Increased incidence of malignant melanoma after peaks of sunspot activity.
The age-adjusted incidence-rate for malignant melanoma in the State of Connecticut has risen from 1.1 per 100 000 individuals in 1935 to 6.2 per 100 000 individuals in 1975. Superimposed on a steady rise in incidence are 3-5 year periods in which the rate of increase in incidence rises. These periods have a cycle of 8-11 years and follow times of maximum sunspot activity.
D000367:Age Factors; D002940:Circadian Rhythm; D003237:Connecticut; D005260:Female; D006801:Humans; D008297:Male; D008545:Melanoma / Q000453:epidemiology* / Q000209:etiology; D009381:Neoplasms, Radiation-Induced / Q000453:epidemiology*; D012878:Skin Neoplasms / Q000453:epidemiology* / Q000209:etiology; D013472:Sunlight; D013997:Time Factors; D014466:Ultraviolet Rays / Q000009:adverse effects*