Growth Standards

Convert anthropometric measurements to or from z-scores and centiles using the WHO and INTERGROWTH growth standards. The WHO standard are used for infants, children, and young adults. INTERGROWTH standards are provided for fetal and newborn (including very preterm) calculations.

growthstandards-package growthstandards

growthstandards: Anthropometric Growth Standard Calculations

Data and Coefficients tables

Example subject data cpp and coefficients data.frames for intergrowth (ig_) and the World Health Orginization (who_).

cpp

Subset of growth data from the collaborative perinatal project (CPP)

ig_coefs

List of INTERGROWTH birth standard coefficients

ig_early_coefs

List of INTERGROWTH very preterm birth standard coefficients

who_coefs

List of WHO growth standard coefficients

INTERGROWTH

INTERGROWTH conversion functions

igb_value2centile() igb_value2zscore()

Convert birth measurements to INTERGROWTH z-scores/centiles (generic)

igb_centile2value() igb_zscore2value()

Convert birth measurements to INTERGROWTH z-scores/centiles (generic)

igb_lencm2zscore() igb_wtkg2zscore() igb_hcircm2zscore() igb_wlr2zscore() igb_lencm2centile() igb_wtkg2centile() igb_hcircm2centile() igb_wlr2centile()

Convert birth measurements to INTERGROWTH z-scores/centiles

igb_zscore2lencm() igb_zscore2wtkg() igb_zscore2hcircm() igb_zscore2wlr() igb_centile2lencm() igb_centile2wtkg() igb_centile2hcircm() igb_centile2wlr()

Convert INTERGROWTH z-scores/centiles to birth measurements

INTERGROWTH Fetal

INTERGROWTH fetal conversion functions

igfet_value2zscore() igfet_value2centile()

Convert fetal ultrasound measurements to INTERGROWTH z-scores/centiles (generic)

igfet_hccm2zscore() igfet_bpdcm2zscore() igfet_ofdcm2zscore() igfet_accm2zscore() igfet_flcm2zscore() igfet_hccm2centile() igfet_bpdcm2centile() igfet_ofdcm2centile() igfet_accm2centile() igfet_flcm2centile()

Convert fetal ultrasound measurements to INTERGROWTH z-scores/centiles

igfet_zscore2value() igfet_centile2value()

Convert INTERGROWTH z-scores/centiles to fetal ultrasound measurements (generic)

igfet_zscore2hccm() igfet_zscore2bpdcm() igfet_zscore2ofdcm() igfet_zscore2accm() igfet_zscore2flcm() igfet_centile2hccm() igfet_centile2bpdcm() igfet_centile2ofdcm() igfet_centile2accm() igfet_centile2flcm()

Convert INTERGROWTH z-scores/centiles to fetal ultrasound measurements

INTERGROWTH GWG

INTERGROWTH mother’s gestational weight gain

iggwg_value2zscore() iggwg_value2centile()

Convert mother's gestational weight gain (GWG) measurements to INTERGROWTH z-scores/centiles

iggwg_zscore2value() iggwg_centile2value()

Convert INTERGROWTH z-scores/centiles to gestational weight gains (GWG)

INTERGROWTH Post/Pre

INTERGROWTH postnatal growth for preterm infants

igprepost_centile2value()

Convert postnatal growth measurements for preterm infants to INTERGROWTH z-scores/centiles (generic)

igprepost_value2centile() igprepost_value2zscore()

Convert postnatal growth measurements for preterm infants to INTERGROWTH z-scores/centiles (generic)

igprepost_lencm2zscore() igprepost_wtkg2zscore() igprepost_hcircm2zscore() igprepost_lencm2centile() igprepost_wtkg2centile() igprepost_hcircm2centile()

Convert postnatal growth measurements for preterm infants to INTERGROWTH z-scores/centiles

igprepost_zscore2value()

Convert z-scores to postnatal growth measurements for preterm infants (generic)

igprepost_zscore2lencm() igprepost_zscore2wtkg() igprepost_zscore2hcircm() igprepost_centile2lencm() igprepost_centile2wtkg() igprepost_centile2hcircm()

Convert INTERGROWTH z-scores/centiles to postnatal growth measurements for preterm infants

World Health Orginization (WHO)

WHO conversion functions

who_centile2value() who_zscore2value()

Convert WHO z-scores/centiles to anthro measurements (generic)

who_value2zscore() who_value2centile()

Convert anthro measurements to WHO z-scores/centiles (generic)

who_wtkg2zscore() who_htcm2zscore() who_lenhtcm2zscore() who_lencm2zscore() who_bmi2zscore() who_hcircm2zscore() who_muaccm2zscore() who_ssftmm2zscore() who_tsftmm2zscore() who_wtkg2centile() who_htcm2centile() who_lenhtcm2centile() who_lencm2centile() who_bmi2centile() who_hcircm2centile() who_muaccm2centile() who_ssftmm2centile() who_tsftmm2centile()

Convert anthro measurements to WHO z-scores/centiles

who_zscore2htcm() who_zscore2lenhtcm() who_zscore2lencm() who_zscore2wtkg() who_zscore2bmi() who_zscore2hcircm() who_zscore2muaccm() who_zscore2ssftmm() who_zscore2tsftmm() who_centile2htcm() who_centile2lenhtcm() who_centile2lencm() who_centile2wtkg() who_centile2bmi() who_centile2hcircm() who_centile2muaccm() who_centile2ssftmm() who_centile2tsftmm()

Convert WHO z-scores/centiles to anthro measurements

Plotting functions for use with ggplot2 and lattice

Add growth standard bands to plots

panel.who() panel.igb() panel.igfet() geom_growthstandard() geom_who() geom_igb() geom_igfet()

Utility functions for adding growth standard bands to ggplot2/lattice plots

panel.zband() geom_zband()

Utility functions for adding growth standard bands to ggplot2/lattice plots

Conversion functions

Functions to convert between units and to get data

cm2in() in2cm() lb2kg() kg2lb() days2years() years2days() days2months() months2days() months2years() years2months()

Unit conversion utility functions