Hyperhidrosis affects people of all age, genre and nationality but not in the same proportions. Genetical and climate difference amongst populations put some more at risk of suffering from hyperhidrosis.
Prevalence of hyperhidrosis has been studied many times on different populations under different angles in studies from Canada, United States, France, Brazil and Korea. Here is a summary of our findings.
In the United States
The largest study was done in the United States on 7,772,850 participants
Strutton et al. (2004) found a hyperhidrosis prevalence of 2.8% in their survey population. Most of them, 54%, suffer from palmar and/or plantar hyperhidrosis. That's almost 5 million people just in the US.
The highest prevalence rates were seen between 25 and 65 years of age (3.5% to 4.5%), and the lowest under 12 years of age (0.5% to 0.7%) prevalence. In this survey, there were no gender differences in prevalence.
Only 38% of those studied had consulted their physician about excessive sweating.
Elsewhere in the world.
In the Asian population there is a disproportionately high incidence of the palmar variety, with up to a 5% prevalence in certain areas of China.
In Brazil, a hot and humid environment, a research has seen a very high 9% incidence rate.
Lee et al. Describe palmar hyperhidrosis as a functional disorder, common in subtropical areas, with an incidence estimated between 0.6-1% in Israel and 1.6 to 3% in Taiwan.
Still want to learn more? Read the Epidemiology of Primary Hyperhidrosis
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