Convert fetal ultrasound measurements to INTERGROWTH z-scores/centiles

igfet_hccm2zscore(gagedays, hccm)

igfet_bpdcm2zscore(gagedays, bpdcm)

igfet_ofdcm2zscore(gagedays, ofdcm)

igfet_accm2zscore(gagedays, accm)

igfet_flcm2zscore(gagedays, flcm)

igfet_hccm2centile(gagedays, hccm)

igfet_bpdcm2centile(gagedays, bpdcm)

igfet_ofdcm2centile(gagedays, ofdcm)

igfet_accm2centile(gagedays, accm)

igfet_flcm2centile(gagedays, flcm)

Arguments

gagedays: gestational age in days
hccm: head circumference (cm) measurement(s) to convert
bpdcm: biparietel diameter (cm) measurement(s) to convert
ofdcm: occipito-frontal diameter (cm) measurement(s) to convert
accm: abdominal circumference (cm) measurement(s) to convert
flcm: femur length (cm) measurement(s) to convert

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 centile for child at 100 gestational days with 11 cm head circumference
igfet_hccm2centile(100, 11)
#> [1] 93.39812