Students Who Are Overweight or Obese, by Grade Level

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Learn More About Weight

Measures of Weight on Kidsdata.org
On kidsdata.org, indicators of overweight and obesity include the percentage of public school students in grades 5, 7, and 9 scoring above the "Healthy Fitness Zone" on the body composition area* of California's physical fitness test, the FitnessGram assessment. These data are available by grade level, gender, and race/ethnicity.
* Since 2014, a large majority of California schools have used body mass index to measure body composition, which aligns with standards from the U.S. Centers for Disease Control and Prevention, but some schools may use alternative methods such as skinfold or bioelectric impedance analysis.
Weight
Characteristics of Children with Special Needs
Nutrition
Physical Fitness
Why This Topic Is Important
One-third of U.S. children ages 2-19 are overweight or obese, according to a 2013-2014 survey from the Centers for Disease Control and Prevention (CDC) (1). (A Body Mass Index (BMI) at or above the 95th percentile on CDC growth charts is considered obese; overweight refers to BMI between the 85th and 95th percentiles.) The childhood obesity rate has more than tripled over the past four decades, though rates have leveled off in recent years (1). While some progress has been made, data show that significant racial/ethnic and socioeconomic disparities persist in obesity prevalence (2, 3).

Children who are overweight or obese are at higher risk for a range of health problems, including asthma, heart disease, stroke, and some types of cancer; they also are more likely to stay overweight or obese as adults (4, 5). Some obese children are diagnosed with illnesses previously considered “adult” conditions, such as high blood pressure and type 2 diabetes (5). In addition, children with obesity are at increased risk for joint and bone problems, sleep apnea, and social and emotional difficulties, such as stigmatization and low self-esteem (4). Obesity’s impact also extends beyond the individual. U.S. medical care costs related to adult obesity are estimated between $147 billion and 210 billion annually; in California, a 5% reduction in average adult BMI could save more than $80 billion in obesity-related health care costs by 2030 (2, 5).

Many factors contribute to childhood obesity/overweight. The rise has been attributed to changes in food environments that make non-nutritious "junk" food and beverages more available, affordable, and appealing, as well as social and environmental changes that have reduced physical activity among children—e.g., increased sedentary screen time, less physical education, neighborhoods that do not promote walking or riding bikes, and decreased safe places for children to play (5, 6).
Find more information and research about children's weight in the Research & Links section.

Sources for this narrative:

1.  Fryar, C. D., et al. (2016). Prevalence of overweight and obesity among children and adolescents aged 2-19 years: United States, 1963–1965 through 2013–2014. National Center for Health Statistics, Health E-Stats. Retrieved from: https://www.cdc.gov/nchs/data/hestat/obesity_child_13_14/obesity_child_13_14.htm

2.  California Department of Public Health, & Nutrition Policy Institute. (2016). Obesity in California: The weight of the state, 2000-2014. Retrieved from: https://www.cdph.ca.gov/Programs/CCDPHP/DCDIC/NEOPB/CDPH%20Document%20Library/RES_CAObesityReport_Website.pdf

3.  The State of Obesity. (n.d.). Racial and ethnic disparities in obesity: An in-depth look at the inequities that contribute to higher obesity rates in Black and Latino communities. Trust for America's Health & Robert Wood Johnson Foundation. Retrieved from: https://stateofobesity.org/disparities

4.  Centers for Disease Control and Prevention. (2018). Childhood obesity facts. Retrieved from: http://www.cdc.gov/healthyschools/obesity/facts.htm

5.  Healthy Eating Research. (n.d.). The childhood obesity epidemic. Robert Wood Johnson Foundation. Retrieved from: http://healthyeatingresearch.org/who-we-are/the-childhood-obesity-epidemic

6.  Centers for Disease Control and Prevention. (2016). Childhood obesity causes & consequences. Retrieved from: http://www.cdc.gov/obesity/childhood/causes.html
How Children Are Faring
In 2017, 41% of 5th graders, 39% of 7th graders, and 37% of 9th graders in California were overweight or obese. These figures are similar to previous years. Statewide, the percentage of boys who were overweight or obese in 2017 was higher than the percentage for girls in each grade level.

Among racial/ethnic groups and across local areas there is wide variation in the percentage of students who are overweight or obese. For example, the percentage of 5th graders who were overweight or obese ranged from 11% to 49% among counties with data in 2017, and from 3% to 73% across school districts. Statewide, about half of all Native Hawaiian/Pacific Islander and Hispanic/Latino 5th graders were overweight or obese in 2017, compared with less than 30% of their Asian American and white peers.
Policy Implications
California has been a leader in advancing policies to combat the overweight and obesity epidemic among children, from banning soft drinks and unhealthful foods in schools to requiring nutrition labeling in chain restaurants (1). While the state's obesity rates have leveled off and even decreased in some cases, significant disparities persist by race/ethnicity and income (2). Reducing childhood overweight and obesity requires equitable access to safe places to play, frequent opportunities for physical activity in and out of school, affordable healthful foods and beverages, and reduced access to high-calorie and sugar-sweetened foods and drinks, among other factors (3, 4, 5). Public policy can make a difference by changing the environments in which children live, play, go to school, and make food choices.

