Women's Health Commons^™

Association Of Birth Weight And Preterm Birth With Subsequent Risk For Hypertension In Women From The Women’S Health Initiative, Christian P. Daniele

Masters Theses

Hypertension is a chronic disease with an estimated prevalence of nearly 50% in US adults. In addition to sociodemographic and lifestyle factors, evidence suggests that in utero and early life exposures may contribute to life-long risk of hypertension. This study aimed to investigate the potential associations between an individual’s birthweight and preterm birth status with their risk for hypertension in the Women’s Health Initiative (WHI) cohort. WHI is a large, multi-racial cohort of postmenopausal women. At study entry, birthweight and preterm birth status were self-reported by category (< 6 lbs., 6-7 lbs. 15 oz., 8-9 lbs. 15 oz., or ≥ 10 lbs.; ≥ 4 weeks premature or full term). Baseline and incident hypertension status were self-reported; mean systolic blood pressure, diastolic blood pressure, and 30-second pulse were also recorded at baseline by trained study staff. Linear, logistic, and Cox-proportional hazards regression models were used to generate crude and adjusted beta estimates, odds ratios, and hazards ratios, respectively. After adjusting for demographic and lifestyle factors, we found that participants born at a low birthweight had a higher mean systolic blood pressure than participants born at a normal birthweight and were at increased risk for both baseline and incident hypertension. Women born at a higher birthweight had a lower mean systolic blood pressure and were at lower risk for baseline and incident hypertension. When compared to participants born full term, participants born preterm were at increased risk for baseline and incident hypertension. These results support current research on early life exposures and health risks later in life. Long term follow-up or targeted counseling may be required for individuals born prematurely or at low birthweights to prevent and treat hypertension and associated cardiovascular outcomes.

Birthweight And Risk Of Autoimmune And Thyroid Conditions Within The Women’S Health Initiative, Brian C. Monahan

Masters Theses

Autoimmune and thyroid conditions account for a substantial proportion of the morbidity and mortality experienced in the United States, affecting >40 million Americans combined. Co-occurrence of both an autoimmune and thyroid condition is also likely, particularly among women. Epidemiologic studies on both sets of conditions have examined many risk factors, including demographic, lifestyle, genetic, and environmental risk factors. However, one area which has been neglected is the effect of early life exposures on the development of autoimmune and thyroid conditions. To investigate the potential association between an individual’s birth weight (by category;in uteroand early childhood, extending the hypothesis to include …

Impact Of Parity On Gait Biomechanics, Bekah P. Stein

Masters Theses

Background: Symptomatic knee osteoarthritis (OA) is an incurable condition that affects nearly 50% of adults, and women are twice as likely as men to develop OA. Throughout pregnancy, women experience large changes in morphology and gait mechanics, as well as changes in joint loading. It is possible these adaptations could cause lasting changes postpartum, which may potentially contribute to initiation of OA, thereby increasing the overall risk of OA for women.

Purpose: This exploratory study looked to identify differences between lower limb gait mechanics of healthy nulliparous women and healthy parous women.

Methods: 28 healthy female participants (14 parous, 14 …

Estimating Age-Specific Contraceptive Use For Spacing Of Childbirth For All Countries In Sub-Saharan Africa From 1985 To 2030 Using A Bayesian Hierarchical Time Series Model, Gregory Guranich

Masters Theses

Contraceptive usage for spacing of childbirth is an important indicator for understanding family planning practices as well as fertility transitions. Fertility transition are especially important in sub-Saharan Africa where fertility remains high in many countries. However, estimates and short-term projections are generally not available for countries in this region. We developed a Bayesian hierarchical time series model to estimate and project usage of contraceptives for spacing by 5-year age groups for all countries in sub-Saharan Africa for the years 1985-2030. Estimating country-age-year specific usage is challenging due to limited data availability. We use Bayesian hierarchical models to share information across …

