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Introduction Prenatal health programs provide health education, reproductive care and related services to women. Programs may be administered individually or collaboratively by agencies including public health units, hospitals, health clinics, community and non-governmental organizations. Prenatal health disparities among populations at-risk may be reduced through the provision of accessible health education, services and resources to help women mitigate modifiable risks to pregnancy. Although standardized guidelines inform clinical screening, testing and maternity care, gaps exist regarding the design, implementation and evaluation for comprehensive prenatal health programs. Methods Using a multijurisdictional approach, prenatal health guidance documents released by clinical associations and regional governments across Canada, Australia, the United States, the United Kingdom and Ireland were systematically evaluated to identify standards and practices regarding the design, implementation and evaluation of prenatal health programs. Results Evidence-based, surveillance/monitoring, and expert/stakeholder collaborations were principles affirmed by guidance documents across all jurisdictions. Each jurisdiction described tailored strategies to optimize prenatal health in their respective communities. Divergence between jurisdictions was noted for patient care models and promotion of providers and companions of choice. Discussion A best practices model is proposed describing recommendations as follows: prenatal health programs should be grounded in a theoretical approach, fundamentally woman-centered and designed to address interacting prenatal health determinants across the lifespan. Accessible and inclusive prenatal health care can be achieved through provider training and community stakeholder collaborations. Identification of best practices for prenatal health program design, implementation and evaluation ensures that service standards are harmonized across communities, thereby optimizing maternal and child health.

Breast cancer is the most frequently diagnosed cancer among Canadian women, accounting for about 30% of all new cancer cases each year. Although the incidence of breast cancer has increased over the past 50 years, the cause of this rise is unknown. Risk factors for breast cancer may be classified into four broad categories: (1) genetic/familial, (2) reproductive/hormonal, (3) lifestyle, and (4) environmental. Established risk factors for breast cancer include older age, later age at first full-term pregnancy, no full-term pregnancies, postmenopausal obesity, and genetic factors. However, these known risk factors cannot account for the majority of cases. In the early 1990s, it was suggested that exposure to some environmental chemicals such as organochlorine compounds may play a causal role in the etiology of breast cancer through estrogen-related pathways. The relationship between organochlorines and breast cancer risk has been studied extensively in the past decade and more, and at this point there is no clear evidence to support a causal role of most organochlorine pesticides in the etiology of human breast cancer, but more evidence is needed to assess risk associated with polychlorinated biphenyls (PCBs). Future studies need to consider the combined effects of exposures, concentrate on vulnerable groups such as those with higher levels of exposure, only consider exposures occurring during the most etiologically relevant time periods, and more thoroughly consider gene-environment interactions.

Managing risks to human health and the environment produced by endocrine-active chemicals (EAC) is dependent on sound principles of risk assessment and risk management, which need to be adapted to address the uncertainties in the state of the science of EAC. Quantifying EAC hazard identification, mechanisms of action, and dose-response curves is complicated by a range of chemical structure/toxicology classes, receptors and receptor subtypes, and nonlinear dose-response curves with low-dose effects. Advances in risk science including toxicogenomics and quantitative structure-activity relationships (QSAR) along with a return to the biological process of hormesis are proposed to complement existing risk assessment strategies, including that of the Endocrine Disruptor Screening and Testing Advisory Committee (EDSTAC 1998). EAC represents a policy issue that has captured the public's fears and concerns about environmental health. This overview describes the process of EAC risk assessment and risk management in the context of traditional risk management frameworks, with emphasis on the National Research Council Framework (1983), taking into consideration the strategies for EAC management in Canada, the United States, and the European Union.

In the realm of political economy, much of the 1980s in the United States was spent debating the pros and cons of industrial policy. According to Kevin P. Phillips, the debate is now over. Regardless of who wins the 1992 presidential election, the United States will have some kind of industrial policy--but not the one it needs. In "U.S. Industrial Policy: Inevitable and Ineffective," Phillips details the economic and political forces that are propelling the U.S. toward industrial policy--and the forces that will keep the policy from being effective.