“…Twelve surveys from Europe [12,13,14,15,16,17,18] including a survey from Malta, three surveys from India [19,20,21], two surveys from China and three surveys from Japan [22,23,24] fulfilled these criteria and were included in the study. A total of 29,369 subjects (14,240 men and 15,129 women) who were 30 to 89 years of age were included in the analysis (Table 1).…”