Ann C Klassen

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Spatial scan statistics are widely used for count data to detect geographical disease clusters of high or low incidence, mortality or prevalence and to evaluate their statistical significance. Some data are ordinal or continuous in nature, however, so that it is necessary to dichotomize the data to use a traditional scan statistic for count data. There is(More)
Obesity results from a complex interaction between diet, physical activity, and the environment. The built environment encompasses a range of physical and social elements that make up the structure of a community and may influence obesity. This review summarizes existing empirical research relating the built environment to obesity. The Medline, PsychInfo,(More)
OBJECTIVES We used population-based survey data to estimate the prevalence of self-reported racism across racial/ethnic groups and to evaluate the association between self-reported racism and cancer-related health behaviors. METHODS We used cross-sectional data from the 2003 California Health Interview Survey. Questions measured self-reported racism in(More)
BACKGROUND AND PURPOSE This study examined the effectiveness of a slide/audio community education program aimed at increasing knowledge of stroke risk factors, stroke warning signs, and action needed when stroke warning signs occur. The program targets audiences at higher risk for stroke, especially individuals who are black or >50 years of age. METHODS(More)
BACKGROUND We assessed the American Society of Anesthesiologists' (ASA) class, as a measure of comorbidity in comparison to the commonly used Charlson index for prognostic ability in a HNCA population. METHODS Proportional hazards methods were applied to head and neck cancer patients whose treatment included surgery by the Johns Hopkins Otolaryngology(More)
INTRODUCTION Breast cancer in women has historically been seen as a "cancer of affluence" and there is a well-documented higher incidence among women of higher social class, as well as in societies with higher resources. However, the relationship between social class and breast cancer disease characteristics, especially those associated with poorer(More)
BACKGROUND Many Korean-American women (KAW) are unaware of the importance of regular cancer screening. This research estimates rates and examines predictors of regular cervical cancer screening among KAW. METHODS Face-to-face surveys were conducted with 459 KAW residing in Maryland. Study participants were recruited through Korean churches and senior(More)
BACKGROUND Low- and no-cost mammography programs have become a widespread strategy to increase access to breast cancer screening in low-income populations. However, rigorous evaluations of who remains unscreened in communities with these programs are lacking. We conducted a case-control study of African American older women in East Baltimore, Maryland,(More)
BACKGROUND Missing data in cancer surveillance records are common; however, little information exists on the types of cases most likely to have missing data, or how missing data influence research or policy. Two clinical elements often missing in surveillance data are histologic grade and stage of disease. Missing data are either not clinically ascertained(More)