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State of Alaska

Health Indicator Report of Student Weight Status Surveillance System (SWSSS)

Childhood obesity is the predominant public health threat facing this generation today. Obese children today suffer from serious conditions that used to occur only in adulthood, including type 2 diabetes, high blood pressure, and high cholesterol.^2^ If we don't act now, children today may be the first generation to live shorter, less healthy lives than their parents.^3^ Nationally, 300,000 premature deaths each year are associated with people being overweight or obese.^4^ The issue costs hundreds of millions of dollars in medical expenses in Alaska, and billions across the nation.^5^ Surveillance of weight status is essential in order to monitor trends and evaluate efforts aimed at reducing the prevalence of obesity. [[br]] [[br]] ---- {{class .SmallerFont 2. U.S. Department of Health and Human Services. The Surgeon General's Vision for a Healthy and Fit Nation. [https://www.ncbi.nlm.nih.gov/books/NBK44660/pdf/Bookshelf_NBK44660.pdf]. Published 2010. Accessed November 18, 2016. 3. Olshansky SJ, Passaro DJ, Hershow RC, Layden J, et al. A Potential Decline in Life Expectancy in the United States in the 21st Century. N Engl J Med 2005;352(11):1138-45. 4. Flegal KM, Williamson DF, Pamuk ER, Rosenberg HM. Estimating Deaths Attributable to Obesity in the United States. Am J Public Health 2004;94(9):1486-9. 5. Trogdon JG, Finkelstein EA, Feagan CW, Cohen JW. State- and Payer-Specific Estimates of Annual Medical Expenditures Attributable to Obesity. Obesity 2012;20(1):214-20. }}

Notes

Response rates are based upon the number of students with valid measures divided by the official enrollments from October. As student enrollments can increase during the academic years, the percentage measured relative to enrollments at a single point in time can exceed 100%. Alaska Gateway School District consisted of only schools in Tok and Eagle in 2013-14. Due to low enrollments relative to the suppression level of 100 or more students, data from Alaska Gateway School District due not appear in the InstantAtlas presentations. In 2013-14, Ketchikan School District provided data for grades K-12. In subsequent submittals only measurements from grades K, 1, 3, 5, and 7 were included.

Data Interpretation Issues

One limitation of SWSSS is that height and weight measurements are not collected through a scientific sampling procedure, but are obtained as part of the routine school health screening process with the intent to reach a census in the grades measured. There is variation across school district, grade, and school years in the percentage of enrolled students who contribute to SWSSS. However, because in most school districts efforts are made to screen all students in grades K, 1, 3, 5, 7, it is unlikely that the prevalence of overweight and obesity is subject to a bias that would result in the disproportionate selection of more obese students. To minimize bias, the data are weighted to district enrollment by race, sex, and grade. There may be variation in the measurement procedures and equipment implemented by districts. There are not enough school nurses to collect all height and weight measurements in all schools, and teachers and other school staff help perform this task. However, at each district, a school nurse or a public health nurse has oversight of the measurements, and DHSS offers a free online training in measurement protocol to all districts, located at [http://anthc.adobeconnect.com/p3bundbielk/]. Both within and between districts, schools use different types of height and weight measurement equipment. While the variations in procedures and equipment likely result in some degree of random error, it is unlikely the variations would be responsible for systematic under- or over-estimation of weight status. Participating school districts also vary in the exact methods they use to extract health record data. To minimize this variation, district contacts are provided a detailed list of required and optional data elements. There is no specific required response rate, but for confidentiality and data quality, data are not reported in groups of less than 30 individuals. Data go through a validation process as defined by the CDC in the 2015 YRBS Data Guide.^1^

Definition

The [http://dhss.alaska.gov/dph/InfoCenter/Pages/ia/swsss/swsss_health_profiles.aspx Alaska Student Weight Status Surveillance System (SWSSS)] is comprised of Alaska student weight status data obtained voluntarily from school districts that have contributed their data as a means of monitoring obesity trends. Participating school districts provide the Alaska Department of Health and Social Services (DHSS) de-identified student data (i.e., measured height and weight, age, and sex). DHSS conducts the analysis to generate body mass index (BMI), BMI percentile, and the associated weight status classifications of underweight, healthy weight, overweight, and obese. DHSS accepts data for all grades measured in participating districts (pre K-12) and provides district level reports on an annual basis in July for the previous school year. The emphasis is on grades K, 1, 3, 5, and 7, which are the grades utilized as Healthy Alaskans 2020 indicators of overweight and obesity among children.

Numerator

Numerators consist of the weighted number of students whose height and weight were measured in participating school districts in the SWSSS with sex- and age-specific BMI percentiles in the weight class of interest (underweight, healthy weight, overweight, or obese).

Denominator

Denominators consist of the number of students enrolled in participating school districts in the SWSSS.

Healthy People Objective: Reduce the proportion of children and adolescents who are considered obese: Children aged 6 to 11 years

U.S. Target: 15.7 percent
State Target: HA 2020 Target: 15%

Other Objectives

Healthy Alaskans 2020 Indicator 5.b.i: Reduce the percentage of children (students in grades K-8) who meet criteria for overweight (age- and sex-specific body mass index of 85th to <95th percentile) to 15% by 2020. Healthy Alaskans 2020 Indicator 5.b.ii: Reduce the percentage of children (students in grades K-8) who meet criteria for obesity (age- and sex-specific body mass index of <95th percentile) to 15% by 2020.

How Are We Doing?

Results of the SWSSS are described in detail on the [http://dhss.alaska.gov/dph/InfoCenter/Pages/ia/instantatlas.aspx Informed Alaskans] website for the Alaska Student Weight Status Surveillance System (SWSSS) Health Profiles: School Districts at [http://dhss.alaska.gov/dph/InfoCenter/Pages/ia/swsss/swsss_health_profiles.aspx]. Data by school district are displayed at [http://www.hss.state.ak.us/instantatlas/swsss/sm/cr/sd/atlas.htm].

What Is Being Done?

The mission of the Obesity Prevention and Control Program is to prevent and reduce obesity among Alaskans though the promotion of physical activity and good nutrition. More information about key program efforts can be found at [http://dhss.alaska.gov/dph/chronic/pages/obesity/default.aspx].
Page Content Updated On 12/09/2016, Published on 12/09/2016
The information provided above is from the Alaska Department of Health and Social Services' Center for Health Data and Statistics, Alaska Indicator-Based Information System for Public Health (Ak-IBIS) web site (http://ibis.dhss.alaska.gov). The information published on this website may be reproduced without permission. Please use the following citation: " Retrieved Sat, 21 July 2018 from Alaska Department of Health and Social Services, Center for Health Data and Statistics, Alaska Indicator-Based Information System for Public Health web site: http://ibis.dhss.alaska.gov ".

Content updated: Tue, 20 Dec 2016 08:33:58 AKST
The information provided above is from the Alaska Department of Health and Social Services' Center for Health Data and Statistics AK-IBIS web site (http://ibis.dhss.alaska.gov/). The information published on this website may be reproduced without permission. Please use the following citation: " Retrieved Sat, 21 July 2018 1:50:51 from Alaska Department of Health and Social Services, Center for Health Data and Statistics, Indicator-Based Information System for Public Health Web site: http://ibis.dhss.alaska.gov/ ".

Content updated: Tue, 20 Dec 2016 08:33:58 AKST