. Guthridge

Aboriginal Policy Research Consortium International (APRCi)

Objective: To examine trends in Northern Territory Indigenous mortality from chronic diseases other than cancer. Design: A comparison of trends in rates of mortality from six chronic diseases (ischaemic heart disease [IHD], chronic obstructive pulmonary disease [COPD], cerebrovascular disease [CVD], diabetes mellitus [DM], renal failure [RF] and rheumatic heart disease [RHD]) in the NT Indigenous population with those of the total Australian population.

Participants: NT Indigenous and total Australian populations, 1977–2001. Main outcome measures: Estimated average annual change in chronic disease mortality rates and in mortality rate ratios. Results: DeathratesfromIHDandDMamongNTIndigenouspeoplesincreased between 1977 and 2001, but this increase slowed after 1990. …

Obesity, Physical Activity, And Mortality In A Prospective Chinese Elderly Cohort, Mary Schooling, Tai Hing Lam, Zhi Bin Li, Sai Yin Ho, Wai Man Chan, Kin Sang Ho, May Ked Tham, Benjamin J. Cowling, Gabriel M. Leung

Publications and Research

Background
In older people, it is unclear whether obesity relates to mortality, which calls into question its etiologic role in disease and its public health relevance. This apparent lack of relationship in older people could be an artifactual result of their diverse health states.

Methods
We used Cox regression analysis to determine whether the effect of body mass index (BMI) (calculated as weight in kilograms divided by the square of height in meters) or physical activity on mortality varied with health status in a prospective cohort study of Chinese people 65 years or older enrolled from 1998 to 2000 at …

Hepatitis B And C: Prevalence And Risk Factors Associated With Seropositivity Among Children In Karachi, Pakistan, Wasim Jafri, Nadim Jafri, Javed Yakoob, Muhammad Islam, Syed Farhan Ali Tirmizi, Tazeen Jafar, Saeed Akhtar, Saeed Hamid, Hasnain Ali Shah, Sheikh Qamaruddin Nizami

Section of Gastroenterology

Background

Infections with hepatitis B virus (HBV) and hepatitis C virus (HCV) can lead to chronic liver disease and hepato-cellular carcinoma (HCC). This cross-sectional study estimated the prevalence and identified risk factors associated with Hepatitis B surface antigen (HBsAg) and HCV antibody (anti-HCV) sero-positivity among children 1 to 15 years of age.

Methods

The study targeted the low to middle socioeconomic population that comprises 80% to 85% of the population. Consent was obtained from parents of the eligible children before administering questionnaire and collected a blood sample for anti-HCV and HBsAg serology.

Results

3533 children were screened for HBsAg and …

Hierarchical Models For Combining Ecological And Case-Control Data, Sebastien Haneuse, Jon Wakefield

UW Biostatistics Working Paper Series

The ecological study design suffers from a broad range of biases that result from the loss of information regarding the joint distribution of individual-level outcomes, exposures and confounders. The consequent non-identifiability of individual-level models cannot be overcome without additional information; we combine ecological data with a sample of individual-level case-control data. The focus of this paper is hierarchical models to account for between-group heterogeneity. Estimation and inference pose serious compu- tational challenges. We present a Bayesian implementation, based on a data augmentation scheme where the unobserved data are treated as auxiliary variables. The methods are illustrated with a dataset of …

Disease Mapping And Spatial Regression With Count Data, Jon Wakefield

UW Biostatistics Working Paper Series

In this paper we provide critical reviews of methods suggested for the analysis of aggregate count data in the context of disease mapping and spatial regression. We introduce a new method for picking prior distributions, and propose a number of refinements of previously-used models. We also consider ecological bias, mutual standardization, and choice of both spatial model and prior specification. We analyze male lip cancer incidence data collected in Scotland over the period 1975–1980, and outline a number of problems with previous analyses of these data. A number of recommendations are provided. In disease mapping studies, hierarchical models can provide …

Knowledge, Attitude And Misconceptions Regarding Tuberculosis In Pakistani Patients, Javaid Ahmed Khan, Muhammad Irfan, Amna Zaki, Madiha Beg, Syed Fayyaz Hussain, Nadeem Rizvi

Section of Pulmonary & Critical Care

Objective:

To assess knowledge of patients with tuberculosis; about their disease and misconceptions regarding TB.

Methods:

A cross sectional study was conducted at Out-patient clinics of two teaching hospitals (private and public) in Karachi, Pakistan. A questionnaire was filled for the purpose.

