Childhood ObesityCompare This Metric
Percent of New York City public school children (ages 5-18) with a BMI above the 95th percentile for their age and sex.
Number of public school children with a BMI above the 95th percentile divided by the total number of public school children for whom BMI is measured.
NYC Department of Education Fitnessgram Data, 2011-2013. Used with permission from New York University's Institute for Education and Social Policy.
Years of Data
City Wide Average
In statistics, correlation is a measure of association between two numeric variables. The strength of correlation between two variables is represented by the correlation coefficient, represented by the abbreviation r. Correlation coefficients range between -1 to 1.
Though the correlation coefficient indicates the strength of an association, it does not provide information about whether the change in one variable is caused by the other.
For example, if the correlation between adult smoking prevalence and child poverty is 0.7—a strong correlation—we cannot say either that adult smoking causes child poverty or, inversely, that child poverty causes smoking. We only know that as one of these variables increases, the other tends to increases.