Fig. 1

Empirical odds ratios. Dose-response curves with 95%-confidence band: dose-response relationship for total UV exposure. Odds ratios adjusted for sex, age, age2 and Fitzpatrick phototype using conditional logistic regression model (best fit): OR = 8.47E-9 * dose2–125,261,133 * 1/dose2–4.93 * LOG (dose) + 1.25E-9 * EXP (dose) + 47.13 (corrected R2 = 0.481). NA = not applicable