Table 1.
Patient characteristics of both cohorts, and of EBUS and Non-EBUS patients within the Post-EBUS cohort
| Patient characteristics | Both cohorts | Post-EBUS cohort (n = 326) | ||
|---|---|---|---|---|
| Pre-EBUS cohort (n = 234) | Post-EBUS cohort (n = 326) | EBUS group (n = 90) | Non-EBUS group (n = 236) | |
| Median (IQR) | Median (IQR) | Median (IQR) | Median (IQR) | |
| Age at diagnosis (years)a | 69 (15) | 69 (17) | 67 (15) | 70 (18) |
| n (%) | n (%) | n (%) | n (%) | |
| Male | 139 (59.4) | 200 (61.3) | 58 (64.4) | 142 (60.2) |
| Smoker | ||||
| Unknown | 18 (7.7) | 32 (9.8) | 8 (8.9) | 24 (10.2) |
| Current | 77 (32.9) | 92 (28.2) | 29 (32.2) | 63 (26.7) |
| Ceased | 124 (53.0) | 180 (55.2) | 49 (54.4) | 131 (55.5) |
| Never | 15 (6.4) | 22 (6.7) | 4 (4.4) | 18 (7.6) |
| Remoteness | ||||
| Major city | 184 (79.3) | 244 (74.8) | 65 (72.2) | 179 (75.8) |
| Inner regional | 17 (7.3) | 29 (8.9) | 10 (11.1) | 19 (8.1) |
| Outer regional | 22 (9.5) | 34 (10.4) | 11 (12.2) | 23 (9.7) |
| Remote | 9 (3.9) | 19 (5.8) | 4 (4.4) | 15 (6.4) |
| ECOG-PSb | ||||
| 0 | 87 (37.2) | 91 (27.9) | 25 (28.0) | 66 (27.8) |
| 1 | 78 (33.3) | 143 (43.9) | 50 (55.6) | 93 (39.5) |
| 2 | 43 (18.4) | 58 (17.8) | 13 (14.4) | 45 (19.1) |
| 3 | 20 (8.5) | 28 (8.6) | 2 (2.2) | 26 (11.0) |
| 4 | 6 (2.6) | 6 (1.8) | 0 (0.0) | 6 (2.0) |
| Tumour type | ||||
| NSCLC | 204 (87.2) | 288 (88.3) | 80 (88.9) | 208 (88.1) |
| SCLC | 30 (12.8) | 38 (11.7) | 10 (11.0) | 28 (11.9) |
aMann–Whitney U test; all others except bare Pearson’s chi squared
bNo significant differences between groups except for ECOG-PS (EBUS group compared with Non-EBUS group, Fisher’s exact test, p = 0.009)