Table 2.
OGD1 endoscopic outcomes
| Variable | Total (n=964) | Grade C (n=595) | Grade D (n=369) | P value |
| Stricture present at OGD, % (N) | 8.3 (80) | 6.7 (40) | 10.8 (40) | 0.024* |
| Barrett’s appearances OGD1, % (N) | 9.1 (88) | 9.1 (54) | 9.2 (34) | 0.942 |
| Barrett’s appearances OGD1 with IM on biopsies, % (N) | 60.3 (35/58) | 60.0 (21/35) | 60.9 (14/23) | 0.947 |
| IM on biopsies with Barrett’s appearances not noted OGD1, % (N) | 8.1 (25/310) | 8.7 (16/184) | 7.1 (9/126) | 0.622 |
| Combined Barrett’s appearances and IM on biopsies OGD1, % (N) | 11.6 (112) | 11.8 (70) | 11.4 (42) | 0.857 |
| Prague Classification C OGD1 (cm), median (IQR) | 3.5 (1.3–5.8) (n=28) | 2.0 (0.5–4.5) (n=17) | 6.0 (2.0–10.0) (n=11) | 0.006* |
| Prague Classification M OGD1 (cm), median (IQR) | 5.0 (3.0–7.8) (n=28) | 4.0 (3.0–5.0) (n=17) | 8.0 (5.0–11.0) (n=11) | 0.001* |
| Biopsies taken at OGD1, % (N) | 32.4 (312) | 31.1 (185) | 34.4 (127) | 0.284 |
| Cancer OGD1, % (N) | 0.6 (6) | 0.8 (5) | 0.3 (1) | 0.275 |
| Atypia OGD1, % (N) | 2.0 (19) | 1.8 (11) | 2.2 (8) | 0.729 |
| Dysplasia OGD1, % (N) | 0.5 (5) | 0.3 (2) | 0.8 (3) | 0.316 |
| IM OGD1, % (N) | 6.2 (60) | 6.4 (38) | 6.0 (22) | 0.791 |
| OGD2, % (N) | 39.9 (385) | 39.7 (236) | 40.4 (149) | 0.825 |
*Statistically significant result (p<0.05). The Mann-Whitney U test compared continuous variables; the χ2 test compared categorical variables.
IM, intestinal metaplasia; OGD1, index endoscopic procedure; OGD2, repeat endoscopic procedure.