Health Determinants, Obesity, Built Environment & Youth Violence

According to Healthy People 2010 excerpts, individual behaviors and environmental factors account for what percentage of premature deaths in the United States?

Approximately 70 percent

In the context of health determinants, what factors are included under the domain of 'Biology'?

Genetic makeup (factors present at birth), family history, aging, diet, physical activity, injury, and acquired physical or mental conditions.

How does the text describe the relationship between biology and behavior?

It is reciprocal; behavior can alter biological cellular structure (e.g., smoking altering lung cells), and biological factors can motivate behavioral changes (e.g., family history of heart disease encouraging a healthy diet).

How are 'Behaviors' formally defined in the determinants of health framework?

Individual responses or reactions to internal stimuli and external conditions.

What components make up the 'Social Environment' determinant of health?

Interactions with family, friends, coworkers, and community members, as well as social institutions (e.g., law enforcement, schools, workplaces, places of worship) and cultural customs.

What is the difference between tangible and less tangible elements of the physical environment?

Tangible elements can be directly perceived (seen, touched, heard, smelled, tasted), whereas less tangible elements include invisible hazards like radiation, ozone, and toxic chemical substances.

How do policies and interventions improve population health?

By targeting determinants related to individuals and environments, such as mandating automobile child restraints/seatbelts, funding disease prevention, and ensuring clinical care access.

What are the two overarching objectives of expanding access to quality health care?

"1. To eliminate health disparities.

2. To increase the quality and years of healthy life."

What is the central assumption of the ecological model of health behavior?

No single factor influences behavior; rather, behavior is shaped by complex, reciprocal interactions between individuals and their environment.

From which discipline is the concept of 'ecology' borrowed, and what does it mean in that context?

It originates in biology, referring to a system of interdependent interactions between organisms and their environment where changes to one component affect the entire system.

Prior to the adoption of ecological models in the late 1970s and 1980s, what was the primary focus of health promotion programs?

Individual-level factors, specifically the knowledge, attitudes, and motivations of the individual.

How does the Rio Declaration of 2011 define 'Social Determinants of Health'?

The societal conditions in which people are born, grow, live, work, and age that give rise to health inequities.

What individual-level factors are typically included in a socioecological model?

Awareness, knowledge, biophysical characteristics (genetics), developmental stage, and habit socialization.

What factors fall under the 'Social/Cultural/Group' level of influence in an ecological framework?

Peer group lifestyle patterns, cultural beliefs/attitudes, social support levels, and group social network influences.

What elements constitute the 'Socioeconomic and Structural' level of influence on health?

Poverty status, education level, access to healthcare services, and systemic social stressors like discrimination or civil violence.

Give two examples of political factors that influence health behaviors.

"1. Regulations prohibiting tobacco sales to minors.

2. Health insurance policies, availability, and funding for prevention programs."

What broad environmental factors can impact population health behavior and outcomes?

Air/water pollution, natural disasters, conditions facilitating infectious disease transmission, and climate change.

According to NHANES 2015-2016 data cited in the text, what percentage of U.S. adults were categorized as obese?

Nearly 40%

What was the prevalence of youth obesity in the United States according to NHANES 2015-2016 data?

18.50%

How did the proportion of obese children aged 5-17 in 2008-2009 compare to that in 1973-1974?

It was five times higher.

What projection did the American Heart Association make regarding healthcare costs attributable to obesity if trends continue?

They could reach 16% to 18% of total U.S. healthcare expenditures.

What did the World Health Organization estimate for global adult overweight and obesity numbers in 2016?

Approximately 1.9 billion adults were overweight, of whom more than 650 million were obese.

Why do public health researchers view recent obesity increases as preventable rather than genetic?

Because the rapid, epidemic surge in obesity occurred over decades—far too quickly to be driven by changes in the human gene pool.

List four lifestyle/environmental drivers of increased energy consumption and obesity.

"1. Extensive fast-food marketing.

2. Increased portion sizes.

3. Reliance on vehicular transport.

4. Sedentary behavior driven by screens and labor-saving technology."

Why did early public health efforts that focused solely on individual obesity education fail in the long term?

They ignored environmental drivers that actively encourage overeating and discourage physical activity, failing to address how environment and behavior interact.

How do cultural perceptions of body weight differ in societies with a history of food scarcity?

A larger body size is viewed positively as a symbol of health and prosperity, whereas thinness is associated with disease and starvation.

What is the definition of the 'built environment'?

The man-made surroundings that provide the setting for human activity, ranging from large-scale civic surroundings to personal spaces.

Which primary factors influence an individual's decision to engage in regular physical activity?

