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A Sibling Case-Control Study Of Maternal Prenatal Body Mass Index As A Risk Factor For Autism Spectrum Disorder, Ruth Ann Hendrix Jan 2011

A Sibling Case-Control Study Of Maternal Prenatal Body Mass Index As A Risk Factor For Autism Spectrum Disorder, Ruth Ann Hendrix

Walden Dissertations and Doctoral Studies

The prevalence of autism spectrum disorder (ASD) is estimated to be one in every 150 births. While both genetic and postpartum environmental exposure have been linked to ASD, prenatal maternal weight has not been investigated. The objective of the study is to assess whether overweight or obesity at pregnancy is an important risk factor for the diagnosis of ASD in offspring. A case-control study was designed to answer this question using the public health ecosocial theory. The study population consisted of 70 mothers, who were recruited via the Internet using the viral expansion loop. Multiple logistic regression analysis was used …


Spirituality And Depression In Parents With Children In Oncology Or Hematology Treatment, Kurt D. Soell Jan 2011

Spirituality And Depression In Parents With Children In Oncology Or Hematology Treatment, Kurt D. Soell

Walden Dissertations and Doctoral Studies

The psychological burden of cancer treatment affects not only child patients but also their parents. There is extensive literature on the positive influence of spirituality on the cancer patient. But there is a gap in the literature on the potential healing influence of spirituality on the parent of the cancer or hematology patient. The purpose of this study was to examine the relationship between spirituality and parents' levels of depression and anxiety during their child's hematological or oncology treatment. Using the transtheoretical model of change, a purposive sample of 48 parents of children undergoing cancer or hematology treatment completed a …


Effect Of Clinical Laboratory Practitioner Licensing On Wages, Mary Hotaling Jan 2011

Effect Of Clinical Laboratory Practitioner Licensing On Wages, Mary Hotaling

Walden Dissertations and Doctoral Studies

Professional licensing directly affects about 29% of U.S. workers and is considered a primary means to establish and maintain health care practitioner competence. Clinical laboratory practitioner licensing was largely ignored in the literature with only 2 studies 30 years apart that provided conflicting conclusions regarding wage effects. This research provided the first study of clinical laboratory practitioner licensing effects on wages after controlling for human capital and individual characteristics wage determinants. This nonexperimental correlational study extended the literature on licensing effects on wages, including women's wages and professions not uniformly licensed across 50 states. The theoretical foundation relied on the …


Differences In Breast Cancer Tumor Size, Stage, And Survival By Socioeconomic Position In Young Women, Julie Maureen Tomaska Jan 2011

Differences In Breast Cancer Tumor Size, Stage, And Survival By Socioeconomic Position In Young Women, Julie Maureen Tomaska

Walden Dissertations and Doctoral Studies

Although the incidence of breast cancer in women under 40 years of age is somewhat rare, young women tend to present with cancer that is more advanced and with poorer prognostic characteristics. This research will be important to providers, women and their families and those seeking to clarify screening guidelines. The purpose of this quantitative, retrospective, cohort study was to evaluate differences in prognostic characteristics by socioeconomic position (SIP). The cohort was comprised of females aged 18 to 39 with a primary diagnosis of breast cancer. Data were obtained from the Surveillance, Epidemiology and End Results registry for all primary …


Assessing Doppler-Derived Pressure Gradients And Liver Echogenicity To Predict Liver Disease, Joy D. Guthrie Jan 2011

Assessing Doppler-Derived Pressure Gradients And Liver Echogenicity To Predict Liver Disease, Joy D. Guthrie

Walden Dissertations and Doctoral Studies

Liver disease causes an estimated 36,000 deaths in the United States each year. Currently, to detect liver disease, an invasive biopsy is required. Other, less invasive diagnostic alternatives are needed. The purpose of this study was to assess the efficacy of a modified form of sonographic screening, including portal, hepatic, and splenic venous pressure, hepatic venous waveform analysis, portal vein diameter, and echogenicity of liver parenchyma in predicting liver disease. The study was based on conversion of a velocity measurement to a pressure gradient, allowing a fluid comparison between known catheterization venous pressures and sonographic Doppler-derived pressure gradients. This study …