iggwg_value2zscore: Convert mother's gestational weight gain (GWG) measurements...

In ki-tools/growthstandards: Anthropometric Growth Standard Calculations

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

Description

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

Usage

iggwg_value2zscore(gagedays, val, bmi = NULL)

iggwg_value2centile(gagedays, val, bmi = NULL)

Arguments

gagedays	gestational age(s) in days at which gestational weight gain was measured (must be same length as val)
val	value(s) of the gestational weight gain (kg gained since pregnancy) measurement(s) to convert
bmi	optional value(s) of mother's pre-pregnancy BMI (kg / m^2) to check validity of GWG standard

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 z-score and centile for mother at 17 weeks with 2 kg gestational weight gain
iggwg_value2zscore(17 * 7, 2)
iggwg_value2centile(17 * 7, 2)

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