I am sure they were there but I can't seem to remember a case of sun cancer growing up in PA. People (including some very old people) worked in the sun all day. We helped the farmers put hay away from early morning through out the day and never gave sun cancer a second thought. I don't remember wearing a cap of any kind and neither did any of my friends. My brother, father, other relatives, and many friends followed similar routines. All this and no skin cancer to speak of.
So, I tried to dig up some research and was blasted by Blackle with countless reports and tables. I settled on a summarized version below but am left with two thoughts: (1) human kind has no doubt screwed up their immune systems from both consumption and exposure to hell knows what (2) our atmosphere has lost some of its ability to shield out harmful cancer driven rays.
Skin cancer rates have significantly increased from the 1950s to today. Below is a comparison of the estimated incidence rates.
Estimated Incidence Rates
- 1950s:
- Melanoma: Approximately 1.5 cases per 100,000 people.
- Non-melanoma skin cancers (e.g., basal cell carcinoma, squamous cell carcinoma): Estimated around 100,000 cases annually in the U.S.
- Today (2020s):
- Melanoma: Approximately 22 cases per 100,000 people.
- Non-melanoma skin cancers: Over 5 million cases annually in the U.S.
Factors Contributing to Changes
- Increased UV Exposure: Higher rates of sun exposure and tanning bed use.
- Awareness and Screening: Improved awareness and early detection have led to higher reported rates.
- Aging Population: An older population is more susceptible to skin cancer.
Sources of Data
- American Cancer Society
- National Cancer Institute
- Centers for Disease Control and Prevention (CDC)