Antipsychotic Drug Use And Postmenopausal Breast Cancer Risk In The Women’S Health Initiative (Whi): A Prospective Cohort Study, Anna George

Masters Theses

Breast cancer is the most prevalent form of cancer and the second leading cause of mortality, affecting 1 in 9 women in the United States. Recent studies have shown that antipsychotic drug use is associated with increased prolactin levels, which, in turn, is associated with increased risk of breast cancer. However, studies of the association between antipsychotic drug use and the risk of breast cancer are sparse and have largely been conducted in homogenous populations. Therefore, we evaluated this relationship in postmenopausal women (N = 119 524) in a diverse population of the Women’s Health Initiative (WHI) cohort. Antipsychotic drug …

Factors Associated With Rapid Repeat Pregnancy Among Women In A Healthy Start Program In Kent County, Michigan, Sarah Jane Schmidt

Masters Theses

Strong Beginnings (SB) is a federal Healthy Start Program aiming to improve the health and well-being of black and Hispanic families by promoting racial equity and eliminating racial disparities in birth outcomes, including rapid repeat pregnancy (secondary pregnancy within 18 months of index birth). To better prevent the occurrence of rapid repeat pregnancy (RRP), this study explores individual, social, and environmental factors associated with RRP. De-identified data for this study included information from SB, the Maternal Infant Health Program, Medicaid claims, and birth certificates. The sample includes women enrolled in SB with an index birth between 2013 and 2015. Chi-square …

Association Of Follicle-Stimulating Hormone And Depression And Depressive Symptoms In Older Postmenopausal Women, Dana Fritz

Masters Theses

Worldwide, between 5 and 18% of postmenopausal women experience depression. While the associations of estrogens with depression have been researched extensively, relations with other postmenopausal hormones remain unclear. We evaluated the association of follicle stimulating hormone (FSH) levels with prevalent depression the Kuopio Ischaemic Heart Disease Risk Factor Study (n = 588). Study participants were postmenopausal women aged 53 to 73 years and not using hormone therapy at enrollment (1998-2001). FSH was measured by radioimmuno-assays. Depression symptoms were measured using a scale based on DSM-III criteria (score range = 0-12), with a score ≥5 indicative of probable depression. We assessed …

A Comparison Of Techniques For Handling Missing Data In Longitudinal Studies, Alexander R. Bogdan

Masters Theses

Missing data are a common problem in virtually all epidemiological research, especially when conducting longitudinal studies. In these settings, clinicians may collect biological samples to analyze changes in biomarkers, which often do not conform to parametric distributions and may be censored due to limits of detection. Using complete data from the BioCycle Study (2005-2007), which followed 259 premenopausal women over two menstrual cycles, we compared four techniques for handling missing biomarker data with non-Normal distributions. We imposed increasing degrees of missing data on two non-Normally distributed biomarkers under conditions of missing completely at random, missing at random, and missing not …

Identifying Menstrual Symptom Patterns In Young Women Using Factor And Cluster Analysis, Felicia A. Quintana-Zinn

Masters Theses

Approximately 80% of reproductive age women experience physical or emotional symptoms prior to onset of menses. Of these women, approximately 20% experience symptoms severe enough to interfere with social functioning and life activities and meet criteria for premenstrual syndrome (PMS). More than 100 different symptoms are associated with PMS, the most common of which include breast tenderness, headache, anger, and depression. Symptom groupings tend to be stable within an individual but can vary distinctly between women. Potential differences in the etiology of symptoms suggest that PMS should not be considered a single condition in research or clinical studies, but rather …

The Effects Of Ovarian Hormones And Exercise On Gene Markers Of Cardiac Dysfunction, Anisha S. Patel

Masters Theses

Heart disease is the leading cause of death in women in the United States. Premenopausal women appear to have better cardiac function and lower risk of heart disease compared to male postmenopausal female counterparts. Ovarian hormone loss influences blood pressure homeostasis and causes systemic inflammation, which may result in chronic stress on the heart. Two key physiological changes in cardiac dysfunction are reemergence of the fetal gene pattern and myocardial remodeling. Physical activity has been linked to improved cardiac function. The purpose of this study was to investigate the effects of ovariectomy on early markers of cardiac dysfunction and fibrosis …

