Control‐based imputation for sensitivity analyses in informative censoring for recurrent event data

In clinical trials, missing data commonly arise through nonadherence to the randomized treatment or to study procedure. For trials in which recurrent event endpoints are of interests, conventional analyses using the proportional intensity model or the count model assume that the data are missing at random, which cannot be tested using the observed data alone. Thus, sensitivity analyses are recommended. We implement the control‐based multiple imputation as sensitivity analyses for the recurrent event data. We model the recurrent event using a piecewise exponential proportional intensity model with frailty and sample the parameters from the posterior distribution. We impute the number of events after dropped out and correct the variance estimation using a bootstrap procedure. We apply the method to an application of sitagliptin study.     

Gender,Occupation, and Promotion to Management in the Nonprofit Sector

Although one can assume the work values within nonprofit organizations promote gender equality in promotion decisions, there is preliminary evidence that in the nonprofit sector women are underrepresented in higher management positions. Whereas the mechanisms resulting in underrepresentation of women in management have been studied extensively in for‐profit organizations, little is known about these mechanisms in nonprofit organizations. Is gender in nonprofit organizations—even given the underlying values of these organizations—an impediment to attaining a management position? This article presents a case study of employment patterns within the Dutch section of the humanitarian INGO Médecins Sans Frontières and focuses particularly on the effects of gender and occupation on transitions to management. The case study organization represents a “critical case” because the nature of this organization's work environment can be expected to result in a relatively high percentage of women in management. Employee records (N = 2,247) were analyzed using event history models. We found that women made the transition to management less rapidly than men, even when controlling for factors like age, previous work experience, and nationality. However, gender differences were completely explained by occupation. Those employees in female‐dominated occupations (in this case, medical personnel such as nurses) had a lower promotion‐to‐management rate than those in male‐dominated occupations (in this case, nonmedical personnel such as financial officers), irrespective of their gender. This case study highlights the importance to nonprofit management research of studying the effects of occupational sex segregation on promotion.     

A cautionary note about assessing the fit of logistic regression models

Logistic regression is a popular method of relating a binary response to one or more potential covariables or risk factors. In 1980, Hosmer and Lemeshow proposed a method for assessing the goodness of fit of logistic regression models. This test is based on a chi-squared statistic that compares the observed and expected cell frequencies in the 2 g table, as found by sorting the observations by predicted probabilities and forming g groups. We have noted that the test may be sensitive to situations where there are low expected cell frequencies. Further, several commonly used statistical packages apply the Hosmer-Lemeshow test, but do so in diff erent ways, and none of the packages we considered alerted the user to the potential difficulty with low expected cell frequencies. An alternative goodness-of-fit test is illustrated which seems to off er an advantage over the popular Hosmer-Lemeshow test, by reducing the likelihood of small expected counts and, potentially, sharpening the interpretation. An example is provided which demonstrates these ideas.     

Tragic Choices in Humanitarian Aid: A Framework of Organizational Determinants of NGO Decision Making

Humanitarian NGOs face difficult choices about whom to help and whom not on a daily basis. The research question in this article is how humanitarian NGOs make these difficult decisions and why in a particular way. March’s study on consequential and appropriate decision-making processes is used to analyze the nature and course of NGO decision making. Since March’s two models are often explicitly or implicitly linked to certain types of organizational settings—as reflected in an organization’s formal structure, compliance and coordination mechanisms—this article particularly zooms in on the relationship between NGO decision-making processes and these settings. The theoretical framework is illustrated and discussed by means of an exploratory comparative case study of two international humanitarian NGOs: Médecins Sans Frontières Holland (MSF Holland) and Acting with Churches Netherlands (ACT Netherlands).     

Breaking the in‐group out‐group: shifting boundaries in transnational partner choice processes of individuals of Moroccan,Tunisian, Algerian,Turkish, Punjabi Sikh,Pakistani and Albanian descent in Belgium

The ongoing popularity in some second and third generation migrants in Western Europe of marrying a partner from the countries of origin of their (grand)parents is considered to be problematic for micro and macro level societal integration of some migrant populations. Partner choice and marriage practices in migrant communities are problematized in public, media and political discourses by discriminating them from marriage practices in the ‘native’ population on the basis of three related dichotomies: (1) agency versus structure, (2) us versus them and (3) romantic versus instrumental marriage intentions dichotomies. By means of in‐depth qualitative research methodologies on the partner choice processes of women and men of Turkish, Moroccan, Algerian, Tunisian, Punjabi Sikh, Pakistani and Albanian descent in Belgium and an intersectional theoretical approach, this article aims to deconstruct popular and simplifying dichotomous representations of partner choice processes in these migrant populations. Our study reveals how religious, gender and social class boundaries are stretched to meet personal/individual desires and preferences. Individuals do experience social restrictions when it concerns social group boundaries and the potential partners that they can look for. At the same time individuals are never fully determined by their social environment, they creatively develop strategies to by‐pass certain restrictions and to some extent are able to meet their personal needs while being sensitive to the desires of their social environment.     

Civil Society Organizations: the Site of Legitimizing the Common Good—a Literature Review

VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - The concept of legitimacy—i.e., being regarded as “lawful, admissible, and justified” (Edwards in NGO...