Using random-forest multiple imputation to address bias of self-reported anthropometric measures, hypertension and hypercholesterolemia in the Belgian health interview survey

Table 1 Definition of indicators from the Belgian health interview survey (BHIS) and the Belgian health examination survey (BELHES)

Indicator	Variable definition in the BHIS (SR data)	Variable definition in the BELHES (Measured data)
BMI	SR weight (kg)/(SR height (m)) ²	Measured weight (kg)/(Measured height (m)) ²
Weight	SR weight (kg)	Measured weight (kg)
Height	SR height (cm)	Measured height (cm)
Overweight	BMI, based on SR data ≥ 25 kg/m²	BMI, based on measured data ≥ 25 kg/m²
Obesity	BMI, based on SR data ≥ 30 kg/m²	BMI, based on measured data ≥ 30 kg/m²
Hypertension	Has answered “Yes” to question “Did you suffer from hypertension in the last 12 months?”	Systolic blood pressure ≥ 140 mmHg or diastolic blood pressure > 90 mmHg or medication use for hypertension
Hypercholesterolemia	Has answered “Yes” to question “Did you suffer from high cholesterol in the last 12 months?”	Total serum cholesterol > 190 mg/dl

ISSN: 1471-2288