Results:

A total of 170 patients were interviewed, 112 from private and 58 from a public sector hospital. Cough, fever, bloody sputum and chest pain were recognized as the common symptoms of TB. Eleven (7%) patients thought TB was not an infectious disease and 18 (10.6%) did not consider it a preventable disease. Contaminated food was considered the …

Infectious Behaviour: Imputing Subjectivity To Hiv Transmission, Barry D. Adam

Sociology, Anthropology, and Criminology Publications

This paper examines the sometimes implicit models of human behaviour circulating in science, government, and media that assign agency to HIV transmission, and contrasts these institutional ideas with the narratives of people at risk as they go about their everyday lives. Three kinds of risk talk, arising from interviews, show the limitations and paradoxes of leading constructions of the subjectivity of HIV transmission. The first shows a lack of fit, when the social conditions and presumptions that hold up the leading discourses are missing, and so choices and actions correspondingly follow alternative logics. The second type concerns “semiotic snares” that …

Socio-Demographic Correlates Of Betel, Areca And Smokeless Tobacco Use As A High Risk Behavior For Head And Neck Cancers In A Squatter Settlement Of Karachi, Pakistan, Samia Mazahir, Rabia Malik, Maria Maqsood, Kanwal Aliraza Merchant, Farida Malik, Atif Majeed, Zafar Fatmi, Muhammad Rizwanulhaq Khawaja, Shehzad Ghaffar

Community Health Sciences

Background

Head and neck cancers are a major cancer burden in Pakistan. They share a common risk factor profile including regular consumption of products of betel, areca and tobacco. Use of paan, chaalia, gutka, niswar and tumbaku is acceptable in Pakistan and is considered a normal cultural practice. This cross-sectional study was carried out to understand the relation of socio-demographic factors for the consumption of paan, chaalia, gutka, niswar and tumbaku in Pakistani population. Through systematic sampling, 425 subjects from a squatter settlement in Karachi were interviewed using a structured questionnaire. High risk behavior was defined as Daily use of …

Racial Disparity And Socioeconomic Status In Association With Survival In Older Men With Local/Regional Stage Prostate Cancer: Findings From A Large Community-Based Cohort, Xianglin L. Du, Shenying Fang, Ann L. Coker, Corinne Aragaki, Janice N. Cormier, Yan Xing, Beverly J. Gor, Wenyaw Chan

CRVAW Faculty Journal Articles

BACKGROUND

Few studies have examined the outcomes for Hispanic men with prostate carcinoma and incorporated socioeconomic factors in association with race/ethnicity in affecting survival, adjusting for factors on cancer stage, grade, comorbidity, and treatment.

METHODS

We studied a population-based cohort of 61,228 men diagnosed with local or regional stage prostate carcinoma at age 65 years or older between 1992 and 1999 in the 11 SEER (Surveillance, Epidemiology, and End Results) areas, identified from the SEER-Medicare linked data with up to 11 years of followup.

RESULTS

Low socioeconomic status was significantly associated with decreasing survival in all men with prostate carcinoma. …

Hormonal And Reproductive Factors And Risk Of Glioma: A Prospective Cohort Study, Stephanie A. Navarro Silvera, Anthony B. Miller, Thomas E. Rohan

Department of Public Health Scholarship and Creative Works

The etiology of glioma, the most commonly diagnosed malignant brain tumor among adults in the United States, is poorly understood. Given the lower incidence rate of glioma in women than in men, it has been hypothesized that reproductive and hormonal factors may be involved in the etiology of glioma. We conducted a secondary analysis of data from the National Breast Screening Study, which included 89,835 Canadian women, aged 40–59 years at recruitment between 1980 and 1985. Linkages to national cancer and mortality databases yielded data on cancer incidence and deaths from all causes, respectively, with follow‐up ending between 1998 and …

Different Public Health Interventions Have Varying Effects, Paula Diehr, Anne B. Newman, Liming Cai, Ann Derleth

UW Biostatistics Working Paper Series

Objective: To compare performance of one-time health interventions to those that change the probability of transitioning from one health state to another. Study Design and Setting: We used multi-state life table methods to estimate the impact of eight types of interventions on several outcomes. Results: In a cohort beginning at age 65, curing all the sick persons at baseline would increase life expectancy by 0.23 years and increase years of healthy life by .54 years. An equal amount of improvement could be obtained with a 12% decrease in the probability of getting sick, a 16% increase in the probability of …

A Case-Control Study Of Farming And Prostate Cancer In African-American And Caucasian Men, Tamra E. Meyer, Ann L. Coker, Maureen Sanderson, Elaine Symanski

CRVAW Faculty Journal Articles

Objective: To determine the risk of prostate cancer associated with farming by duration, recency and specific activities among African-Americans and Caucasians.

