“…11 Based on location, most of the studies were conducted in the United States (n = 14), [3][4][5][6]22,24,25,33,35,37,[41][42][43]45 followed by the United Kingdom (n = 9), 11,12,15,18,29,30,32,38,44 Italy (n = 6), 7,8,20,21,36,39 Spain (n = 4), 9,10,13,17 Australia/New Zealand (n = 3), 14,31,40 Turkey (n = 2), 16,19 and one study each from Germany, 23 Netherlands, 24 Pakistan, 27 Brazil, 28 and Switzerland. 34 Patient and skin condition characteristics. Slightly less than half (20/42, 47.6%) of the studies reported mean age; of those reporting, mean age was 51 years (range of means 6-71 years).…”