Add Body Mass Index measurement

Add Body Mass Index measurement

Usage

addBMI(
  x,
  conceptSet = NULL,
  indexDate = "cohort_start_date",
  window = c(-Inf, 0),
  order = "last",
  nameStyle = "bmi",
  categories = NULL,
  name = tableName(x)
)

Arguments

x

A cdm_table object, it mus contain person_id or subject_id as columns.

conceptSet

It can either be a , <codelist_with_details> or <concept_set_expression> object. It must contain obesity, bmi as concepts. If NULL concepts will be retrieved using the OmopConcepts package.

indexDate

A character string that points to a Date column in the x table.

window

Window to asses obesity in, it must be a vector of two numeric values c(min, max). Window times refer to days since indexDate.

order

A character vector with the options to deal with multiple values per person:

• last: Latest value within the window.

• first: First value within the window.

• max: Maximum value within the window.

• min: Minimum value within the window.

nameStyle

A character string with the name of the new column.

categories

List to group the bmi records into categories.

name

A character string with the name of the new table. If NULL a temporary table will be created.

Value

A new table with the new column.

Examples

library(OmopIndices)