Cost, time, personal safety, and physical access to facilities or walkable environments.

Give two examples of modifications to the built environment that successfully increase physical activity.

"1. Adding motivational signage to prompt stair use.

2. Providing employee showers/changing rooms or developing rural walking trails."

How does the World Health Organization categorize interpersonal violence among youth aged 15-29?

As a major public health crisis, responsible for 36.2% of total global mortality in that age group in 2002.

In 2014, homicide was the third leading cause of death for U.S. youth aged 10-24. What proportion of these homicides involved firearms?

86%

Describe the racial disparities in homicide rates among U.S. youth aged 10-24.

Homicide is the leading cause of death for African American youth, at a rate 5 times higher than for Latino youth and over 18 times higher than for Caucasian youth.

At what developmental stage do serious acts of violence typically begin?

Between ages 12 and 20, coinciding directly with adolescence.

Contrast 'risk factors' and 'protective factors' in youth violence.

Risk factors (e.g., family conflict, poverty, crime exposure) increase violent behavior likelihood; protective factors (e.g., caring adult presence, school attachment) buffer or offset risk.

What is the primary objective of Positive Youth Development (PYD)?

To foster youth 'thriving' and build protective resilience assets to offset exposure to environmental risk factors.

What term describes the complex interaction between an individual and multiple risk/protective factors across domains?

The 'web of influence'.

What is the core premise of 'Problem Behavior Syndrome' approaches?

Risk behaviors (delinquency, substance abuse, violence, early sexual activity) stem from a single, coherent pattern of risk-taking linked to low commitment to conventional society.

How do Developmental Pathways approaches explain youth crime and violence?

They view violence as the culmination of an early-starting trajectory shaped by accumulating risk factors over time.

Define 'self-concept' in adolescent development.

The mental image one has of oneself.

How does the 'Possible Selves' theory link identity formation to adolescent delinquency?

If adolescents cannot envision a viable 'possible self' within conventional domains (school/family), delinquency and violence provide alternative pathways to status and prestige.

According to socioecological models, why do inner-city youth participate in illicit street economies?

Severe economic isolation and lack of mainstream job opportunities leave drug dealing and street activity as the dominant accessible playing field for achievement and status.

Which two historical factors drove the sharp spike in juvenile homicides in the U.S. during the mid-1980s to mid-1990s?

"1. The crack cocaine epidemic (which recruited youth into dealing).

2. The widespread proliferation and normalization of firearms among youth."

According to social information processing models, how does aggressive youth behavior arise?

It occurs when youth misinterpret or miscode social cues (e.g., perceiving neutral actions as hostile) and lack a non-violent repertoire of responses.

How does perceived neighborhood danger affect an adolescent's cognitive beliefs about violence?

It reinforces positive beliefs about the legitimacy and utility of aggression as a necessary protective strategy.

By the end of 2016, how many people worldwide were living with HIV/AIDS?

Approximately 36.7 million people

What are the three primary routes of HIV transmission?

"1. Unprotected sexual contact (heterosexual or same-sex).

2. Sharing intravenous drug equipment.

3. Perinatal (mother-to-child) transmission."

Why is public health action against HIV/AIDS predominantly focused on behavior change?

Because despite antiretroviral therapies (HAART) managing the virus, there is no medical cure or vaccine, making primary prevention through behavior modification essential.

In the United States, which demographic group currently experiences the highest surge in new HIV infections?

Young African American men who have sex with men (MSM).

What is the primary mode of HIV transmission in sub-Saharan Africa?

Unprotected heterosexual intercourse (and associated perinatal transmission).

Which socioecological factors perpetuate high HIV rates in sub-Saharan Africa?

Migrant labor patterns, gender inequalities restricting women's negotiating power, lack of health infrastructure, and sexual violence in civil conflicts.

What was the main behavioral driver of the rapid HIV epidemic growth in Eastern Europe and Central Asia post-1990s?

Injection drug use (and its overlap with sex work), coupled with economic instability and lack of prevention programs.

How does migrant labor contribute to HIV transmission dynamics in India?

Migrant workers separated from families for extended periods often frequent commercial sex workers, acquiring HIV and spreading it back to home communities.

How do traditional gender roles affect HIV risk among Roma (Gypsy) populations in Eastern Europe?

Men hold decision-making power and engage in outside sexual partnerships, while women lack sexual autonomy, relationship power, and basic knowledge of STDs/HIV.

Why is it important to study the historical and theoretical roots of health behavior models?

To understand their underlying assumptions, strengths, weaknesses, and appropriate contexts of application, preventing formulaic or misuse of theory.

