2.4. Data collection

Demographic data, medical and drug histories had been obtained using a structured questionnaire. Significant use of alcohol was ruled out based on both self‐reported usage as well as the administration of the AUDIT questionnaire. ²¹ Height was measured to the nearest 0.5 cm using a stadiometer (Seca® mechanical column scale with stadiometer), and weight in light clothes was measured to the nearest 0.1 kg using an electronic scale (Omron® BHF‐510). Body mass index (BMI) was computed as the weight in kilogrammes divided by the square of the height in metre (kg/m²). Waist circumference (WC) was measured in centimetres with an inelastic tape measure at the midpoint between the lower margin of the last rib and the top of the iliac crest. Waist‐to‐height ratio (WHtR) was computed by dividing the waist by the height. Hip circumference was measured around the widest portion of the buttocks. Waist‐to‐hip ratio (WtH) was computed by dividing WC by the hip circumference.