Week 10: Inequalities in Health Flashcards
What are the two takeaways from the Robert Sapolsky video about stress and hierarchy in baboons?
1) Hierarchy is bad for health - Those at the bottom of the hierarchy have higher stress responses
2) Hierarchy gone -> Lower status started to thrive. Low levels of aggression and high levels of social affiliation can help to buffer stress
What are the two ways of defining social class?
- Objective social class
- Subjective social class
What are the components of objective social class?
1) Income
2) Education
3) Occupation
One’s own or parents’
What is subjective social class?
Own judgment of where you stand along the social ladder in society
What are the characteristics of the social class health gradient?
- Continuous
- Relative rank is important
What are the findings of the Whitehall Studies?
- Tight categorisation of rank within London Service sector, very hierarchical
- All service workers have access to same health benefits (i.e. access to healthcare controlled for)
- YET: a strong association b/w employment rank and mortality rates
What are the aspects of the environment that are related to SES?
- Physical
- Social
How does SES relate to one’s physical environment?
- Higher levels of toxins and pathogens
- Noise, pollution and crowding
- Poor infrastructure
- Jobs that are more physically dangerous
- Limited access to recreational facilities, quality healthcare, healthy foods
How does SES relate to one’s social environment?
- Crime and violence
- Less social support
- Social (family) conflict
What are the aspects of psychological response that are related to SES?
- Affect
- Cognition
How does SES relate to affect?
Anxiety/distress from awareness of negative stereotypes about low SES, that can evolve into depression
How does SES relate to cognition?
Low sense of personal control and mastery
Perceived control at work explained a sig. portion (more than half) of the health gradient among the Whitehall civil servants
How does cognition relate to affect?
Low optimism increases feelings of hopelessness, hostility and anger, and subsequently the risk of chronic health disorders
Slows recovery from major surgeries e.g. coronary bypass surgery
How does environment and psychological response relate to health-compromising behaviours?
- (Short-run) Stress-relieving behaviours e.g. smoking, sedentary lifestyle, high-fat diet
- Lower adherence to medical treatments, particularly among those with lower education
How does environment and psychological response relate to biological response?
- Allostatic load
What is allostatic load?
Cumulative “wear and tear” from chronic exposure to stress
How is the allostatic load score calculated? What are its implications?
Sum of indicators in the highest risk quartile (top 25%)
BP, waist-to-hip ratio, cholesterol, blood glucose, cortisol, etc
Higher AL score, higher disease risk and earlier mortality
How does SES relate to allostatic load?
Karlamanga et al (2002)
- Low SES indivs. had higher AL scores at baselines
- Higher scores predicted poor physical and cognitive functioning, cardiac health and mortality up to 7 years later