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Prevention of skin cancer, it is essential to understand how sunscreen behaviors are related to sunburn, said Kasey Morris head of study at the National Cancer Institute in Bethesda, Maryland [19659002] Skin cancer affects millions of Americans and would cost more than $ 8 billion a year for melanoma and skin cancer without melanoma. About 1 in 5 people are diagnosed with skin cancer in their lifetime and 201,000 Americans will be diagnosed with the most dangerous malignant melanoma in 2018.
"Most of these cases are caused by exposure excessive UV exposure Morris and his colleague Frank Perna analyzed data from more than 28,000 responses to the 2015 National Health Interview Survey. The survey asks participants what would happen to their skin if they were exposed to the sun for one hour after several months of non-exposure Those who said "have a severe burn with blisters", "have a moderate sunburn with a scrub", or "burn slightly with a little or not tans "were considered to be sensitive to the sun, and those who said" to become darker without sunburn "or" nothing would happen "were considered insensitive to the sun.
Respondents also I have been told how often they had sunburned last year and how often they used sunscreen. a hot and sunny day. The choices included sunscreen, shade, a hat or visor, a wide brimmed hat, long sleeves and long pants.
Most people – 77% – used at least one sunscreen. Shadow research was the most common, used by 40% of people. Wearing long sleeves was less common, at 16%.
Of the approximately 16,000 sun-sensitive respondents, those who used only sunscreen had the highest rate of sunburn, 62%. Sun-sensitive people with the lowest risk of sunburns did not use sunscreen but found shadows, wore a hat, and wore protective clothing.
Of the 12,000 people not sensitive to the sun, those who The most surprising and paradoxical result was that regular use of sunscreen, in the absence of other protective behaviors , was associated with the highest probability of sunburn, "said Morris
. Sunscreen blocks UV rays, she adds. However, in a real environment, people may not apply enough sunscreen or as often as needed to prevent sunburn. They can also overestimate how long they can safely stay in the sun.
"This study highlights the recommendations that the sunscreen should not be used in isolation," said Morris
. time spent in the sun, especially between 10 am and 2 pm, using broad spectrum sunscreens over SPF 15, applying sunscreen every two hours and wearing clothing to cover the skin
Americans use enough sunscreen so that all sun exposed body parts are covered and reapplied often enough, "said Alan Geller of Harvard TH. Chan School of Public Health in Boston. Geller, who did not participate in this study, is studying melanoma mortality among seniors and people of lower socioeconomic status.
"It is good to see that shading has become the main form of sunscreen, free and inexpensive. than to be out in the hot sun, "he told Reuters Health by email. "We need to create more shadow structures in schools and parks, where we can have more control over the physical environment than on beaches and lakes."
"We can not changing skin type we can work vigilantly for ourselves and our children to avoid sunburn, which have a negative effect on our DNA, "said Geller.
SOURCE: http: / /bit.ly/2JbBy9x JAMA Dermatology, online June 27, 2018. [19659021] (function (d, s, id) {
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