Table 4.
Baseline characteristics of the sequence of radiation therapy with immunotherapy in PDAC patients with no surgery.
| Variable | RT and immx within 30 days | Immx >30 days before RT | RT >30 days before immx | Total | P | |
|---|---|---|---|---|---|---|
| of each other | n = 15 (6.64) | n = 34 (15.04) | n = 226 | |||
| n = 177 (78.32) | ||||||
| Age at diagnosis (mean) | 61.0 (33–85) | 70.0 (47–80) | 64.0 (80–37) | 62.0 (33–85) | ||
| Sex | Male | 99 (55.93) | 10 (66.67) | 15 (44.12) | 124 (54.87) | 0.285 |
| Female | 78 (44.07 | 5 (33.33) | 19 (55.88) | 102 (45.13) | ||
| Race | White | 154 (89.53) | 12 (80.00) | 29 (85.29) | 195 (88.24) | 0.367 |
| Black | 12 (6.98) | 2 (13.33) | 5 (14.71) | 19 (8.60) | ||
| Other | 6 (3.49) | 1 (6.67) | 0 (0.00) | 7 (3.17) | ||
| Unknown | 5 | 0 | 0 | 5 | ||
| Education | ≥13% NHD | 58 (32.95) | 7 (46.67) | 11 (32.35) | 76 (33.78) | 0.550 |
| <13% | 118 (67.05) | 8 (53.33) | 23 (67.65) | 149 (66.22) | ||
| Unknown | 1 | 0 | 0 | 1 | ||
| Income | ≥$35,000 | 123 (69.89) | 8 (53.33) | 24 (70.59) | 155 (68.89) | 0.402 |
| <35,000 | 53 (30.11) | 7 (46.67) | 10 (29.41) | 70 (31.11) | ||
| Unknown | 1 | 0 | 0 | 1 | ||
| Place of living | Urban | 168 (97.67) | 15 (100.00) | 33 (100.00) | 216 (98.18) | 0.566 |
| Rural | 4 (2.33) | 0 (0.00) | 0 (0.00) | 4 (1.82) | ||
| Unknown | 5 | 0 | 1 | 6 | ||
| Hospital type | Academic | 137 (78.29) | 5 (33.33) | 25 (75.76) | 167 (74.89) | 0.0006 |
| Community | 38 (21.71) | 10 (66.67) | 8 (24.24) | 56 (25.11) | ||
| Unknown | 2 | 0 | 1 | 3 | ||
| Insurance | Yes | 148 (98.67) | 14 (100.00) | 33 (97.06) | 195 (98.48) | 0.701 |
| No | 2 (1.33) | 0 (0.00) | 1 (2.94) | 3 (1.52) | ||
| Unknown | 27 | 1 | 0 | 28 | ||
| Charlson score | 0 | 149 (84.18) | 7 (46.67) | 25 (73.53) | 181 (80.09) | 0.001 |
| 1 | 23 (12.99) | 5 (33.33) | 8 (23.53) | 36 (15.93) | ||
| ≥2 | 5 (2.82) | 3 (20.00) | 1 (2.94) | 9 (3.98) | ||
| Year of diagnosis | 2004–2010 | 148 (83.62) | 6 (40.00) | 5 (14.71) | 159 (70.35) | 0.0001 |
| 2011–2016 | 29 (16.38) | 9 (60.00) | 29 (85.29) | 67 (29.65) |
RT, radiation therapy; Immx, immunotherapy; bf, before; NHD, no high school degree.