Methods: This population-based case–control study had information on farming-related activities for 405 incident prostate cancer cases and 392 controls matched for age, race and region in South Carolina, USA, from 1999 to 2001. Cases with histologically confirmed, primary invasive prostate cancer who were aged between 65 and 79 years were ascertained through the South Carolina Central Cancer Registry. Appropriately matched controls were identified from the Health Care Financing Administration Medicare Beneficiary File. Data were collected using computer-assisted telephone interviewing, …

Community Participation In Tribal Diabetes Programs, Carolyn Smith-Morris

Anthropology Research

No abstract provided.

Air Pollutants And Respiratory Symptoms Among Adults, Paulo A. Lotufo

Paulo A Lotufo

Air pollutants are associated with adverse respiratory effects mainly in susceptible groups such as children, elderly people and people with pre-existent respiratory disease. This study was designed to assess the impact of the inorganic composition of particulate matter on 33 adult asthmatics respiratory functions in São Paulo city, Brazil. From May to July 2002, fine and coarse particulate matter fractions were collected and trace metals (Fe2+, Mn2+, Zn2+, Pb2+, Cu2+) and major ions (Na+, Mg2+, K+, Ca2+, NH4 +, Cl-, NO3-, SO42-) composition was determined in each aqueous-extract fraction by Atomic Absorption Spectrometry with Graphite Furnace (AAS-GF) and Ion Chromatography, …

The Acute-Phase Proteins Serum Amyloid A And C Reactive Protein In Transudates And Exudates, Paulo A. Lotufo

Paulo A Lotufo

The distinction between exudates and transudates is very important in the patient management. Here we evaluate whether the acute-phase protein serum amyloid A (SAA), in comparison with C reactive protein (CRP) and total protein (TP), can be useful in this discrimination. CRP, SAA, and TP were determined in 36 exudate samples (27 pleural and 9 ascitic) and in 12 transudates (9 pleural and 3 ascitic). CRP, SAA, and TP were measured. SAA present in the exudate corresponded to 10% of the amount found in serum, that is, the exudate/serum ratio (E/S) was 0.10±0.13. For comparison, the exudate/serum ratio for CRP …

Epidemiological Studies In The Information And Genomics Era: Experience Of The Clinical Genome Of Cancer Project In São Paulo, Brazil, V Wunsch, Jose Eluf-Neto, Paulo A. Lotufo, Marco A. Zago

Paulo A Lotufo

No abstract provided.

Guide To A Successful Pregnancy: A Resource Manual For Pregnant And Parenting Young Women In Las Vegas, Nevada Institute For Children's Research And Policy Reports

Nevada Institute for Children's Research and Policy Reports

A Guide to a Successful Pregnancy.

• Are you Pregnant? Taking a pregnancy test
• First steps of Pregnancy: Options of pregnancy, health plans, obtaining medical care such as a doctor
• Months 1, 2, 3: Maintaining a healthy diet, what you should stay away from, exercise, symptoms of danger, and normal symptoms of pregnancy
• Months 4, 5, 6: Following a routine, classes available during pregnancy, normal pregnancy symptoms
• Months 7, 8, 9: Following a routine, normal pregnancy symptoms
• Labor and Delivery: Symptoms of labor, symptoms of danger
• Parenting: Normal symptoms after birth, Routine to follow to return to normal state, Breast feeding …

Cervical Cancer Survival By Socioeconomic Status, Race/Ethnicity, And Place Of Residence In Texas, 1995–2001, Katherine S. Eggleston, Ann L. Coker, Melanie Williams, Guillermo Tortolero-Luna, Jeanne B. Martin, Susan R. Tortolero

CRVAW Faculty Journal Articles

Objective: The current study explored whether socioeconomic status (SES), race/ethnicity, and rural residence may be linked to poorer cervical cancer survival by stage at diagnosis.

Methods: Data from 7,237 cervical cancer cases reported to the Texas Cancer Registry from 1995–2001 were used to address the association by stage at diagnosis and cause of death. Zip code-level census data were used to classify residence and to develop a composite variable for SES. Multilevel Cox proportional hazards modeling was used to estimate hazard ratios

(HR) and 95% confidence intervals (CI).

Results: Late stage at diagnosis was a strong predictor …

Informed Consent In Hiv Prevention Trials: Report Of An International Workshop, C. Elizabeth Mcgrory, Barbara Friedland, Cynthia Woodsong, Kathleen M. Macqueen

HIV and AIDS

This report summarizes key themes and issues on informed consent in HIV prevention trials as part of an international workshop co-hosted by Population Council and Family Health International in May 2005.

