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Biomedical subjects

J Feather

Publications and source records attributed to J Feather.

28 records · Page 2Linked to original sources
PubMed1978

A comparison of dietary methods in epidemiologic studies.

Three methods of estimating group and individual dietary consumption have been developed and assessed in a case-control study of diet and breast cancer. The methods comprised a 24-hour recall, a detailed quantitative diet history directed to the most recent two-month period and the two-month period six months before, and a four-day diet diary. There is a high degree of correlation between the estimates of food consumption for the controls using each of the methods. The highest estimate was obtained from the diet history, with a slightly higher estimate in the period six months before than the current period, while the lowest is found in the 24-hour recall. The latter corresponds with the same method in a Nutrition Canada Survey. It is concluded that all methods ara applicable to case-control studies, but the diet history is preferred when current food intake may be influenced by a disease.

Breast Neoplasms↗
PubMed1978

A study of diet and breast cancer.

A case-control study has been conducted in four areas in Canada in which 400 cases of breast cancer matched by age and marital status with neighborhood controls were administered a medical and dietary history questionnaire, a 24-hour recall for dietary information and a four-day diet record. The Study has produced evidence of an association between an increased intake of nutrients, especially total fat, in both pre-menopausal and post-menopausal women with breast cancer. Reasons why a weak association might have been anticipated are discussed, and it is concluded that in reality the association is stronger. Furthermore, its consistency with other evidence, both experimental and international, suggests that it is causal.

Age Factors↗
PubMed1978

An epidemiologic study of breast cancer.

A case-control study has been conducted in four areas of Canada in which 400 cases of breast cancer matched by age and marital status with neighborhood controls were administered medical and dietary questionnaires. The study is suggestive of an increased risk of breast cancer in post-menopausal women with younger age at menarche and an increased risk with delay of age at natural menopause. No protective effect of early age at first pregnancy was demonstrated in either pre- or post-menopausal women. An increased frequency of pregnancies of four months duration or less was found in cases compared to controls and a greater frequency in pre-menopausal cases compared to controls of a history of irregular menstrual periods. In pre-menopausal women no association has been found between increased height and weight as risk factors for breast cancer. For post-menopausal women, however, a weak association with increased height has been found, while a strong association with increased weight both at the time of menopause and the 12 months preceding diagnosis has ben confirmed.

Adolescent↗
PubMed1976

Utilization of health services in Western Canada: basic Canadian data from the World Health Organization/International Collaborative Study of Medical Care Utilization.

In a household health survey more than 15 000 individuals in four areas of Canada were interviewed as part of the World Health Organization/International Collaborative Study of Medical Care Utilization. Data were collected to describe the health services system in each area and to measure the population's utilization of health professionals, hospitals, medicines and selected preventive services, perceived acute and chronic morbidity, attitudes and beliefs about health and health care, and sociodemographic characteristics. The proportion of persons with perceived morbidity was twice that of persons reporting visits with a physician in the same 2-week period. Prescribed and nonprescribed medications had been used by more than 50% of respondents in each area in the 2 days before the interview, nonprescribed medicines accounting for more than half of this use. Respondents were found to be more sceptical of medical doctors than of medical science.

Attitude to Health↗
PubMedDate not supplied

Duplication of well-baby services.

Parents, community health nurses (CHNs) and physicians in Saskatoon were surveyed to determine if specific components of well-baby services provided by CHNs and physicians were duplicated. A response was obtained from 348 (81%) of the parents, 34 (89%) of the CHNs and 129 (87%) of the physicians. Results of the study indicate that there is extensive duplication of measurements taken by CHNs and physicians at the two, four, six, and twelve-month well-baby visits, especially that of height and weight. Content of well-baby care was also examined. The percentage of both physicians and CHNs who "usually or always" perform specific tasks at each well-baby visit was very high, particularly screening tests and inquiries about nutrition. Assessments and inquiries regarding development were performed less frequently, as were inquiries about safety issues.

Canada↗
PubMedDate not supplied

Promoting social health in northern Saskatchewan.

In response to concern about social health problems in Northern Saskatchewan, a Working Group on Social Health was established in 1989 in the Research and Development Committee of Northern Medical Services. The Group formulated a concept of mental health in social terms; found and interpreted indicators of the extent of social health problems; identified major determinants of social health problems, barriers to effective coping and problems in providing adequate support and services; and identified strategies and program models that could be more effective in promoting social health in this region. Indicators of problems and underlying determinants are discussed, along with strategies for change. These strategies are based on a community development model, and incorporate innovation and reaffirmation of values and ways that have traditionally given people strength.

Adaptation, Psychological↗