Compute "Developmental History [Parent]: Youth birth weight"

Computes the summary score ph_p_dhx_birthweight Developmental History [Parent]: Youth birth weight

• Summarized variables:

  • ph_p_dhx_002__01

  • ph_p_dhx_002__02

• Excluded values: c("999") and any value less than 0

• Notes:

  • Computed using only baseline (ses-00A) and four-year (ses-04A) data

  • The following transformations were made prior to computing the score:

    • if ph_p_dhx_002__01 < 2, set it to 2

    • if ph_p_dhx_002__01 > 15, set it to 15

    • if ph_p_dhx_002__02 > 15 / 16, set it to 15 / 16

  • The following decisions were made based on discordance between baseline and four-year data:

    • if discordance is ≤ 1, take baseline weight

    • if discordance is > 1 and baseline weight is > 4, take baseline weight

    • else if discordance is > 1, take four-year weight

    • else if baseline weight is missing, take four-year weight

    • else, take baseline weight

Usage

vars_ph_p_dhx_birthweight

compute_ph_p_dhx_birthweight(
  data,
  name = "ph_p_dhx_birthweight",
  combine = TRUE
)

Format

vars_ph_p_dhx_birthweight is a character vector of all column names used to compute summary score of ph_p_dhx_birthweight.

Arguments

data

tbl. Data frame containing the columns to be summarized. NOTE: Only baseline and year 4 data has been used for this summary score.

name

character, Name of the new column to be created. Default is the name in description, but users can change it.

combine

logical, If TRUE, the summary score will be appended to the input data frame. If FALSE, the summary score will be returned as a separate data frame.

Value

tbl. The input data frame with the summary score appended as a new column.