Research Article
Relationship between Latitude and Melanoma in Italy
Table 1
Crude and adjusted Incidence Rate Ratio (IRR) and 95% confidence intervals for malignant melanoma for selected variables.
| Variable | Crude IRR, 95% CI | Adjusted⋀ IRR, 95% CI |
| Sex | | | | | Female | 1.000 | | | | Male | 0.956 | 0.912–1.001 | | | Age (years) | | | | | 0–44 | 1.000 | | 1.000 | | 45–59 | 2.883 | 2.703–3.076 | 2.832 | 2.655–3.021 | 60–74 | 3.743 | 3.515–3.985 | 3.673 | 3.449–3.911 | 75+ | 4.339 | 4.041–4.658 | 4.218 | 3.929–4.529 | Mean provincial Income 2002 | 1.011 | 1.010–1.013 | 1.004 | 1.003–1.006 | Mammography 2000 (%) | 1.026 | 1.023–1.029 | | | Blond hair 1859–63 (%) | 1.040 | 1.036–1.045 | 1.014 | 1.007–1.020 | Latitude (increasing degrees) | 1.170 | 1.153–1.186 | 1.082 | 1.054–1.111 |
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⋀Multivariate Poisson model including age, mean provincial 2002 income, % blond hair, and latitude. LR chi2(6) = 3074.41. Pseudo = 0.6942.
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