Table 1.
Differences between study responders and nonresponders on cancer registry variables (n = 2592 diagnosed in 1996-2010; Los Angeles County)
| Characteristic | Nonresponder (n = 1426)a | Responder (n = 1166)b | Test statistic |
|
|---|---|---|---|---|
| χ2 | P c | |||
| Age at diagnosis, y | 4.64 | .20 | ||
| 0-4 | 187 (56.8) | 142 (43.2) | ||
| 5-9 | 281 (56.4) | 217 (43.6) | ||
| 10-14 | 361 (51.4) | 342 (48.7) | ||
| 15-19 | 551 (55.5) | 442 (44.5) | ||
| Years since diagnosis (2015) | .0268 | .99 | ||
| 5-9 | 358 (54.7) | 296 (45.3) | ||
| 10-14 | 480 (55.1) | 391 (44.9) | ||
| 15-22 | 588 (55.1) | 479 (44.9) | ||
| Sex | 23.39 | <.001 | ||
| Male | 834 (59.4) | 571 (40.6) | ||
| Female | 592 (49.9) | 595 (50.1) | ||
| Age in 2015, y | 3.32 | .34 | ||
| 18-20 | 314 (56.7) | 240 (43.3) | ||
| 21-25 | 538 (55.8) | 427 (44.3) | ||
| 26-30 | 345 (52.0) | 318 (48.0) | ||
| 31-39 | 229 (55.9) | 181 (44.2) | ||
| Race and ethnicity | 29.68 | <.001 | ||
| Non-Hispanic White | 309 (47.6) | 340 (52.4) | ||
| Hispanic | 815 (57.3) | 607 (42.7) | ||
| Asian | 106 (49.5) | 108 (50.5) | ||
| Other | 196 (63.8) | 111 (36.7) | ||
| Cancer diagnosis | 6.69 | .24 | ||
| Lymphoma | 257 (51.3) | 244 (48.7) | ||
| Leukemia | 479 (54.1) | 407 (45.9) | ||
| Brain and other nervous system | 260 (58.7) | 183 (41.3) | ||
| Endocrine system | 79 (53.74) | 68 (46.26) | ||
| Skin | 60 (57.14) | 45 (42.86) | ||
| Otherd | 291 (57.1) | 219 (42.9) | ||
| Stage of disease (missing n = 2) | 5.12 | .16 | ||
| Local | 271 (57.7) | 199 (42.3) | ||
| Regional | 398 (52.4) | 361 (47.6) | ||
| Distant | 755 (55.5) | 606 (44.5) | ||
| Socioeconomic status | 15.67 | .004 | ||
| Lowest | 521 (59.1) | 361 (40.9) | ||
| Low | 314 (55.1) | 256 (44.9) | ||
| Medium | 225 (55.7) | 179 (44.3) | ||
| High | 169 (47.5) | 187 (52.5) | ||
| Highest | 197 (51.8) | 183 (48.2) | ||
a
Among those eligible and approached.
b
Among those initially enrolled.
c
Two-sided, χ2 tests.
d
Oral cavity and pharynx, digestive system, respiratory system, soft tissue including heart, urinary system, eye and orbit, and miscellaneous.