TABLE I.
Demographic details of patients with pancreatic cancer in Ontario, 2004–2011
| Variable | Patient group | p Valuea | ||||
|---|---|---|---|---|---|---|
|
| ||||||
| ≤60 Years | 61–70 Years | 71–80 Years | ≥81 Years | Overall | ||
| Patients (n) | 2096 | 2264 | 2750 | 2111 | 9221 | |
| Year of diagnosis [n (%)] | ||||||
| 2004 | 226 (10.8) | 273 (12.1) | 327 (11.9) | 233 (11.0) | 1059 (11.5) | 0.075 |
| 2005 | 235 (11.2) | 281 (12.4) | 344 (12.5) | 249 (11.8) | 1109 (12.0) | |
| 2006 | 243 (11.6) | 270 (11.9) | 315 (11.5) | 236 (11.2) | 1064 (11.5) | |
| 2007 | 297 (14.2) | 255 (11.3) | 377 (13.7) | 275 (13.0) | 1204 (13.1) | |
| 2008 | 295 (14.1) | 268 (11.8) | 356 (12.9) | 261 (12.4) | 1180 (12.8) | |
| 2009 | 261 (12.5) | 293 (12.9) | 354 (12.9) | 295 (14.0) | 1203 (13.0) | |
| 2010 | 273 (13.0) | 279 (12.3) | 332 (12.1) | 287 (13.6) | 1171 (12.7) | |
| 2011 | 266 (12.7) | 345 (15.2) | 345 (12.5) | 275 (13.0) | 1231 (13.3) | |
| Sex [n (%)] | ||||||
| Women | 857 (40.9) | 987 (43.6) | 1436 (52.2) | 1393 (66.0) | 4673 (50.7) | <0.001 |
| Men | 1239 (59.1) | 1277 (56.4) | 1314 (47.8) | 718 (34.0) | 4548 (49.3) | |
| Rural [n (%)] | ||||||
| Missing | <6 | <6 | <6 | <6 | 12 (0.1) | 0.002 |
| No | 1781 (85.0) | 1904 (84.1) | 2295 (83.5) | 1850 (87.6) | 7830 (84.9) | |
| Yes | 310 (14.8) | 357 (15.8) | 453 (16.5) | 259 (12.3) | 1379 (15.0) | |
| Income quintile [n (%)] | ||||||
| Missing | 13 (0.6) | 16 (0.7) | 8 (0.3) | 15 (0.7) | 52 (0.6) | 0.466 |
| 1 (lowest) | 437 (20.8) | 460 (20.3) | 585 (21.3) | 451 (21.4) | 1933 (21.0) | |
| 2 | 426 (20.3) | 478 (21.1) | 586 (21.3) | 426 (20.2) | 1916 (20.8) | |
| 3 | 401 (19.1) | 422 (18.6) | 537 (19.5) | 447 (21.2) | 1807 (19.6) | |
| 4 | 435 (20.8) | 454 (20.1) | 538 (19.6) | 395 (18.7) | 1822 (19.8) | |
| 5 (highest) | 384 (18.3) | 434 (19.2) | 496 (18.0) | 377 (17.9) | 1691 (18.3) | |
| Site [n (%)] | ||||||
| Head of pancreas | 974 (46.5) | 1013 (44.7) | 1144 (41.6) | 744 (35.2) | 3875 (42.0) | <0.001 |
| Tail of pancreas | 255 (12.2) | 236 (10.4) | 239 (8.7) | 110 (5.2) | 840 (9.1) | |
| Others | 867 (41.4) | 1015 (44.8) | 1367 (49.7) | 1257 (59.5) | 4506 (48.9) | |
| Comorbidityb [n (%)] | ||||||
| No | 1879 (89.6) | 1869 (82.6) | 2151 (78.2) | 1568 (74.3) | 7467 (81.0) | <0.001 |
| Yes | 217 (10.4) | 395 (17.4) | 599 (21.8) | 543 (25.7) | 1754 (19.0) | |
| Died within 5 years’ follow-up [n (%)] | ||||||
| No | 286 (13.6) | 219 (9.7) | 159 (5.8) | 82 (3.9) | 746 (8.1) | <0.001 |
| Yes | 1810 (86.4) | 2045 (90.3) | 2591 (94.2) | 2029 (96.1) | 8475 (91.9) | |
| Follow-up days (n) | ||||||
| Mean | 431.72±529.65 | 351.76±467.22 | 259.35±405.20 | 180.21±351.75 | 303.10±450.51 | <0.001 |
| Median | 207 | 159 | 97 | 49 | 113 | <0.001 |
| Interquartile range | 74–525 | 51–429 | 33–279 | 17–158 | 35–340 | |
a
Reflects significance of variation between age groups.
b
Based on score on the Charlson comorbidity index (0=no, ≥1=yes) up to 2 years before the diagnosis with pancreatic cancer.