Kev's comments - these values are similar to the percentages of the general population with different hair colors in Northern Europe and North America. 275 of 307 respondents reported themselves as located in Europe or the USA and Canada.
Brown hair predominates on both continents.
Only perhaps blonde haired individuals are under represented in these figures. It has been suggested previously that melanocytes and their products may be the target antigens for attack in alopecia areata. Some people have several episodes of alopecia areata with complete hair regrowth in between the episodes. Please answer the following question by clicking one of the options below. One group, the majority, have experienced just on or two episodes of hair loss.