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Updated: Jun 4, 2026
10:26
Problem-Solving Before Instruction (PS-I): A Protocol for Assessment and Intervention in Students with Different Abilities
Published on: September 11, 2021
Why are some books important (and others not)?
Robert G Evans1, Morris L Barer, Clyde Hertzman
1Centre for Health Services and Policy Research, University of British Columbia, Vancouver, BC. bevans@chspr.ubc.ca
Summary
Understanding population health determinants reveals systematic health differences across various social factors. Socio-economic status significantly impacts health through stress and coping resources, influencing lifelong well-being.
Area of Science:
- Public Health
- Social Epidemiology
- Health Policy
Background:
- The book "Why Are Some People Healthy and Others Not? The Determinants of Health of Populations" is a seminal work.
- It builds upon "A New Perspective on the Health of Canadians" by Marc Lalonde.
- It established a theoretical framework integrating diverse evidence on population health.
Purpose of the Study:
- To explore the determinants of population health.
- To analyze the heterogeneity and social gradients in health outcomes.
- To understand the influence of the social environment on health.
Main Methods:
- Observation of systematic health differences across population subgroups (e.g., income, education).
- Analysis of the correlation between socio-economic status and health (social gradient).
- Examination of how social position affects stress exposure and coping resources.
Main Results:
- A strong social gradient exists, linking socio-economic class to health outcomes.
- The social environment significantly influences health.
- Stress responses become embedded behaviorally and biologically over the life course.
Conclusions:
- The book provided a crucial theoretical framework for understanding population health.
- The concept of "Population Health" is now integral to Canadian health research.
- Systematic differences in health are observable and linked to social determinants.
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