CDC {cNORM} | R Documentation

## BMI growth curves from age 2 to 25

### Description

By the courtesy of the Center of Disease Control (CDC), cNORM includes human growth data for children and adolescents age 2 to 25 that can be used to model trajectories of the body mass index and to estimate percentiles for clinical definitions of under- and overweight. The data stems from the NHANES surveys in the US and was published in 2012 as public domain. The data was cleaned by removing missing values and it includes the following variables from or based on the original dataset.

### Usage

    CDC

### Format

A data frame with 45053 rows and 7 variables:

age

  continuous age in years, based on the month variable

group

  age group; chronological age in years at the time of examination

month

  chronological age in month at the time of examination

sex

  sex of the participant, 1 = male, 2 = female

height

  height of the participants in cm

weight

  weight of the participants in kg

bmi

  the body mass index, computed by (weight in kg)/(height in m)^2

A data frame with 45035 rows and 7 columns

### Source

https://wwwn.cdc.gov/nchs/nhanes/OtherNhanesData.aspx

### References

CDC (2012). National Health and Nutrition Examination Survey: Questionnaires, Datasets and Related Documentation. available https://wwwn.cdc.gov/nchs/nhanes/OtherNhanesData.aspx (date of retrieval: 25/08/2018)

[Package cNORM version 2.0.3 Index]