On kidsdata.org, estimates of children's health status are based on self-reports (or parent reports, for younger children) of being generally in (a) excellent or very good health, (b) good health, or (c) fair or poor health. Data are available for children ages 0-17 overall, by income level, and by race/ethnicity.

Health status during childhood sets young people on a path toward good or poor health in adulthood (1, 2). Each stage of life influences the next, with early childhood in particular providing a foundation for future health and development (1, 2, 3). Children who face disadvantage—whether in household or neighborhood resources, education, family functioning, exposure to traumatic events, or other social factors—tend to fare worse on measures of health than other children (1, 4).

Promoting child health not only improves the lives of individual children and their families, it also strengthens the health of the next generation, which may have significant social and economic impacts (1, 2, 5). Healthier young people tend to become healthier and more educated adults who are better able to contribute to society, which means a stronger workforce and reduced strain on public service systems (2, 5). Thus, nurturing California's children today may improve the state's future social and economic well being (2, 6).

An estimated three-quarters (76%) of California children ages 0-17 were in excellent or very good health in 2017-2018, up from two-thirds (66%) in 2001. Across counties with data in 2017-2018, estimates of children in excellent or very good health ranged from less than 50% (Imperial and Madera) to more than 90% (El Dorado and San Francisco). In 2001, more than 1 in 12 California children (9%) were in fair or poor health; in 2017-2018 this proportion was about 1 in 20 (5%).

Children's health status varies by family income and race/ethnicity. In 2017-2018, an estimated 65% of California children living below 200% of their federal poverty threshold were in excellent or very good health, compared with 83% of children from higher-income families. Across race/ethnicity groups with data, rates of excellent or very good health status were highest among white (84%) and American Indian/Alaska Native children (80%), and lowest among Hispanic/Latino (71%) and multiracial children (73%).

Child health is shaped by a broad range of social, economic, environmental, biological, and behavioral factors (1, 2). The circumstances in which children are born and grow up impact their health and well being throughout life (1, 3). Efforts to improve child health can be strengthened by recognizing the wide range of influences on children's lives, promoting cross-sector strategies that go beyond traditional health care, and helping to ensure that all children grow up in safe and supportive environments (2, 3, 4).

Policy and program options that could improve children's health status include:

• Ensuring that every child has access to family centered, culturally competent, coordinated health care within a medical home (5)
• Supporting a comprehensive approach to health care that goes beyond treating illness to addressing social determinants of health, ensuring that training and reimbursement mechanisms are in place for health care professionals to identify non-medical health needs and provide referrals to services (2, 3)
• Fostering stable, nurturing family relationships and home environments through effective support and prevention services including comprehensive parenting education, family support, and home-visiting services for families in need (3, 6)
• Maintaining, strengthening, and increasing enrollment among eligible families in social safety net programs, such as CalFresh (food stamps) and the Women, Infants, and Children (WIC) supplemental nutrition program (4, 7)
• Ensuring that high-quality early education and child care programs—which should include a focus on strengthening parenting skills—are available to all families, regardless of income (3, 4)
• Continuing efforts to build neighborhoods that are safe and designed to promote health; as part of this, incentivizing and promoting cross-sector collaboration among urban planning, housing, transportation, health care, public health, education, and other sectors (2, 3, 6)