Table 1 Characteristics of AYA cancer survivors and matched cancer-free individuals (unexposed)
Patient characteristics at diagnosis of cancer | Exposed N = 21,666 | Unexposed N = 108,330 | Standardized difference* |
|---|---|---|---|
Age (years), mean ± SD | 32.12 ± 5.95 | 32.14 ± 5.97 | 0 |
Age categories | |||
 < 30 years | 6168 (28.5) | 30,798 (28.4) | 0 |
 ≥ 30 years | 15,498 (71.5) | 77,532 (71.6) | 0 |
Income quintile | |||
 1 | 3927 (18.1) | 21,699 (20.0) | 0.05 |
 2–4 | 13,336 (61.6) | 66,487 (61.4) | 0 |
 5 | 4403 (20.3) | 20,144 (18.6) | 0.04 |
Rurality | Â | Â | Â |
 Rural | 1927 (8.9) | 9635 (8.9) | 0 |
 Urban | 19,739 (91.1) | 98,695 (91.1) | 0 |
Immigration status | Â | Â | Â |
 Immigrant | 4399 (20.3) | 24,358 (22.5) | 0.05 |
 Non-immigrant | 17,267 (79.7) | 83,972 (77.5) | 0.05 |
Parity | Â | Â | Â |
 Nulliparous | 11,107 (51.3) | 58,455 (54.0) | 0.05 |
 Parous | 10,559 (48.7) | 49,875 (46.0) | 0.05 |
Type of cancer | Â | Â | Â |
 Breast cancer | 7064 (32.6) | 35,320 (32.6) | 0 |
 Leukemia | 586 (2.7) | 2930 (2.7) | 0 |
 Hodgkin lymphoma | 1647 (7.6) | 8235 (7.6) | 0 |
 Non-Hodgkin lymphoma | 1263 (5.8) | 6315 (5.8) | 0 |
 Thyroid cancer | 8153 (37.6) | 40,765 (37.6) | 0 |
 Melanoma | 2953 (13.6) | 14,765 (13.6) | 0 |