Table 1.

Baseline patient characteristics*

Characteristic	WLI group (n=2258)	2G-NBI group (n=2265)
Age, years†	70.6±7.5	70.6±7.5
Male sex, n (%)	1753 (77.6)	1774 (78.3)
Indication, n (%)
Current oesophageal cancer	12 (0.5)	10 (0.4)
History of oesophageal cancer	373 (16.5)	378 (16.7)
Current gastric neoplasm‡	68 (3.0)	81 (3.6)
History of gastric neoplasm‡	1805 (80.0)	1796 (79.3)

*There were no significant differences between the two groups.

†Mean±SD.

‡Gastric neoplasms included gastric cancers and gastric adenomas.

WLI, white light imaging; 2G-NBI, second-generation narrow band imaging.