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aMultivariable analyses adjusted for age, susceptibility to burn, ability to tan, natural hair colour at age 20, number of moles on left arm, family history of melanoma, severe sunburn counts, UV indices at state of residence at birth, 15 and 30 years of age, physical activity level, and rotating night shift.
bUV flux quintiles for 2-year lag analysis: Q1=200–654, Q2=656–1130, Q3=1132–1800, Q4=1802–2484 and Q5=2486–5000 × 10−4 RB units, respectively.
cUV flux quintiles for 4-year lag analysis: Q1=200–624, Q2=648–1128, Q3=1130–1638, Q4=1640–2260 and Q5=2262–4608 × 10−4 RB units, respectively.
dUV flux quintiles for 6-year lag analysis: Q1=200–580, Q2=600–1038, Q3=1040–1526, Q4=1528–2072 and Q5=2074–4216 × 10−4 RB units, respectively.
eUV flux quintiles for 8-year lag analysis: Q1=200–452, Q2=468–904, Q3=906–1384, Q4=1386–1872 and Q5=1874–3824 × 10−4 RB units, respectively.
fUV flux quintiles for 10-year lag analysis: Q1=200–436, Q2=452–872, Q3=874–1306, Q4=1308–1742 and Q5=1744–3432 × 10−4 RB units, respectively.