Healthcare topics affecting pediatric populations, including newborns, infants, children, adolescents, and young adults (up to age 21).
Healthcare topics affecting the elderly and aging adults (age 65 years or older), such as geriatric care, age-related long-term care needs, and the prevalence of chronic conditions and comorbidities.
Healthcare topics affecting low-income individuals, such as access to care, affordability of care, and social determinants of health. 
Healthcare topics affecting racial and ethnic minorities, including Blacks/African-Americans, Hispanics/Latinos, Asians and Pacific Islanders, and American Indians and Alaska Natives.
Healthcare topics affecting residents in inner cities and in rural areas, such as delivery of care, health behaviors, and prevalence of certain conditions/diseases.
Healthcare topics affecting individuals with disabilities and/or chronic conditions, as well as those requiring long-term or end-of-life care.
Healthcare topics affecting women, such as gynecological and reproductive healthcare, obstetric care, and care for prevalent chronic conditions.
 Healthy People 2020 defines social determinants of health as the conditions in the environments in which people are born, live, learn, work, play, worship, and age that affect a wide range of health, functioning, and quality-of-life outcomes and risks. Conditions (e.g., social, economic, and physical) in these various environments and settings (e.g., school, church, workplace, and neighborhood) have been referred to as “place.” In addition to the more material attributes of “place,” the patterns of social engagement and sense of security and well-being are also affected by where people live. Resources that enhance quality of life can have a significant influence on population health outcomes. Examples of these resources include safe and affordable housing, access to education, public safety, availability of healthy foods, local emergency/health services, and environments free of life-threatening toxins.