Pediatric Growth Standard Charts

Growth standards based on data from the Centers for Disease Control and the World Health Organization.

Usage

gs_chart(
  metric,
  male = 0:1,
  source = getOption("pedbp_pgs_source", "CDC"),
  p = c(0.01, 0.05, 0.1, 0.25, 0.5, 0.75, 0.9, 0.95, 0.99)
)

Arguments

metric

character string, one of the growth standards

male

integer value, 1 = male, 0 = female

source

a character string denoting the data source providing the parameters needed for the estimate. Valid values are "CDC" and "WHO". This can be set explicitly, or by using the pedbp_pgs_source option.

p

a numeric vector of the probabilities, provided in values between 0 and 1, to plot

Value

A ggplot object

Notes

CDC Recommends using WHO growth charts for infants and children ages 0 to 2 years of age in the U.S. and CDC growth charts to monitor growth for children age 2 years and older in the U.S.

References

https://www.cdc.gov/growthcharts/percentile_data_files.htm, https://www.who.int/tools/child-growth-standards/standards

See also

• Distribution functions:

  • bmi_for_age

  • head_circumference_for_age

  • height_for_age

  • length_for_age

  • weight_for_age

  • weight_for_length

  • weight_for_height

• Plotting functions:

  • gs_chart

  • gs_cdf

• Vignette:

  • vignette(topic = "growth-standards", package = "pedbp")

Examples

gs_chart("bmi_for_age", male = 0)

gs_chart("bmi_for_age", male = 1)

gs_chart("bmi_for_age", male = 0:1)


# add a point for a specific patient
pt <- data.frame(p = 0.82, age = 156, bmi = q_bmi_for_age(p = 0.82, male = 1, age = 156))
gs_chart("bmi_for_age", male = 1) +
  ggplot2::geom_point(data = pt, mapping = ggplot2::aes(x = age, y = bmi))


# select specific percentiles to plot
gs_chart("weight_for_height", male = 0:1, p = c(0.10, 0.80))