Estimate fetal weight in grams using the INTERGROWTH-21st predictive equation

Estimate fetal weight in grams using the INTERGROWTH-21^st predictive equation

Usage

ig_fet_estimate_fetal_weight(abdocirc_mm, headcirc_mm)

Arguments

abdocirc_mm: Numeric vector with abdominal circumference value(s) in mm. Should have length one or same length as headcirc_mm.
headcirc_mm: Numeric vector with head circumference value(s) in mm. Should have length one or same length as abdocirc_mm.

Value

Numeric vector with estimated fetal weight(s) in g, with the same length as the longest input vector.

Note

Inputs are recycled using vctrs::vec_recycle_common().

References

Stirnemann J, Villar J, Salomon LJ, Ohuma EO, Lamber A, Victoria CG et al. International Estimated Fetal Weight Standards of the INTERGROWTH-21st Project. Ultrasound Obstet Gynecol 2016, 49:478-486 doi:10.1002/uog.17347

Examples

# Estimate fetal weight in grams
ig_fet_estimate_fetal_weight(abdocirc_mm = 31:33,
                             headcirc_mm = 25:27)
#> [1] 176.1847 176.8672 177.5590

# Input vectors are recycled using vctrs::vec_recycle_common
ig_fet_estimate_fetal_weight(abdocirc_mm = 25.0,
                             headcirc_mm = 24:26)
#> [1] 174.9972 175.5469 176.0984