2.3. Measurement of Anthropometric and Biochemical Parameters
hypertension, diabetes
DIABETES, HYPERTENSION, -20
Participants underwent five examinations: at baseline; 2, 4, and 12 weeks after their second COVID-19 vaccination, and 4 weeks after their third vaccination. At each visit, body weight, height, systolic blood pressure (SBP), and diastolic blood pressure (DBP) were recorded. Height and weight were obtained with subjects wearing light indoor clothing without shoes to the nearest 0.1 cm (Seca 225, Hamburg, Germany) and 0.1 kg, respectively (GL-6000-20, Gyeonggi, Republic of Korea). SBP and DBP values were measured three times in a seated position after a 5 min rest using a standard mercury sphygmomanometer (Baumanometer, Gresham, OR, USA). At baseline, we measured cholesterol metabolites and surveyed smoking status and alcohol consumption. Subjects were categorized into non-smoker and current smoker groups. Current drinkers were defined as those who drank alcohol more than once a month. We adopted binary variables of presence or absence for a history of hypertension and diabetes on a self-reported questionnaire. Body mass index (BMI) was calculated as the ratio of weight (kg)/height (m