“…Adjusted variables were selected after reviewing previous studies [2,3,4,16,17,18,19,20]: age, gender, marital status, educational background, religion, residential area, housing ownership, personal annual income, the activity of daily life (ADL), chronic disease, and perceived health status("how is your health in general?". It was rated on a 5-point Likert scale ranging from 1; very bad to 5; very healthy) [21].…”