Table 1

Baseline characteristics of screening participants and the endoscopic findings

Baseline variables200420082012201420162018
No of participants412113382479253927352907
No of Helicobacter pylori infection (%)2598 (63.0)179 (13.4)705 (28.4)371 (14.6)281 (10.3)450 (15.5)
Mean age, year (SD)59.1 (13.6)52.8 (11.0)50.9 (12.7)51.9 (12.9)52.3 (13.2)52.7 (13.2)
Male sex, %48.749.748.348.749.449.2
No of new participant (%)4121 (100)89 (6.7)945 (38.1)494 (19.5)402 (14.7)461 (15.9)
No of H. pylori infection in new participants (%)2598 (63.0)41 (46.1)474 (50.2)195 (39.5)146 (36.3)182 (39.5)
No of endoscopy176284139188256167
 Active peptic ulcer, %193 (11.0)30 (3.6)68 (17.3)14 (15.9)34 (7.5)5 (3.0)
 Gastric cancer (%)9 (0.5)1 (0.1)3 (0.8)2 (2.3)2 (0.8)2 (1.2)
 Reflux oesophagitis (%)241 (13.7)230 (27.3)97 (24.8)26 (29.5)61 (23.8)36 (21.6)
 Barrett’s oesophagus (%)02 (0.2)3 (0.8)01 (0.4)1 (0.6)
 Oesophageal cancer (%)0001 (1.1)00