All earrings purchased were examined with the dimethylglyoxime (DMG) test -- a routine spot test using solutions to detect the presence of nickel and other alloys. Of the 277 earrings that were tested, 85 (or 30.7 percent) demonstrated at least one spot that tested DMG-positive for nickel. Dr. Maibach noted that the highest proportion of DMG-positive earrings was purchased from local artists, with 69 percent of these earrings testing positive for nickel. A large portion (42.9 percent) of earrings purchased from stores in China Town also tested positive for nickel.
When the number of DMG-positive earrings was examined from accessory and clothing stores targeting younger women under age 40 and those stores targeting women over age 40, Dr. Maibach found a large discrepancy. Specifically, 24.1 percent of the earrings purchased at the stores targeting younger women tested positive for nickel; whereas only 1.7 percent of earrings from stores targeting women over 40 tested DMG positive.
"Except for one store targeting girls and young women where a
significant number of DMG-positive earrings were found, the proportion of
earrings that tested positive for nickel was generally higher among
individual China Town stores and local artists than in individual national
and international chain stores," said Dr. Maibach. "We also found no
correlation between the country where the earrings were manufactured and
the frequency of DMG-positive reactions or whether the price of the
inexpensive earrings correlated with testing positive for nickel
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| SOURCE American Academy of Dermatology Copyright©2008 PR Newswire. All rights reserved |