Policy options that could promote healthy weight in childhood include:
  • Continuing to enforce and extend legislation that restricts the availability of unhealthful foods and drinks in schools, improves the nutritional quality of foods and beverages sold at school, and increases the accessibility of drinking water and fresh fruits and vegetables (3, 6, 7)
  • Promoting increased student participation in the School Breakfast Program, as a healthful breakfast can help regulate food intake throughout the day and decrease the risk of obesity (8)
  • Funding and facilitating high-quality programs in school and child care settings that meet existing nutrition and physical activity standards, expand opportunities for daily exercise outside of physical education, and integrate food literacy education and physical activities into lesson planning (3, 6, 9)
  • Encouraging shared use agreements to make school recreational facilities available outside of school hours, especially in neighborhoods that lack safe places for physical activity (10)
  • Supporting and planning for a built environment in schools and communities that encourages walking, bicycling, and outdoor play (3, 4, 5)
  • Promoting comprehensive cross-sector strategies to reduce consumption of sugary beverages and increase availability of healthful affordable food options, particularly in low-income communities (3)
  • Ensuring that anti-obesity efforts effectively address racial/ethnic and socioeconomic inequities, engage local communities in solutions, and utilize strategies that are culturally and linguistically appropriate (11)
  • Supporting public education to promote healthful eating and active living (3, 11)
  • Implementing common standards for marketing food and beverages to children and adolescents (3, 12)
  • Promoting evidence-based practices to increase breastfeeding initiation, duration, and exclusivity, as these have been shown to protect against obesity (2)
For more policy ideas on improving children's weight and fitness, see kidsdata.org’s Research & Links section or California Project LEAN, Action for Healthy Kids, and The State of Obesity. Also see Policy Implications on kidsdata.org under Physical Fitness and Nutrition.

Sources for this narrative:

1.  The State of Obesity. (2013). Signs of progress on childhood obesity: California. Trust for America's Health & Robert Wood Johnson Foundation. Retrieved from: https://stateofobesity.org/stories/california-statewide

2.  California Department of Public Health, & Nutrition Policy Institute. (2016). Obesity in California: The weight of the state, 2000-2014. Retrieved from: https://www.cdph.ca.gov/Programs/CCDPHP/DCDIC/NEOPB/CDPH%20Document%20Library/RES_CAObesityReport_Website.pdf

3.  Institute of Medicine. (2012). Accelerating progress in obesity prevention: Solving the weight of the nation. National Academies Press. Retrieved from: http://iom.nationalacademies.org/Reports/2012/Accelerating-Progress-in-Obesity-Prevention.aspx

4.  Lanza, A. L., et al. (2012). How the built environment contributes to the adolescent obesity epidemic: A multifaceted approach. Vanderbilt Undergraduate Research Journal, 8. Retrieved from: http://www.homiletic.net/index.php/vurj/article/view/3504

5.  Pate, R. R., et al. (2016). Policies for promotion of physical activity and prevention of obesity in adolescence. Journal of Exercise Science and Fitness, 14(2), 47-53. Retrieved from: https://www.sciencedirect.com/science/article/pii/S1728869X1630154X

6.  The State of Obesity. (n.d.). The state of obesity in California. Trust for America's Health & Robert Wood Johnson Foundation. Retrieved from: https://stateofobesity.org/states/ca

7.  Taber, D. R., et al. (2013). Association between state laws governing school meal nutrition content and student weight status: Implications for new USDA school meal standards. JAMA Pediatrics, 167(6), 513-519. Retrieved from: http://archpedi.jamanetwork.com/article.aspx?articleid=1675659

8.  BreakfastFirst. (2013). The benefits of breakfast: Health & academics. California Food Policy Advocates. Retrieved from: http://breakfastfirst.org/benefits-of-breakfast-health-and-academics

9.  Sanchez-Vaznaugh, E. V., et al. (2013). When school districts fail to comply with state physical education laws, the fitness of California’s children lags. Active Living Research. Retrieved from: http://activelivingresearch.org/when-school-districts-fail-comply-state-physical-education-laws-fitness-californias-children-lags

10.  Safe Routes to School National Partnership. (2013). Safe routes to school: Addressing childhood obesity through shared recreational facilities. Retrieved from: http://saferoutespartnership.org/sites/default/files/pdf/Lib_of_Res/Addressing-Childhood-Obesity-Through-Shared-Recreational-Facilities.pdf

11.  The State of Obesity. (n.d.). Racial and ethnic disparities in obesity: An in-depth look at the inequities that contribute to higher obesity rates in Black and Latino communities. Trust for America's Health & Robert Wood Johnson Foundation. Retrieved from: https://stateofobesity.org/disparities

12.  Mancini, S., & Harris, J. (2018). Policy changes to reduce unhealthy food and beverage marketing to children in 2016 and 2017. UCONN Rudd Center for Food Policy and Obesity. Retrieved from: http://www.uconnruddcenter.org/files/Pdfs/Food%20marketing%20policy%20brief_Final.pdf
Websites with Related Information
Key Reports and Research
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More Data Sources For Weight