FetalGPS: FetalGPS: Calculate customized centiles of estimated fetal...

In dw1227/FetalGPSR: Centile calculator based on estimated fetal weight growth charts

Description

This package provides functionality to calculate the customized percentile of Estimated Fetal Weight (EFW) based on six growth standards.

Usage

FetalGPS(data, saveToFile = FALSE, filename = "efwCentiles.csv")

Arguments

saveToFile	: Logical value indicating whether or not to export the data to a comma-separated values (CSV) file.
data:	A data frame with the following columns: GA: Gestational Age (days) wt: Maternal Weight (kg). May be left blank if not available. ht: Maternal Height (cm). May be left blank if not available. parity: Number of previous deliveries (Whole number). May be left blank if not available. Sex: Fetal sex (Male or Female or left blank). May be left blank if not available. Race: Maternal race (Black, Asian, Hispanic, White). May be left blank if not available. EFW: Estimated Fetal Weight (g) Based on Hadlock's formula; If this column is not present in the data frame, then the following columns must be provided to calculate EFW internally: AC: Abdominal Circumference (mm) HC: Head Circumference (mm) FL: Femur Diaphysis Length (mm) and/or BPD: Biparietal Diameter (mm)
filename:	Name of the CSV file; Only required if saveToFile = TRUE.

Value

The input data frame with additional columns for the estimated fetal weight and it's percentiles according to six growth standards.

References

Tarca, A.L., et al., A new customized fetal growth standard for African American women: the PRB/NICHD Detroit study. Am J Obstet Gynecol, 2018. 218(2s): p. S679-S691.e4.

Grantz, K.L., et al., Fetal growth standards: the NICHD fetal growth study approach in context with INTERGROWTH-21st and the World Health Organization Multicentre Growth Reference Study. Am J Obstet Gynecol, 2018. 218(2s): p. S641-S655.e28.

Nicolaides, K.H., et al., Fetal Medicine Foundation fetal and neonatal population weight charts. Ultrasound in Obstetrics & Gynecology, 2018. 52(1): p. 44-51.

Stirnemann, J., et al., International estimated fetal weight standards of the INTERGROWTH-21(st) Project. Ultrasound Obstet Gynecol, 2017. 49(4): p. 478-486.

Kiserud, T., et al., The World Health Organization Fetal Growth Charts: A Multinational Longitudinal Study of Ultrasound Biometric Measurements and Estimated Fetal Weight. PLoS medicine, 2017. 14(1): p. e1002220-e1002220.

Hadlock, F.P., R.B. Harrist, and J. Martinez-Poyer, In utero analysis of fetal growth: a sonographic weight standard. Radiology, 1991. 181(1): p. 129-33.

Examples

# Generate sample data with EFW
data=data.frame(GA=c(240,210,266),wt=c(88,92,100),
ht=c(165,165,170),parity=c(0,5,2),
Sex=c("Male","Female",""),Race=c("Black","","Asian"),
EFW=c(2000,2500,2600))
# Compute the EFW centiles for the sample data
 FetalGPS(data)

 # Generate sample data without EFW
data=data.frame(GA=c(200,210,266),wt=c(88,92,100),
ht=c(165,165,170),parity=c(0,5,2),
Sex=c("Male","Female",""),Race=c("Black","","Asian"),
AC=c(220,270,300),
HC=c(250,290,320),
FL=c(55,60,75))

# Compute the EFW centiles for the sample data
 FetalGPS(data)

dw1227/FetalGPSR documentation built on May 14, 2020, 12:33 a.m.