Fig. 1 | British Journal of Cancer

Fig. 1

From: Reproductive factors, exogenous hormone use and incidence of melanoma among women in the United States

Fig. 1

Risk of melanoma among non-Hispanic white, postmenopausal women according to ultraviolet radiation (UVR) exposure and a age at menarche and b oral contraceptive (OC) use. Solar ambient UVR points represent quartiles of exposure (J/m2). Trend and interaction P values are based on UVR quartile (coded continuously 1–4). P for interactions are 0.02 for age at menarche and 0.09 for OC use. Lines plotted using continuous UVR

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