Driver mortality in paired side impact collisions due to incompatible vehicle types.

Using a matched case control design, this study measured the mortality associated with paired passenger car-sport utility vehicle side impact ('T-bone') collisions using FARS data. Survival versus fatal outcome within the matched crash pairs was measured with matched pair odds ratios. Conditional logistic regression adjusted for multiple effects. Overall, passenger car drivers experienced greater mortality than did SUV drivers, regardless if they were in the struck or striking vehicle (odds ratio: 10.0; 95% confidence interval: 7.9, 12.5). Differential mortality persisted after adjustment for confounders. Efforts should be sought to improve passenger car side impact crashworthiness and to reduce SUV aggressivity.

Mortality reduction with air bag and seat belt use in head-on passenger car collisions.

To assess the efficacy of occupant protection systems, the authors measured the mortality reduction associated with air bag deployment and seat belt use for drivers involved in head-on passenger car collisions in the United States. They used a matched case-control design of all head-on collisions involving two passenger cars reported to the Fatality Analysis Reporting System in 1992-1997, and driver mortality differences between the paired crash vehicles for air bag deployment and seat belt use were measured with matched-pair odds ratios. Conditional logistic regression was used to adjust for multiple effects. There were 9,859 head-on collisions involving 19,718 passenger cars and drivers. Air bag deployment reduced mortality 63% (crude odds ratio (OR) = 0.37, 95% confidence interval (CI): 0.32, 0.42), while lap-shoulder belt use reduced mortality 72% (OR = 0.28, 95% CI: 0.25, 0.31). In a conditional logistic model that adjusted for vehicle (rollover, weight, age) and driver (age, sex) factors, air bags (OR = 0.71, 95% CI: 0.58, 0.87) and any combination of seat belts (OR = 0.25, 95% CI: 0.22, 0.29) were both associated with reduced mortality. Combined air bag and seat belt use reduced mortality by more than 80% (OR = 0.18, 95% CI: 0.13, 0.25). Thus, this study confirms the independent effect of air bags and seat belts in reducing mortality.

All that you can be: stereotyping of self and others in a military context.

The authors tested the shifting standards model (M. Biernat, M. Manis, & T. E. Nelson, 1991) as it applies to sex- and race-based stereotyping of self and others in the military. U. S. Army officers attending a leadership training course made judgments of their own and their groupmates' leadership competence at 3 time points over a 9-week period. We examined the effects of officer sex and race on both subjective (rating) and objective/common-rule (ranking/Q-sort) evaluations. Stereotyping generally increased with time, and in accordance with the shifting standards model, pro-male judgment bias was more evident in rankings than in ratings, particularly for White targets. Self-judgments were also affected by sex-based shifting standards, particularly in workgroups containing a single ("solo") woman. Differential standard use on the basis of race was less apparent, a finding attributed to the Army's explicit invocation against the use of differential race-based standards.

Farm-related injury mortality in New Mexico, 1980-91.

To compare the epidemiology of farm with non-farm occupational injury deaths, we reviewed state medical examiner data for all occupational injury deaths in New Mexico from 1980 to 1991. We identified 53 farm-related injury deaths for a rate of 21.3 per 100,000 worker-years. Farm workers were four times more likely than non-farm workers to die from occupational injury. American Indians had the highest farm injury death rate. Farm decedents were older than non-farm decedents (t498 = 6.29, p < 0.0001). Half of the farm decedents were 50 years of age or older; one-third were 60 years of age or older. Crush injuries accounted for half of all farm injury deaths including 18 of 23 motor vehicle deaths, half of these involving a tractor rollover. One in six farm injury deaths were from electrocution: one in five involved alcohol. Our study indicates that New Mexico has high farm-related injury mortality related to tractor use, alcohol intoxication, farm animals, and exposure to electricity. American Indians and older males are especially susceptible to these factors.

Physical illness stigma and social rejection.

