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BACKGROUND To understand the consequences of driving cessation in older adults, the authors evaluated depression in former drivers compared with active drivers. METHODS Depression (as assessed using the Center for Epidemiological Studies Depression Scale), driving status, sociodemographic factors, health status, and cognitive function were evaluated for a(More)
The authors used observational job analysis as a conceptually based technique to measure stress factors unbiased by worker appraisal with 81 transit driving tasks on 27 transit lines. Stressor dimensions included work barriers that interfere with task performance due to poor technical-organizational design, time pressure, time binding (autonomy over time(More)
OBJECTIVE Research findings suggest that, in addition to hostility, social dominance-related variables may be related to morbidity and mortality. The purposes of the present study were to evaluate a) whether pressured social dominance (defined as a pattern of structured-interview-defined characteristics of verbal competition, immediateness of response, and(More)
PURPOSE To understand the driving behavior of older adults, this study examines self-reported reasons for driving limitation or avoidance. DESIGN AND METHODS Baseline interviews were conducted (n = 2,046) as part of a community-based study of aging and physical performance in persons aged 55 years or older in Sonoma, California. Twenty-one medical and(More)
Eighty-one observational work analyses were conducted to measure stressors independently of worker appraisal in the San Francisco transit system. On the basis of action regulation theory, stress factors were defined as hindrances for task performance due to poor work organization or technological design. Stressors included (a) work barriers, defined as(More)
Urban transit operators' medical symptoms and conditions exceed other occupational groups, resulting partly from working conditions. Medical outcomes among operators have an impact on the transit system, including on performance, work attendance, and medical costs. This is exacerbated by external economic and political pressures in which expected service(More)
OBJECTIVES To examine child characteristics (age, gender) and child care center environments (socioemotional quality, physical safety) that jointly predict injuries for preschool children. METHODS A two year prospective study of 360 preschool children, ages 2-6 years, was conducted in four urban child care centers. Composite scores for center quality and(More)
The market segmentation analysis for bicycle commuting can help identify distinct bicycle market segments and develop specific policies or strategies for increasing the bicycle usage in each segment. This study aims to use the approach of attitudinal market segmentation for identifying the potential markets of bicycle commuting. To achieve the research(More)
OBJECTIVES This report examines the role of (a) disease processes affecting vision, (b) reported troubles with vision, (c) physical symptoms affecting the eyes, and (d) objective measures in reported driving limitation due to problems with eyesight among older drivers. METHODS Data for this study (N = 1,840) were obtained from participants in a(More)