How did ancient Greek thinkers approach the concept of natural order?

They assumed an inherent order underlay nature and sought to systematically discover and apply that knowledge to human ends.

What was Democritus's key conceptual contribution to physical science?

The idea that the physical world consists of discrete, indivisible bits of matter called 'atoms'.

How did Aristotle contribute to Western scientific categorization?

By creating classification schemes to analyze natural phenomena based on matter, form, motion, space, time, and language logic.

How was natural order interpreted during the European Middle Ages?

Natural order was equated with divine order, as scholarship was monopolized by the Church.

What reconciliation did Thomas Aquinas propose in *Summa Theologica*?

He argued that human reason (philosophy) and divine revelation (theology) coexist, claiming natural order demonstrates the existence of God.

What was the scientific significance of the Enlightenment break from Church dogma?

It established empirical observation and secular scientific inquiry—rather than religious doctrine—as the foundation for knowledge.

Why is the distinction between 'internal' and 'external' determinants of behavior arbitrary?

Because internal psychological states and external social/physical environments continuously interact, blur, and shape one another.

Why is 'health behavior' not fundamentally distinct from general human behavior?

Actions affecting health are driven by general human motives (social attraction, status, routine, economic necessity) rather than strictly health-related logic.

In the tooth-brushing scenario featuring 'Sam', what three distinct motivations were identified for his behavior?

"1. Health maintenance (preventing cavities).

2. Cultural ideal alignment (GQ magazine model aesthetics).

3. Social attraction/mating strategy (standing out at a party)."

How does transitioning from a rural agrarian economy to an urban industrial economy alter population health risks?

It creates overcrowding, strains sanitation/water systems, increases infectious disease transmission (e.g., TB), restricts cheap food access, and drives vulnerable migrants into high-risk informal sex work.

What does 'reciprocal determinism' mean within a socioecological context?

Individuals adapt to their environmental circumstances while actively influencing and modifying those environments through their actions.

In health behavior theory, what is 'self-efficacy'?

An individual's confidence in their operational ability to carry out a specific health behavior or lifestyle change.

Why is framing youth violence strictly as an individual moral choice insufficient from a public health perspective?

It ignores systemic socioecological drivers like poverty, firearm availability, structural discrimination, and lack of conventional economic options.

What role do logic models play in health promotion program planning and evaluation?

They visually link theoretical assumptions, program resources/inputs, planned activities, immediate outputs, and long-term health outcomes.

What is the key evaluation objective of a 'process evaluation'?

To determine whether the program was implemented as intended and reached the target population.

How does an 'outcome evaluation' differ from a 'process evaluation'?

Process evaluation measures implementation fidelity, whereas outcome evaluation measures the intervention's actual impact on target behaviors or health indicators.

Why are single-level individual interventions often ineffective in modifying health behaviors sustained by structural environments?

Because individual intent cannot easily override hostile environmental barriers, such as food deserts or unsafe neighborhood environments.

How does high density of fast-food outlets in low-income neighborhoods function as a structural determinant of obesity?

It creates an environment where calorie-dense, low-cost food is readily available while affordable fresh produce remains scarce.

What is meant by 'generative approaches' to health risk behavior in marginalized populations?

Approaches that examine how people construct meaningful life constructs and adapt to difficult conditions, generating behaviors that make functional sense in their context.

How do peer networks shape health behaviors during adolescence?

They establish social norms, provide behavioral modeling, offer social approval, and define avenues for status within the group.

What are social stressors, and how do they act as determinants of health?

Conditions like poverty, racial discrimination, and community violence that cause chronic psychological stress, affecting physical health and biological mechanisms.

What defines a 'multilevel health intervention'?

An intervention strategy that simultaneously targets factors across multiple socioecological levels (e.g., individual knowledge, family support, school environment, policy regulations).

According to the text, why is harm reduction utilized in drug prevention programs?

Because completely eliminating high-risk behavior immediately may be unrealistic; harm reduction lowers disease risk (e.g., HIV transmission via needle exchange) without requiring immediate total cessation.

What is the defining feature of behavioral epigenetics as described in the text?

The study of how social and environmental influences affect gene expression without altering underlying DNA sequences, subsequently influencing behavior and health.

How does public policy on health insurance coverage act as a structural determinant of health status?

It dictates financial access to preventive care, early diagnostic screening, and disease management, directly impacting chronic illness burdens across populations.

In public health planning, what is the key benefit of grounding an intervention in a well-validated social science theory?

It ensures intervention activities directly address the established behavioral and environmental mechanisms that cause or sustain the targeted health problem.