Table 1 Demographic and clinical characteristics.
Experimental group (n = 313) | Control group (n = 313) | P value | |
|---|---|---|---|
Age, years | 21–56 | 20–60 | 0.122 |
Gender, n (%) | 0.143 | ||
Female | 119 (38.0) | 138 (44.1) | |
Male | 194 (62.0) | 175 (55.9) | |
Previous esophagogastroduodenoscopy, n (%) | 105 (33.5) | 99 (31.6) | 0.501 |
History of pharyngeal diseases, n (%) | 201 (64.2) | 203 (64.8) | 0.554 |
Smoking >5 years, n (%) | 173 (55.3) | 169 (54.0) | 0.290 |
Main indications, n (%) | 0.718 | ||
Heartburn | 118 (37.7) | 96 (30.7) | |
Abdominal distension | 57 (18.2) | 66 (21.1) | |
Dyspepsia | 92 (29.4) | 93 (29.7) | |
Epigastric pain | 46 (14.7) | 58 (18.5) | |
Endoscopic diagnosis, n (%) | 0.249 | ||
Esophagitis | 47 (15.0) | 42 (13.4) | |
Chronic gastritis | 221 (70.6) | 231 (73.8) | |
Peptic ulcer | 33 (10.5) | 27 (8.6) | |
Esophageal cancer | 4 (1.3) | 3 (1.0) | |
Gastric cancer | 8 (2.6) | 10 (3.2) |
