Retrospective Cohort Study
Copyright ©The Author(s) 2021.
World J Gastrointest Endosc. Oct 16, 2021; 13(10): 491-501
Published online Oct 16, 2021. doi: 10.4253/wjge.v13.i10.491
Table 2 Comparison between Group gastrointestinal endoscopy and Group non- gastrointestinal endoscopy

Group GE n = 164
Group non-GE n = 358
P value
Sex, male153 (93.3%)321 (89.7%)0.197
Age, median, yr68 (42–90)67 (37–92)0.278
Asymptomatic/Symptomatic101 (61.6%)/63 (38.4%)26 (7.3%)/332 (92.7%)< 0.001
Indication for examination< 0.001
Investigation of symptoms46 (28.0%)325 (90.8%)
Incidental EGD47 (28.7%)0
f/u or diagnostic work-up of ESCC64 (39.0%)2 (0.6%)
f/u or diagnostic work-up of HN7 (4.3%)10 (2.8%)
Incidental dental check07 (2.0%)
Other014 (3.9%)
Location oropharynx/hypopharynx26 (15.9 %)/138 (84.1%)170 (47.5%)/188 (52.5%)< 0.001
History or concurrent of ESCC, y/n84 (51.2%)/8061 (17.0%)/297< 0.001
cTis-1/cT2-454 (32.9%)/11043 (12.0%)/315< 0.001
cN -/+114 (69.5%)/5068 (19.0%)/290< 0.001
cM -/+161 (98.2%)/3343 (95.8%)/150.205
Treatment
ELPS/ESD35 (21.3%)2 (0.6%)< 0.001
Non-ELPS/ESD129 (78.7%)356 (99.4%)
Surgery23 (14.0%)79 (22.1%)
RT/CRT84 (51.2%)212 (59.2%)
Chemotherapy5 (3.0%)13 (3.6%)
BSC9 (5.5%)40 (11.2%)
Unknown8 (4.9%)12 (3.4%)