Handling Missing Values in Longitudinal Panel Data With Multiple Imputation

This article offers an applied review of key issues and methods for the analysis of longitudinal panel data in the presence of missing values. The authors consider the unique challenges associated with attrition (survey dropout), incomplete repeated measures, and unknown observations of time. Using simulated data based on 4 waves of the Marital Instability Over the Life Course Study (n = 2,034), they applied a fixed effect regression model and an event‐history analysis with time‐varying covariates. They then compared results for analyses with nonimputed missing data and with imputed data both in long and in wide structures. Imputation produced improved estimates in the event‐history analysis but only modest improvements in the estimates and standard errors of the fixed effects analysis. Factors responsible for differences in the value of imputation are examined, and recommendations for handling missing values in panel data are presented.     

The Challenges in Developing an Online Applied Statistics Program: Lessons Learned at Penn State University

Numerous professional fields have an increasing need for individuals trained in statistics and other quantitative analysis techniques. Today there exists great potential to fulfill this need by providing opportunities through online learning. However, to provide a high-quality education for returning adult professionals seeking advanced degrees in applied statistics online, many challenges need to be overcome. Based on our experience developing Penn State University’s online program in applied statistics, we discuss the evolution of the program’s curriculum, recruitment and development of online faculty, and meeting the requirements of students as important areas that require consideration in the development of an online program. We also highlight program evaluation strategies employed to ensure innovation and improvement in online education as cornerstones to a program’s success.     

Introduction: “Where Would I Be Without You”

Where Would I Be Without You, the first and only poetry recording from Olivia Records, offers a glimpse into the powerful friendship and artistic collaboration between poets Pat Parker and Judy Grahn. Grahn and Parker met in Oakland, California in 1970, beginning an artistic collaboration and a powerful friendship that endured through Parker's death in 1989. Grahn's and Parker's work spread the good news of poetry; they were integral to how we lesbians imagined our voices in the world. The articles in this special issue reconsider and pay tribute to their work.     

Original and Ongoing Dispossessions: Settler Capitalism and Indigenous Resistance in British Columbia

This paper draws on archival research and theoretical work to articulate the specific histories, processes, and structures of primitive accumulation in British Columbia. Such processes of accumulation appear differently here than in the comparably more well-theorized contexts of imperial colonialisms. As we highlight the agents and infrastructures of dispossession, our research also aims to foreground the importance of agents and infrastructures of resistance. Different dispossessions generate different antagonisms, and we argue that Indigenous subjects are situated antagonistically to capital not only as laborers partially or wholly subsumed into capitalist social relations, but as Indigenous peoples as such, whose Indigeneity has been ‘in the way’ of development from the 1850s onward. Private property requires before all else the deterritorialization of those whose relations with the land do not revolve around its commodification. Violence against Indigenous nations, and especially Indigenous women, is not incidental to capitalist development but is a prerequisite to capitalist subsumption in the settler-colonial context. In requiring the death of either Indigeneity or the person, capital constitutes Indigenous struggle as an antagonist, interrupting both the subsumption of labor and the circulation of capital (even as such struggles may also self-constitute themselves in a variety of ways).     

Health and welfare of immigrants and access to services in Australia

The main issues in relation to the provision of health and social welfare services for migrants in Australia are: (a) to ensure access and equity; (b) concern about the relatively high proportions of some groups from specific birthplaces requiring support; and (c) the complexity and costs of ethnically specific services. This article focuses on the major pensions and benefits paid by the Department of Social Security, particularly the age pension and unemployment benefit. It also examines the interrelationship between mortality, morbidity, private health insurance, use of health services and the proportions on health-related pensions. Linked with these issues is the debate about an appropriate level of immigration when the unemployment rate is high, as in the current recession, and when new arrivals have little prospect of finding a job. A second major concern is the cost of caring for elderly immigrant parents who have come to Australia under the family reunion program.     

Feeding Patterns and Emotional Care in Breastfed Infants

A number of studies have suggested breastfed infants have improved bonding and attachment or cognitive development outcomes. However, mechanisms by which these differences might develop are poorly understood. We used maternal time use data to examine whether exclusively breastfeeding mothers spend more time in close interactive behaviors with their infants than mothers who have commenced or completed weaning. Mothers (188) participating in a time use survey recorded infant feeding activities for 24 h over a 7 day period using an electronic device. Tracking was conducted at 3, 6, and 9 months postpartum. Data was collected for maternal activities including infant feeding and time spent in emotional care. The mothers of exclusively breastfed infants aged 3–6 months fed them frequently and total time spent in breastfeeding averaged around 17 h a week. Maternal time spent in emotional care was also substantial, and found to correlate positively with time spent breastfeeding. Exclusively breastfed infants received greatest amounts of emotional care from their mother, and exclusively formula fed infants the least. Mixed fed infants received more emotional care time than formula fed infants, but less than fully breastfed infants. These findings may help explain the differential cognitive developmental outcomes reported in the medical literature for breastfed and non breastfed infants.     

Population statistics and population registration in Norway. Part 21

The second part of this paper deals with the legal basis of medico-statistical data, and shows the type of report made by Medical Officers of Health and by private practitioners to the Norwegian Central Statistical Office. These reports deal with infectious diseases, with certain types of mental disease, and certain special diseases like tuberculosis. The system of classifying causes of death is also explained. Other sections deal with hospital and morbidity statistics and statistics obtained from recruiting authorities.     

Coffee intake,health-related quality of life,and associated factors of overactive bladder in older Korean women living in rural South Korea

ABSTRACT

Overactive bladder (OAB) is a common health problem in older women. The aim of the study was to investigate coffee consumption, health-related quality of life (HRQOL), and associated factors of OAB in older Korean women living in rural South Korea. A total of 248 women aged 65 years and older participated in this study. Chi-square tests, t-tests, and multivariable logistic regressions were performed. The means of coffee consumption between OAB and non-OAB groups were not significantly different. Women with OAB showed significantly lower HRQOL than women with stress urinary incontinence only. OAB was associated with high body mass index and poor health status.