All Bioimpedance and Hand-grip Data (Karonga and Lilongwe combined data)

Malawi, 2016 - 2019

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Reference ID

MWI-MEIRU-bioimp-handgrip-combined-v01

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Combined / Harmonized Datasets Karonga HDSS Lilongwe HDSS

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Created on

Nov 14, 2025

Last modified

Nov 18, 2025

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Fat-free mass in KG (value calculated using resistance) (D) (ffmass_R)

Data file: bioimp_handgrip_combined

Overview

Valid: 363

Invalid: 3064

Type: Continuous

Decimal: 0

Start: 232

End: 247

Width: 16

Range: 28.7804069519043 - 76.4474945068359

Format: Numeric

Description

Definition

Fat-free mass in KG (value calculated using resistance)

Imputation and derivation

Derivation

variable: height (table[s]: this dataset)
variable: weight (table[s]: this dataset)
variable: resval (table[s]: this dataset)
variable: sex (table[s]: this dataset)
variable: dropped_R (table[s]: this dataset)

gen ffmass_R=-10.68+(0.65*(height^2/resval))+(0.26*weight)+(0.02*resval) if sex==0 & height~=. & weight~=. & resval~=. //male
replace ffmass_R=-9.53+(0.69*(height^2/resval))+(0.17*weight)+(0.02*resval) if sex==1 & height~=. & weight~=. & resval~=. //female
<remove inconsistent data from combined data:>
foreach var in fatmass_R fatmasspc_R ffmass_R ffmasspc_R {
replace `var'=. if dropped_R==1
}

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