igfet_zscore2value: Convert INTERGROWTH z-scores/centiles to fetal ultrasound...

In ki-tools/growthstandards: Anthropometric Growth Standard Calculations

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

Description

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

Usage

igfet_zscore2value(
  gagedays,
  z = 0,
  var = c("hccm", "bpdcm", "ofdcm", "accm", "flcm")
)

igfet_centile2value(
  gagedays,
  p = 50,
  var = c("hccm", "bpdcm", "ofdcm", "accm", "flcm")
)

Arguments

gagedays	gestational age in days
z	z-score(s) to convert
var	the name of the measurement to convert ("hccm", "bpdcm", "ofdcm", "accm", "flcm")
p	centile(s) to convert (must be between 0 and 100)

References

International standards for fetal growth based on serial ultrasound measurements: the Fetal Growth Longitudinal Study of the INTERGROWTH-21st Project Papageorghiou, Aris T et al. The Lancet, Volume 384, Issue 9946, 869-879

Examples

# get value for median head circumference for child at 100 gestational days
igfet_centile2value(100, 50, var = "hccm")

ki-tools/growthstandards documentation built on Jan. 4, 2024, 2:04 a.m.