Exploring Current Practices In Pediatric Arv Rollout And Integration With Early Childhood Programs In South Africa: A Rapid Situation Analysis, Desiree Michaels, Brian Eley, Lewis Ndhlovu, Naomi Rutenberg

HIV and AIDS

This Horizons program report describes the status of pediatric HIV treatment in selected sites in South Africa, identifies gaps in service delivery, and proposes recommendations for strengthening services and expanding children’s access to treatment. The study provides much needed information on critical issues of pediatric HIV care, especially regarding health service and contextual issues surrounding the expansion of access to treatment for HIV-infected children, and key factors that facilitate sustainability of treatment by young children. The aims of the study were to identify successful program strategies in pediatric HIV treatment in South Africa and to determine priority knowledge gaps to …

Abc Messages For Hiv Prevention In Kenya: Clarity And Confusion, Barriers And Facilitators, Julie Pulerwitz, Tiffany Lillie, Louis Apicella, Ann P. Mccauley, Tobey C. Nelson, Simon Ochieng, Peter Mwarogo, Karusa Kiragu, Edward Kunyanga

HIV and AIDS

The Horizons Program and FHI/IMPACT developed a collaborative research study to explore how adults and youth in Kenya define and perceive the ABC (abstinence/being faithful/consistent condom use) terms and behaviors. Additional objectives of the study were to identify attitudes and norms around the ABC behaviors that influence perceptions of them, and the role of important actors in transmitting messages about them. Findings highlight potential challenges in promoting each of the ABC behaviors, as well as some positive elements that can be built upon when developing programs. HIV prevention programs that incorporate ABC messages—both in Kenya and elsewhere—should consider a number …

Examining Adherence And Sexual Behavior Among Patients On Antiretroviral Therapy In India, Avina Sarna, Indrani Gupta, Sanjay Pujari, A.K. Sengar, Rajiv Garg, Ellen Weiss

HIV and AIDS

With increased availability of ART, HIV-positive individuals are living healthier lives and continuing or resuming sexual activity. However, optimism related to ART’s success in slowing disease progression, reducing viral load, and improving health status may lead to more risky sexual practices and a possible increase in transmission of infections. To determining the sexual behavior of HIV-positive persons on ART, the Horizons program, in collaboration with research partners in Delhi and Pune, conducted a study to assess current levels of adherence to ART among a sample of people living with HIV/AIDS, identify the factors that influence their adherence to treatment, and …

Reducing Aids-Related Stigma And Discrimination In Indian Hospitals, Vaishali Sharma Mahendra, Laelia Gilborn, Bitra George, Luke Samson, Rupa Mudoi, Sarita Jadav, Indrani Gupta, Shalini Bharat, Celine Daly

HIV and AIDS

People living with HIV/AIDS in India, as elsewhere, face stigma and discrimination in a variety of contexts. Research in India has shown that stigma and discrimination against HIV-positive people and those perceived to be infected are common in hospitals and act as barriers to seeking and receiving critical treatment and care services. Recognizing the need to move beyond documentation of the problem, three New Delhi hospitals; SHARAN, an Indian NGO; and the Horizons program, with support from the National AIDS Control Organisation (NACO), carried out an operations research project to develop and test responses to hospital-based stigma and discrimination against …

Promoting More Gender-Equitable Norms And Behaviors Among Young Men As An Hiv/Aids Prevention Strategy, Julie Pulerwitz, Gary Barker, Marcio Segundo, Marcos Nascimento

HIV and AIDS

The Population Council and the Promundo Institute studied the effectiveness of interventions in Brazil designed to change the attitudes of young men in relation to gender norms and reducing the risk of contracting HIV/STIs. One conclusion of the study was the recognition of the importance of engaging young people (men and women) in the issue of gender relations and the risks of HIV contamination. The results of the study indicate that addressing inequitable gender norms, particularly those that define masculinity, can be an important element of HIV prevention strategies. These findings suggest that group education interventions can successfully influence young …

Orphans And Vulnerable Youth In Bulawayo, Zimbabwe: An Exploratory Study Of Psychosocial Well-Being And Psychosocial Support, Laelia Gilborn, Louis Apicella, Jonathan Brakarsh, Linda Dube, Kyle Jemison, Mark Kluckow, Tricia Smith, Leslie M. Snider

HIV and AIDS

This Population Council Horizons report presents findings from an exploratory study by the Regional Psychosocial Support Initiative and Catholic Relief Services’ Support to Replicable, Innovative Village/Community-level Efforts Program of vulnerable youth living in and around Bulawayo, Zimbabwe. It describes their demographic characteristics, exposure to stress and trauma, and psychosocial well-being. The report also highlights the relationships between psychosocial well-being outcomes and exposure to stress and trauma, and the differences in psychosocial well-being between males and females, orphaned and nonorphaned youth, and younger and older adolescents. The report concludes with program and research implications.

Minimizing The Maxim Model? Interpreting The Sexual Body Rhetoric Of Teenage Moms Through Physical Education, Treena Orchard, J. Halas, J. Stark

Dr. Treena Orchard

No abstract provided.