Table 1.
Demographics of the cancer and comparison groups.
| Demographics | Childhood cancer survivors (n=33,105) | Cancer groups (ICD-9-CMa) | Comparison group | |||||||
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Hematologic cancer (200-208) (n=3934) | Brain cancer (191-192) (n=2241) | Benign brain tumor (225) (n=7825) | Non-CNSb solid tumor (140-190; 193-199) (n=19,105) | P valuec | No cancer individuals (n=64,754) | P valued | ||
| Gender, n (%) |
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Male | 18,377 (55.51) | 2211 (56.20) | 1209 (53.95) | 4091 (52.28) | 10,866 (56.88) | <.001 | 35,803 (55.29) | .52 | |
|
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Female | 14,728 (44.49) | 1723 (43.80) | 1032 (46.05) | 3734 (47.72) | 8239 (43.12) | N/Ae | 28,951 (44.71) | N/A | |
| Age at entry, median (IQR) | 12.00 (7.00-16.00) | 11.00 (5.00-15.00) | 12.00 (8.00-16.00) | 14.00 (8.00-17.00) | 12.00 (6.00-16.00) | <.001 | 12.00 (6.00-16.00) | .002 | ||
| Years of follow-up, median (IQR) | 7.23 (3.58-10.01) | 7.73 (4.73-10.53) | 8.59 (5.25-10.90) | 7.60 (4.73-10.00) | 6.54 (3.07-9.76) | <.001 | 7.16 (3.53-9.98) | .04 | ||
aICD-9-CM: International Classification of Diseases, Ninth Revision, Clinical Modification.
bCNS: central nervous system.
cCompared among the cancer groups and the no cancer group.
dCompared between all cancer survivors versus no cancer individuals.
eN/A: not applicable.