advice_hdc: Referral advice for head circumference

In growthcharts/growthscreener: Finding Children with Unusual Growth Patterns

Referral advice for head circumference

Description

This function traverses a decision tree for head circumference for children below the age of 1.

Usage

calculate_advice_hdc(
  sex = NA_character_,
  ga = NA,
  dob = NA_character_,
  dom = NA_integer_,
  y = NA,
  test_gain = TRUE,
  verbose = FALSE
)

Arguments

sex	Character, either "male" or "female"
ga	Gestational age, completed weeks (Integer or character)
dob	Date of birth (yyyymmdd). Required if dom is supplied as a date string.
dom	Vector with dates of measurements. Either supplied as age in decimal years or a date in the format yyyymmdd.
y	Head circumference (cm)
test_gain	Logical. Should the increase or decrease in Z-scores be tested? The default is TRUE.
verbose	Set to TRUE to obtain warnings on reference finding.

Details

The decision tree assesses both single and paired measurements. The observation corresponding to the oldest age is taken is the current measurement.

Value

calculate_advice_hdc returns an integer, the msgcode, between 3000-3999.

Author(s)

Arjan Huizing, Stef van Buuren, 2020

Examples

msg(calculate_advice_hdc())
msgcode <- calculate_advice_hdc(sex = "female",
                                dom = c(0.2491, 0.6653),
                                y = c(36, 40))
msg(msgcode)

growthcharts/growthscreener documentation built on Oct. 25, 2024, 4:07 p.m.