iggwg_value2zscore | R Documentation |
Convert mother's gestational weight gain (GWG) measurements to INTERGROWTH z-scores/centiles
iggwg_value2zscore(gagedays, val, bmi = NULL)
iggwg_value2centile(gagedays, val, bmi = NULL)
gagedays |
gestational age(s) in days at which gestational weight gain was measured (must be same length as |
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 |
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
# 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)
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