A Study of Obesity Risk in Children in a Head

question 6

Multiple Choice

A study of obesity risk in children in a head start program used a food score calculated from a 45-question food survey to predict body mass index (BMI) percentile in these children 18 months after the initial survey. The study enrolled 20 children. The researchers used a linear regression model for the prediction of BMI percentile. The food scores ranged from 45 to 245. The linear regression had slope = 0.29 and intercept = 18.3. The average BMI percentile for a child with food score 150 equals 61.8, and an individual child with food score 150 will be predicted to have a BMI percentile of:

• A)18.3.
• B)61.8.
• C)80.1.
• D)43.5.

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Definitions:

Thrombophlebitis

Inflammation of a vein associated with the formation of a blood clot.

Varicosities

Abnormally enlarged, twisted veins that typically appear in the legs, caused by weakened valves and veins that struggle to return blood to the heart.

Cardiac Notch

A concavity in the left lung's surface that accommodates the space the heart occupies in the chest cavity.

Spleen

An organ located under the ribcage and above the stomach in the left upper quadrant of the abdomen, playing a part in both immune response and the destruction of old or damaged red blood cells.