Using a previously created weight management program for adolescents, the intervention will be implemented through school-based health centers (SBHC) and will be delivered by SBHC providers trained in Motivational Interviewing. Students at intervention school sites will be compared to students at control school sites. All students will have baseline, 1 year, and 2 year follow-up to assess if students in the intervention school sites will have improved risk factor profile for metabolic syndrome, improved nutrition and increased physical activity when compared with students at control school sites.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
991
School-based health center providers will use motivational interviewing to assist students with adopting strategies for improving nutrition and increasing physical activity. All participants will receive annual BMI and other health results discussion with clinical providers. Adolescents with overweight/obesity will meet with providers for 16 sessions over 2 years.
A letter containing BMI and other health results and obesity prevention recommendations will be sent to parent/guardians.
Alberta S Kong, MD, MPH
Albuquerque, New Mexico, United States
Number and Proportion of Participants With Baseline BMI <85th Percentile Who Developed Overweight or Obesity by the End of the Study
Number and percentage of students who had a baseline BMI \<85th percentile who had a BMI\>= 85th percentile (overweight or obese) at endline
Time frame: Baseline to two years
Change in Physical Activity
Change in minutes of moderate-to-vigorous physical activity as measured by accelerometer for participants who had a baseline BMI \<85th percentile and endline data
Time frame: Baseline to two years
Change in Reported Added Sugar Intake
Reported change in added sugar intake as measured by the Block Kids Food Screener-Last Week for Ages 2-17 for students who had a baseline BMI \<85th percentile and endline data
Time frame: Baseline to two years
Change in Reported Fruit, Vegetables, and Legume Intake (Not Including Potatoes)
Change in reported fruit, vegetables, and legume intake (not including potatoes) for students who had a baseline BMI \<85th percentile and endline data
Time frame: Baseline to two years
Change in BMI Z-score
Change in body-mass index (BMI; weight in kilograms divided by the square of the body height in meters) Z-score for students who had a baseline BMI \>= 85th percentile (overweight or obese) and endline data. A Z-score of 0 represents the population mean. A Z-score above 2 indicates obesity (BMI \>2 standard deviations above the mean) in children and teens. A decline in BMI Z-score would be a positive outcome in this weight management study.
Time frame: Baseline to two years
Change in HOMA-IR
Change in Homeostatic Model Assessment for Insulin Resistance (HOMA-IR; insulin resistance index) for students who had a baseline BMI \>= 85th percentile (overweight or obese) and endline data. HOMA-IR is calculated using the formula: (fasting glucose \[mg/dL\] x fasting insulin \[microU/mL\])/405. HOMA-IR values \>2 indicate insulin resistance. A decrease in HOMA-IR would be a positive outcome.
Time frame: Baseline to two years
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