Parents' Gender Ideology And Gendered Behavior As Predictors Of Children's Gender-Role Attitudes: A Longitudinal Exploration, Hillary Paul Halpern

Masters Theses

This longitudinal study examined the association between parents’ early and concurrent gender ideology and gendered behaviors and their children’s gender-role attitudes at age six. Specifically, parents' global beliefs about women's and men's "rightful" roles in society, as well as their work preferences for mothers, were considered in relation to the gender-role attitudes held by their first-graders. In addition, parents’ gendered behaviors, including their division of household and childcare tasks, division of paid work hours, and job traditionality were examined as predictors of children’s gender-role attitudes. Based on previous research, it was hypothesized parents’ early and concurrent behavior and ideology would …

Coffee And Tea Consumption And The Risk Of Lung Cancer In A Population Of Postmenopausal Women, Abigail Santos

Masters Theses

Lung cancer has been the leading cause of cancer death in women for
the past three decades. Although smoking is the most important risk
factor for lung cancer, not all lung cancer deaths in American women
are attributed to smoking and the role of dietary exposures remain
unclear.In particular, the effect of coffee consumption and tea
consumption on lung cancer risk remains inconclusive. Therefore we
assessed these associations prospectively in 83,777 women between the
ages of 50-79 who did not have a previous history of cancer. Daily
coffee and tea consumption (cups/d) were assessed via a baseline
questionnaire while the …

The Energy Expenditure And Feasibility Of Two Prenatal Yoga Programs, Doree Lynn Gardner

Masters Theses

Purpose: To determine the energy expenditure and feasibility of two different DVD-­‐ based prenatal yoga programs (static yoga practice and vinyasa practice). Methods: Participants were 25 women in their second trimester (13-­‐28 weeks) who werescreened for pregnancy-­‐related risk factors. The two DVDs used were “Prenatal Yoga with Shiva Rea” (DVD A) which is a static yoga practice, and “Jennifer Wolfes Prenatal Vinyasa Yoga” (DVD B) which is a flow yoga practice. Both DVDs were approximately 50-­‐55 minutes, and included three phases (warm up, main, cool down). Each subject completed both prenatal DVD routines approximately two weeks apart. The …

Selling Life To Abortion-Seekers: A Content Analysis Of Passive And Active Persuasion In Crisis Pregnancy Center Marketing, Alexander Kocman

Masters Theses

For supporters of the pro-life cause, crisis pregnancy centers (or CPC's) have become the "darlings of the movement," according to the New York Times (Belluck, 2013), offering women with unplanned pregnancies free advice, information, classes, childcare, and needed supplies. For abortion advocates, such establishments are intended to seduce vulnerable abortion-seekers into a situation where they will be counseled out of an abortion and possibly even proselytized. Yet for as much controversy as exists in the news media, medical community, and legal realm about CPC's, there is an unsettling lack of understanding of how--and why--CPC's market themselves the way they do. …

A Comparison Between Physiological And Perceived Exertion During Maximal And Submaximal Treadmill Exercise At Three Menstrual Cycle Phases, Kathleen M. Mccune

Masters Theses

The purpose of this study was to investigate the differences in physiological and subjective perceived exertion levels at maximal and submaximal treadmill exercise between three phases of the menstrual cycle in eumennorheic women.

Nine females of varying fitness levels were subjects in the study. None of the subjects were using oral contraception or hormone altering medications at the time of the study.

The subjects performed three separate maximal graded exercise tests (GXT) using the Balke protocol. During each GXT, oxygen uptake (VO₂), heart rate (HR), blood pressure (BP), respiratory quotient (RQ), rate of perceived exertion, and total time …