We use the stigma of illness as a model for uncovering which dimensions of stigmas are critical for causing social rejection. Subjects responded to 'medical case histories' representing 66 illnesses, rating the illness on a variety of dimensions (e.g. contagious/not contagious, common/rare), and a measure of social rejection. Regression analysis revealed that two dimensions predicted rejection: the severity of the illness, and whether the illness was behaviourally caused (multiple R = .68). In a second experiment, subjects responded to a case history of a fictitious disease that was either mild or severe, and was either behaviourally caused or not. Behavioural causality and severity emerged as reliable, independent sources of rejection. Diseases perceived to be severe or under personal control are most likely to lead to social rejection.

Prejudice against fat people: ideology and self-interest.

Prejudice against fat people was compared with symbolic racism. An anti-fat attitudes questionnaire was developed and used in several studies testing the notion that antipathy toward fat people is part of an "ideology of blame." Three commonalities between antifat attitudes and racism were explored: (a) the association between values, beliefs, and the rejection of a stigmatized group, (b) the old-fashioned antipathy toward deviance of many sorts, and (c) the lack of self-interest in out-group antipathy. Parallels were found on all 3 dimensions. No in-group bias was shown by fat people. Fatism appears to behave much like symbolic racism, but with less of the negative social desirability of racism.

The influence of perceived risk of exposure to human immunodeficiency virus on medical students' planned specialty choices.

The purpose of this report is to determine the influence of the acquired immunodeficiency syndrome (AIDS) epidemic on medical students' training and career plans through a prospective, anonymous self-administered survey of 10 Likert-scaled (1 strongly agree to 5 strongly disagree) responses to statements assessing attitude toward patients with human immunodeficiency virus (HIV), adequacy of knowledge and experience with HIV, and influence of HIV on career choices. The study was done at a major AIDS referral university teaching hospital. The participants were first- through fourth-year medical students in spring 1990. A 72% (of 451 students) response revealed that both surgery and emergency medicine were perceived as high risk of exposure specialties. Students indicated an overall willingness to care for HIV-positive patients (mean, 2.54) and a general adequacy of knowledge and experience (mean 2.54). The AIDS epidemic has had little influence for training, future career, and practice locations (mean, 4.06). Responses differed by class year. The later class years were more willing to care for HIV patients (P < .001) and indicated more knowledge and experience with HIV (P < .001). Influence on career, training and practice location choices were without class trend. In contrast to some studies, this group of medical students had relatively positive attitudes toward patients with HIV and were not particularly influenced by the AIDS epidemic regarding career choices.

Measuring life event stress in the lives of college students: the Undergraduate Stress Questionnaire (USQ).

We describe the development of the Undergraduate Stress Questionnaire (USQ), a life events checklist designed to measure stress among undergraduates. Several studies demonstrate the USQ's validity. The USQ correlates positively with physical symptoms and negatively with mood. Students rated the USQ as the most complete and accurate of four different life events questionnaires. In a panel study, the USQ closely tracked subjective reports of stress, both during the term and finals week. The USQ predicted symptoms more reliably than three other stress measures, controlling for negative affect. Students waiting in the college infirmary score higher on the USQ than students socializing on campus. Finally, we compare the checklist format to subjective scaling, and show the superiority of the checklist version. We discuss the usefulness of the USQ in terms of validity, representativeness, adaptability, brevity, and low confounding with negative affect.

Social contagion of binge eating.

A social psychological account of the acquisition of binge eating, analogous to the classic social psychological work, "Social Pressures in Informal Groups" (Festinger, Schachter, & Back, 1950), is suggested and tested in two college sororities. In these sororities, clear evidence of group norms about appropriate binge-eating behavior was found; in one sorority, the more one binged, the more popular one was. In the other, popularity was associated with binging the right amount: Those who binged too much or too little were less popular than those who binged at the mean. Evidence of social pressures to binge eat were found as well. By the end of the academic year, a sorority member's binge eating could be predicted from the binge-eating level of her friends (average r = .31). As friendship groups grew more cohesive, a sorority member's binge eating grew more and more like that of her friends (average r = .35). The parsimony of a social psychological account of the acquisition of binge eating behavior is shown. I argue that there is no great mystery to how bulimia has become such a serious problem for today's women. Binge eating seems to be an acquired pattern of behavior, perhaps through modeling, and appears to be learned much like any other set of behaviors. Like other behaviors, it is under substantial social control.