Convert INTERGROWTH z-scores/centiles to fetal ultrasound measurements

igfet_zscore2hccm(gagedays, z = 0)

igfet_zscore2bpdcm(gagedays, z = 0)

igfet_zscore2ofdcm(gagedays, z = 0)

igfet_zscore2accm(gagedays, z = 0)

igfet_zscore2flcm(gagedays, z = 0)

igfet_centile2hccm(gagedays, p = 50)

igfet_centile2bpdcm(gagedays, p = 50)

igfet_centile2ofdcm(gagedays, p = 50)

igfet_centile2accm(gagedays, p = 50)

igfet_centile2flcm(gagedays, p = 50)

Arguments

gagedays: gestational age in days
z: z-score(s) to convert
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_centile2hccm(100, 50)
#> [1] 10.14404