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Biomedical subjects

M Jenicek

Publications and source records attributed to M Jenicek.

At least 37 records · Page 2Linked to original sources

Oral contraceptives and prolactinomas: a case-control study.

The increase in the number of newly diagnosed cases of prolactinomas seems to coincide with the use of oral contraceptives during the past two decades. The following retrospective case-control study was undertaken in an attempt to disprove a null hypothesis of relationship between oral contraceptive use and prolactinomas. Each of 70 patients operated upon for removal of a prolactinoma was closely matched for age, gravidity, and year of final diagnosis with one patient in each of three control groups. The control groups selected were constituted, respectively, of patients with secondary amenorrhea and normal prolactin levels, patients with normal ovulatory cycles consulting for infertility, and subjects without medical or gynecologic problems. No statistically significative differences were found in the exposure rates to oral contraceptives among four groups. This study thus failed to reveal a significant association between prolactinomas and oral contraceptives but, given the sample size, a relative risk lower than 3.32 cannot be demonstrated or disproved.

Adolescent↗

Principal component analysis of four health indicators and construction of a global health index in the aged.

The health status of 1025 urban senior citizens in a Montreal metropolitan area was determined by a questionnaire based on the subjects' view of physical, mental, and general well-being, and of dependence (indicators of Belloc et al., Berkman, Grogono and Woodgate, and Linn). A principal component analysis was made of these health indicators and two factors were retained. The first factor, which can be called a global health index, was used to compare the sexes and the age strata; it was thus found that men (those who survive) are generally healthier than the women, and that subjects from the lower-age strata are healthier than their older counterparts. The second factor is described as opposing physical health and dependence to mental health, the results of which were similar for both sexes, bur differed according to the various age strata compared.

Age Factors↗

[Present situation and future prospects for epidemiological surveillance within the framework of Quebec new health system (author's transl)].

Epidemiological surveillance in Quebec is part of the integral system of this activity throughout the whole of Canada and the United States. Since surveillance is aimed mainly at the ecosystem of the disease rather than just the cases, the activities are insured from the horizontal point of view by several organisations, aided by various Ministeries (health, agriculture, industry and commerce). The vertical structure (besides the Center for Disease Control in Atlanta as coordinator) includes the federal Laboratory Centre for Disease Control, its epidemiology and surveillance bureaus, as well as its territorial epidemiologists, provincial epidemiologists and their teams. Quebec has recently been given a new health structure, introduced in conjunction with the traditional organisations by the new Departments of Community Health, and the Social Centres of Community Services. This structure which is new to North America is characterised mostly by its close integration with community health. Moreover, it represents an excellent opportunity for developing an epidemiological surveillance complementary to local problems and for heightening their responsibility.

Communicable Disease Control↗

[Relationship between some health indicators of physical, mental well-being and handicaps in the aged (author's transl)].

The health status of 1,025 senior urban citizens was determined by a questionnaire based on the subjects' view of physical, mental and global well-being and of dependency (indicators of Belloc and all., Berkman, Grogono and Woodgate, Linn). The significant correlation was observed between different health indicators. However, these correlations are not strong enough to allow the explanation of one indicator by the others. The mental well-being is most independent of all other health measurements under study. The valuable information on the prevalence of some health limitations in the population is given by the constituents of the health indexes used. On the contrary, a more complete view of the health of the population should be obtained by the non correlated methods of measurement. The situation may vary following the epidemiological characteristics of the population studied.

Aged↗

Epidemiology for Canadian medical students--desirable attitudes, knowledge and skills.

There is increasing recognition that the concepts traditionally taught by epidemiologists are essential for all medical graduates, most of whom will be clinicians, and not just for the minority who will specialize in population-based disciplines. This paper presents the recommendations of a Canadian conference which considered objectives for teaching epidemiology to medical undergraduates. These objectives are presented as the attitudes, knowledge and skills medical students should acquire. Recommendations concentrate on what should be learned, rather than what should be taught, or who should teach it. It was the concensus that epidemiologists are responsible for assuring that basic epidemiological attitudes, knowledge and skills be acquired, though the subjects need not be taught exclusively by epidemiologists themselves.

Attitude↗

Conceptual differences between prevention and health promotion: research implications for community health programs.

We review recent publications on the concepts of health promotion and prevention. These concepts are based on various paradigms which are defined here. A brief history of the evolution in the meaning of health is presented. Attention is turned to the research implications of the new trend of public health programs which focus on health promotion. In Canada, Achieving Health for All: a framework for health promotion is under examination in order to establish objectives and strategies for the development of health promotion programs. However, a well-articulated research strategy is urgently needed to enhance health promotion activities in this country. Disease prevention and health promotion could continue as distinct entities only if clear operational criteria, characteristics and definitions exist for each of them.

Canada↗