SLIDE 1 BMI Report for Sampled CCSD Students: 2010‐2013 BMI Report for Sampled CCSD Students: 2010 2013
Michael Tsai, MPH February 21, 2014
SLIDE 2 Legislative History
- 2003 – Senate Concurrent Resolution No. 13 directed the Legislative
C itt H lth C ’ S b itt t d t i t i Committee on Health Care’s Subcommittee to conduct an interim study of the Medical and Societal Costs and Impacts of Obesity in Nevada.
- 2007 – Assembly Bill 354 required the collection of height and
2007 Assembly Bill 354 required the collection of height and weight data in a representative sample of Nevada students in 4th, 7th, 10th grades until June 30, 2010.
- 2009 – Assembly Bill 191 extended the period for data collection of
height and weight data beyond the sunset date to June 30, 2015 and also authorized a school district to conduct the examinations in
Senate Bill 442 limits height and weight data collection to
- 2013 – Senate Bill 442 limits height and weight data collection to
school districts in a county whose population is 100,000 or more (currently Clark and Washoe Counties) and ends requirement on June 30, 2015.
SLIDE 3 Data Collection In Clark County
- Clark County School District (CCSD) chose to collect measurements
l f it t d t ithi th d l l d t th
- n a sample of its students within these grade levels due to the
large population size of its student body.
- Data was collected from a convenience sample on the heights and
weights of 4th 7th and 10th graders weights of 4th, 7th, and 10th graders.
- Using a sample methodology provided by Nevada State Health
Division (NSHD), a total of 19 schools (12 elementary, 4 middle, and 3 high schools) were selected to participate.
- AB 354 was an unfunded mandate – school nurses were chosen to
collect data on sampled students without financial support for additional staff, placing additional burden on existing responsibilities and resources responsibilities and resources.
SLIDE 4
BMI Percentile
The following example demonstrates how sample BMI numbers would be interpreted for a 10‐ The following example demonstrates how sample BMI numbers would be interpreted for a 10 year‐old boy:
SLIDE 5
Weight Status, 2010‐2011 School Year
40.0% 40 0% 45.0% 33.2% 30.0% 35.0% 40.0% 18.0% 22.9% 15 0% 18.2% 20.0% 25.0% 15.0% 5 0% 10.0% 15.0% 0.0% 5.0% Overweight or Obese Overweight Obese CCSD NHANES
SLIDE 6
Weight Status by gender, 2010‐2011 School Year
45.0% 50.0% 35.0% 40.0% 26.3% 19.8% 19.6% 16.5% 25.0% 30.0% Obese O i ht 10 0% 15.0% 20.0% Overweight 17.6% 14.2% 18.4% 15.9% 0 0% 5.0% 10.0% 0.0% CCSD NHANES CCSD NHANES Males Females
SLIDE 7 Communities Putting Prevention to Work (CPPW)
- Established a “Prevention First” position responsible
for coordinating screenings with schools.
- Developed a more robust data collection protocol and
conducted trainings for CCSD staff involved in data conducted trainings for CCSD staff involved in data collection.
- Secured standardized equipment for data collection:
scales and stadiometers scales and stadiometers.
- Funding was used solely to improve data quality.
- No schools were added and the sampling strategy
p g gy remained the same.
- CCSD nursing staff was still responsible for data
collection collection.
SLIDE 8
CPPW Data, 2011‐2012 School Year
50.0% 40.0% 43.0% 35.0% 40.0% 45.0% 18.0% 22.9% 19.0% 24.0% 20.0% 25.0% 30.0% 5.0% 10.0% 15.0% 0.0% 5.0% Overweight or Obese Overweight Obese 2010 11 2011 12 2010‐11 2011‐12
SLIDE 9
CPPW Data, 2011‐2012 School Year
45.0% 50.0% % 35.0% 40.0% 26.3% 28.1% 19.6% 19.4% 25.0% 30.0% Obese O i ht 20 0% 10 0% 15.0% 20.0% Overweight 17.6% 18.1% 18.4% 20.0% 0 0% 5.0% 10.0% 0.0% 2010‐11 2011‐12 2010‐11 2011‐12 Males Females
SLIDE 10
Sampled CCSD Students 2010‐2013
30.0% 23.2% 24.0% 23.7% 25.0% 18.5% 19.0% 17 5% 20.0% Overweight Ob 17.5% 15.0% Obese 10 0% 10.0% 2010‐11 2011‐12 2012‐13
SLIDE 11
Sampled CCSD Students 2010‐2013
55.0% 48.0% 49.7% 46.8% 50.0% 41.9% 39 3% 45.0% White, NH Black, NH 34.4% 34.7% 34.5% 39.3% 39.0% 35 0% 40.0% Hispanic 34.4% 30 0% 35.0% 30.0% 2010‐11 2011‐12 2012‐13
SLIDE 12
Weight Status by gender, 2012‐2013 School Year
60.0% 40 0% 50.0% 20 3% 33.4% 14 0% 23.3% 30.0% 40.0% Obese O i ht 20.3% 14.0% 20.0% Overweight 15.8% 17.4% 18.6% 19.4% 0 0% 10.0% 0.0% White, NH Hispanic White, NH Hispanic Males Females
SLIDE 13
Self‐reported vs. Measured data, 2011‐2012
l ifi i hi l k f i i i BMI Classification White or Caucasian (NH) Black or African American (NH) Hispanic CCSD YRBSS CCSD YRBSS CCSD YRBSS h / b Overweight/Obese 32.9% 20.8% 41.0% 35.9% 48.3% 33.2% Overweight 15.3% 12.9% 17.0% 18.7% 20.0% 19.4% g Obese 17.6% 7.9% 24.0% 17.2% 28.3% 13.8%
SLIDE 14 Benefits of BMI Surveillance
- Measured data is generally more accurate and
g y reliable compared to self‐reported data.
- School based BMI surveillance programs can
increase parental awareness of weight risk in increase parental awareness of weight risk in children.
- Identify demographic or geographic subgroups at
Identify demographic or geographic subgroups at greatest risk of obesity to target prevention and treatment programs. M i d l b i l d
- Monitor and evaluate obesity related
grant/funding objectives and school‐based programs. p g
SLIDE 15
Questions
Michael Tsai, MPH Ch i i id i l i Chronic Disease Epidemiologist 702‐759‐1387 tsai@snhdmail.org
