TABLE 3.
Associations between demographic characteristics and malignant melanoma incidence rates among children and adolescents, 1995-2013: stratified by race/ethnicity
| Texas |
SEER 13 |
|||||||
|---|---|---|---|---|---|---|---|---|
| Non-Hispanic Whites
(n=526) |
Hispanics (n=68) |
Non-Hispanic Whites
(n=1,079) |
Hispanics (n=79) |
|||||
| Characteristic | Adjusted IRRa (95% CI) | p-value | Adjusted IRRa (95% CI) | p-value | Adjusted IRRa (95% CI) | p-value | Adjusted IRRa (95% CI) | p-value |
| Sex | ||||||||
| Male | Reference | -- | Reference | -- | Reference | -- | Reference | -- |
| Female | 1.37 (1.14, 1.63) | 0.001 | 1.19 (0.75, 1.90) | 0.464 | 1.57 (1.39, 1.78) | <0.001 | 2.04 (1.20, 3.47) | 0.009 |
| Age at diagnosis, years | ||||||||
| 0-4 | Reference | -- | Reference | -- | Reference | -- | Reference | -- |
| 5-9 | 0.99 (0.55, 1.76) | 0.966 | 1.22 (0.54, 2.79) | 0.631 | 1.83 (1.09, 3.07) | 0.022 | 1.99 (0.78, 5.10) | 0.151 |
| 10-14 | 3.20 (1.99, 5.14) | <0.001 | 1.10 (0.46, 2.62) | 0.833 | 4.78 (2.99,7.64) | <0.001 | 3.71 (1.54, 8.90) | 0.003 |
| 15-20 | 13.59 (8.85, 20.87) | <0.001 | 3.41 (1.71, 6.80) | <0.001 | 31.36 (20.29, 48.46) | <0.001 | 7.15 (3.00, 17.01) | <0.001 |
| County-level povertyb | ||||||||
| High | Reference | -- | Reference | -- | Reference | -- | Reference | -- |
| Low | 1.41 (1.14, 1.73) | <0.001 | 0.64 (0.40, 1.02) | 0.063 | 1.03 (0.88, 1.20) | 0.728 | 1.85 (1.22, 2.79) | 0.004 |
| Year of diagnosisc | ||||||||
| 1995-1998 | Reference | -- | Reference | -- | Reference | -- | Reference | -- |
| 1999-2002 | 1.47 (1.09, 1.97) | 0.011 | 1.00 (0.42, 2.38) | 1.00 | 1.35 (1.12, 1.65) | 0.002 | 1.20 (0.51, 2.80) | 0.677 |
| 2003-2006 | 2.03 (1.54, 2.68) | <0.001 | 1.28 (0.59, 2.80) | 0.532 | 1.53 (1.28, 1.84) | <0.001 | 1.56 (0.74, 3.28) | 0.245 |
| 2007-2010 | 1.51 (1.11, 2.06) | 0.008 | 1.42 (0.67, 3.02) | 0.363 | 1.10 (0.90, 1.34) | 0.370 | 1.96 (0.88, 4.38) | 0.100 |
| 2011-2013 | 1.03 (0.73, 1.47) | 0.852 | 1.39 (0.63, 3.10) | 0.414 | 1.00 (0.81, 1.25) | 0.974 | 2.11 (0.98, 4.53) | 0.057 |
Abbreviations: CI, confidence interval; IRR, incidence rate ratio
a
Adjusted IRRs are mutually adjusted for all variables listed in the table.
b
Four-year increments, except for 2011-2013 which is a three-year increment.
c
Low county-level poverty category includes those living in a county with ≤15% of households below the poverty level; High county-level poverty category includes those living in a county with >15% of households below the poverty level.