Trevor K. Rogers

Learn More
Previous measures of physical activity for epidemiologic studies were considered inadequate to meet the needs of a community-based health education trial. Therefore, new methods of quantifying the physical activity habits of communities were developed which are practical for large health surveys, provide information on the distribution of activity habits in(More)
BACKGROUND Recruitment, retention, and success in a worksite health promotion program was examined among various demographic groups of employees (n = 11,830) of the Dallas, Texas Independent School District. METHODS Enrolled employees (n = 3,873) were given a health screen consisting of health habit assessment, measurement of clinical variables, physical(More)
Indirect, biochemical measures of cigarette use are valuable in confirming smoking status in both cross-sectional and cessation studies. This study compares two such biochemical markers, expired-air carbon monoxide (CO) and plasma thiocyanate (SCN), in a representative population sample of 2,237 adults (ages 18-74) from the baseline survey of the Stanford(More)
BACKGROUND Poor U.K. lung cancer survival rates may, in part, be due to late diagnosis. OBJECTIVES To evaluate the effectiveness of a mixed-method community-based social marketing intervention on lung cancer diagnoses. METHODS A public awareness campaign in conjunction with brief intervention training in general practices was piloted in six localities(More)
Helicobacter pylori is accepted as an important factor in the pathogenesis of peptic ulcer disease. Infection is probably most commonly acquired in early life but there is still limited information on the prevalence or symptomatology of H. pylori infection in childhood. The aim of the present study was to establish the prevalence of H. pylori infection in a(More)
AIMS To assess the route to secondary care for patients with possible occupational asthma, and to document the duration of workrelated symptoms and referral times. METHODS Consecutive patients with suspected occupational asthma were recruited to a case series from six secondary care clinics with an interest in occupational asthma. Semi-structured(More)
OBJECTIVES To investigate the levels of agreement between expert respiratory physicians when making a diagnosis of occupational asthma. METHODS 19 cases of possible occupational asthma were identified as part of a larger national observational cohort. A case summary for each case was then circulated to 12 physicians, asking for a percentage likelihood,(More)
Methods of effective cardiovascular risk reduction that are suitable for use in clinical settings are needed. Several behavioral interventions were designed to be compatible with office-based medical practice, to be delivered by paraprofessional counselors, and to be of low intensity and low cost. Eighty-three hypercholesterolemic volunteers were assigned(More)
Finding an abnormality on a plain chest radiograph is usually the first definite evidence of a lung cancer, so this investigation is currently pivotal in the diagnosis of the disease. Although the National Institute for Clinical Excellence (NICE) has produced guidance on when a chest radiograph should be done for putative lung cancer presentations, cancer(More)