iggwg_zscore2value: Convert INTERGROWTH z-scores/centiles to gestational weight...

In ki-tools/growthstandards: Anthropometric Growth Standard Calculations

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

Description

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

Usage

iggwg_zscore2value(gagedays, z = 0, bmi = NULL)

iggwg_centile2value(gagedays, p = 50, bmi = NULL)

Arguments

gagedays	gestational age(s) in days
z	z-score(s) to convert
bmi	optional value(s) of mother's pre-pregnancy BMI (kg / m^2) to check validity of GWG standard
p	centile(s) to convert (must be between 0 and 100)

References

Gestational weight gain standards based on women enrolled in the Fetal Growth Longitudinal Study of the INTERGROWTH-21st Project: a prospective longitudinal cohort study Ismail, Leila Cheikh et al. BMJ 2016;352:i555

Examples

# get value for median GWG for mother at 40 gestational weeks
iggwg_centile2value(40 * 7, 50)

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