calc_lbw: Calculate lean body weight

In InsightRX/clinPK: Clinical Pharmacokinetics Toolkit

Calculate lean body weight

Description

Get an estimate of lean body weight (LBW, in kg) based on weight, height, and sex.

Usage

calc_lbw(
  weight = NULL,
  bmi = NULL,
  sex = NULL,
  height = NULL,
  method = "green",
  digits = 1
)

Arguments

weight	total body weight in kg
bmi	bmi
sex	sex, either male of female
height	height in cm
method	estimation method, either green (default), boer, james, hume
digits	round to number of digits

Details

Note: technically not the same as fat-free mass, although difference is small.

References: green: Green and Duffull. Clin Pharmacol Ther 2002; james: Absalom AR et al. Br J Anaesth 2009; 103:26-37. James W. Research on obesity. London: Her Majesty's Stationary Office, 1976. hume : Hume R et al. J Clin Pathol. 1966 Jul; 19(4):389-91. boer : Boer P et al. Am J Physiol 1984; 247: F632-5

Value

Returns a list of the following elements:

value	Lean Body Weight (LBW) in units of kg
unit	Unit describing LBW, (kg)

Examples

calc_lbw(weight = 80, height = 170, sex = "male")
calc_lbw(weight = 80, height = 170, sex = "male", method = "james")

InsightRX/clinPK documentation built on June 14, 2025, 9:48 p.m.