Table 1. Demographic characteristics according to endoscopic BE and pathological BE in the training cohort*.
| CLE | IM≥2 cm | |||||
| BE | Normal | P | BE | Normal | P | |
| N | 182 | 1421 | 69 | 1534 | ||
| Age (yrs) | 58.1 (12.7) | 51.7 (14.2) | <0.001 | 60.9 (11.9) | 52.0 (14.1) | <0.001 |
| BMI (kg/m2) | 27.1 (4.2) | 26.6 (5.1) | 0.21 | 27.5 (4.5) | 26.6 (5.1) | 0.16 |
| Ethnic | ||||||
| Caucasian | 128 (11.4%) | 996 (88.6%) | 0.19 | 51 (4.5%) | 1,073 (95.5%) | 0.30 |
| Bangladeshi | 32 (13.9%) | 198 (86.1%) | 11 (4.8%) | 219 (95.2%) | ||
| Other | 6 (6.7%) | 83 (93.3%) | 1 (1.1%) | 88 (98.9%) | ||
| Sex | ||||||
| Male | 118 (15.1%) | 665 (84.9%) | <0.001 | 46 (5.9%) | 737 (94.1%) | 0.003 |
| Female | 62 (7.6%) | 756 (92.4%) | 23 (2.8%) | 795 (97.2%) | ||
| Education | ||||||
| High school or less | 128 (12.2%) | 917 (87.8%) | 0.21 | 50 (4.8%) | 995 (95.2%) | 0.51 |
| College | 29 (11.4%) | 225 (88.6%) | 10 (3.9%) | 244 (96.1%) | ||
| University or higher | 16 (7.3%) | 203 (92.7%) | 8 (3.7%) | 211 (96.3%) | ||
| Other | 3 (9.4%) | 30 (90.6%) | 0 (0%) | 33 (100.0%) | ||
| Smoking | ||||||
| Never | 59 (10.6%) | 500 (89.4%) | 0.05 | 18 (3.2%) | 541 (96.8%) | 0.05 |
| Former | 57 (12.9%) | 385 (87.1%) | 25 (5.7%) | 417 (94.3%) | ||
| Current | 26 (7.5%) | 322 (92.5%) | 9 (2.6%) | 339 (97.4%) | ||
| Alcohol drinking | ||||||
| Non-drinker | 18 (8.8%) | 186 (91.2%) | 0.35 | 9 (4.4%) | 195 (95.6%) | 0.74 |
| Drinker | 127 (11.0%) | 1,024 (89.0%) | 45 (3.9%) | 1,106 (96.1%) | ||
| Family history of BE | ||||||
| Yes | 3 (16.7%) | 15 (83.3%) | 0.45 | 2 (11.1%) | 16 (88.9%) | 0.18 |
| No | 179 (11.3%) | 1,406 (88.7%) | 67 (4.2%) | 1,518 (95.8%) | ||
| Family history of EAC | ||||||
| Yes | 8 (12.7%) | 55 (87.3%) | 0.73 | 2 (3.2%) | 61 (96.8%) | 1.0 |
| No | 174 (11.3%) | 1366 (88.7%) | 67 (4.4%) | 1,473 (95.6%) | ||
| Heartburn | ||||||
| Never | 25 (8.4%) | 271 (91.6%) | 0.007† | 9 (3.0%) | 287 (97.0%) | 0.04† |
| Sometimes | 14 (8.1%) | 159 (91.9%) | 3 (1.7%) | 170 (98.3%) | ||
| Often | 46 (10.1%) | 410 (89.9%) | 18 (3.9%) | 438 (96.1%) | ||
| Daily | 60 (14.6%) | 351 (85.4%) | 23 (5.6%) | 388 (94.4%) | ||
| Acid flux | ||||||
| Never | 37 (9.1%) | 371(90.9%) | 0.009† | 12 (2.9%) | 396 (97.1%) | 0.07† |
| Sometimes | 17 (6.3%) | 253 (93.7%) | 8 (3.0%) | 262 (97.0%) | ||
| Often | 57 (13.1%) | 378 (86.9%) | 20 (4.6%) | 415 (95.4%) | ||
| Daily | 31 (14.0%) | 190 (86.0%) | 12 (5.4%) | 209 (94.6%) | ||
| Chest Pain | ||||||
| Never | 70 (13.0%) | 467 (87.0%) | 0.03† | 29 (5.4%) | 508 (94.6%) | 0.07† |
| Mild | 31 (9.4%) | 299 (90.6%) | 10 (3.0%) | 320 (97.0%) | ||
| Moderate | 35 (10.3%) | 305 (89.7%) | 10 (2.9%) | 330 (97.1%) | ||
| Severe | 8 (6.3%) | 120 (93.8%) | 4 (3.1%) | 124 (96.9%) | ||
| Being woken at night by symptoms | ||||||
| No | 86 (11.6%) | 654 (88.4%) | 0.75 | 32 (4.3%) | 708 (95.7%) | 0.97 |
| Yes | 96 (11.1%) | 767 (88.9%) | 37 (4.3%) | 826 (95.7%) | ||
| Abdominal pain | ||||||
| No | 59 (16.4%) | 301 (83.6%) | <0.001 | 28 (7.8%) | 332 (92.2%) | <0.001 |
| Yes | 85 (8.7%) | 895 (91.3%) | 25 (2.6%) | 955 (97.4%) | ||
| Anti-reflux medication | ||||||
| No | 47 (7.3%) | 597 (92.7%) | <0.001 | 14 (2.2%) | 630 (97.8%) | <0.001 |
| Yes | 88 (14.3%) | 528 (85.7%) | 38 (6.2%) | 578 (93.8%) | ||
*Data shown are mean (SD) for continuous variables and number (percentage) for categorical variables
†
P for trend test.