igprepost_value2zscore: Convert postnatal growth measurements for preterm infants to...

In HBGDki/growthstandards: Anthropometric Growth Standard Calculations

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

Description

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

Usage

igprepost_value2centile(pmagedays, val, var = "lencm", sex = "Female")

igprepost_value2zscore(pmagedays, val, var = "lencm", sex = "Female")

Arguments

pmagedays	postmenstrual age in days
val	the value(s) of the anthro measurement to convert
var	the name of the measurement to convert ("lencm", "wtkg", "hcircm")
sex	"Male" or "Female"

References

Postnatal growth standards for preterm infants: the Preterm Postnatal Follow-up Study of the INTERGROWTH-21st Project. Villar J, Giuliani F, Bhutta ZA, et al. Lancet Glob Health 2015; 3: e681–91.

Examples

# get centile of 0.99kg 27 week postmenstrual age Male and 0.91kg 27 week postmenstrual age Female
igprepost_value2centile(27 * 7, c(0.99, 0.91), var = "wtkg",
  sex = c("Male", "Female"))

HBGDki/growthstandards documentation built on Jan. 14, 2024, 4:03 a.m.