Ashley O Coates

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Low levels of physical activity and high levels of energy intake and body mass have all been directly associated with colon cancer. The purpose of this study was to determine how physical inactivity interacts with other components of energy balance (energy intake and body mass) in determining colon cancer risk. Data were obtained from 2073 first primary(More)
The Life After Cancer Epidemiology (LACE) Study, a cohort of 2321 early stage breast cancer survivors, was established in 2000 to examine how modifiable behavioral risk factors affect quality of life and long-term survival. Women were recruited primarily from the Kaiser Permanente Northern California Cancer Registry (KPNCAL) and the Utah cancer registry(More)
OBJECTIVE To examine the relationship of dietary change to weight change in women who quit smoking and remained abstinent for 1 year. METHODS For 1 year, 582 women participating in smoking cessation classes were studied. Weight, diet, and physical activity were measured at baseline and at 1, 6, and 12 months after smoking cessation. Multivariate(More)
OBJECTIVE To describe methods used to computerize the diet history questionnaire developed for the Coronary Artery Risk Factor Development in Young Adult (CARDIA) study and to describe quality-control procedures used in conjunction with dietary assessment. DESIGN The computerized diet history is being used in a case-control study. Because of the(More)
In a case-control study of colon cancer conducted in three geographic regions of the United States, 1993 case subjects and 2410 control subjects were interviewed. In addition to queries regarding other known or suspected risk factors, subjects were asked about their use of eight drugs or drug groups. Two of these, aspirin and other nonsteroidal(More)
Eating frequency has been found in most previous studies to have a positive association or no association with colon cancer. We report data from a large case-control study to determine the effect of eating frequency on colon cancer risk. Data were analyzed from interviews of 1,966 cases of colon cancer and 2,380 controls from selected areas in Northern(More)
OBJECTIVES The effect of caffeine consumption on fertility was examined prospectively in 210 women. METHODS Women reported on caffeinated beverage consumption and pregnancy status monthly. Odds ratios for becoming pregnant were calculated for both high and moderate vs low consumption. RESULTS No significant association was found for any of the(More)
The performances of two commonly used diet instruments, the Block and the Willett food frequency questionnaires, were compared with a longer, interviewer-administered diet history. Participants in a case-control study on diet and colon cancer were interviewed between 1990 and 1994 in northern California, Utah, and Minnesota by trained nutritionists using a(More)
OBJECTIVE This study sought to evaluate the benefit of utilizing a nutritionist review of a self-administered food frequency questionnaire (FFQ), to determine whether accuracy could be improved beyond that produced by the self-administered questionnaire alone. DESIGN Participants randomized into a dietary intervention trial completed both a FFQ and a(More)
OBJECTIVE To evaluate the ability of a fat screener modified from Block et al to discriminate persons whose diets consist of 38% of kilocalories or more from fat from the remainder of the population. DESIGN Sensitivity, specificity, and positive predictive value of the adapted screener were calculated. Percentage of kilocalories from fat was assessed by(More)