Vitiligo Statistics - Who is affected?
Vitiligo is a skin condition that occurs in all countries, the incidence of this disease is in a range of 0.1% to 4%. In some countries, they have a frequency of 8%. Higher the frequency of vitiligo in India, Mexico and Japan.
Most often vitiligo begins in childhood or adolescence. It is believed that the peak of disease onset is between 10 and 30 years of age. About 50% of people with vitiligo reported appearance around the age of 20, and a quarter of all suffering from vitiligo children. Naturally in other age groups may also begin manifestation of vitiligo. Usually in a wide range that is between the ages of 2 and 40 years.
Vitiligo prejudice equally both sexes and all races. Fails to recognize the socio-economic impact. Some sources indicate that women are more affected, but it is believed that this is due to incorrect reporting of frequency because of the cosmetic point of view women more often seek help. The same is observed in people who have a darker skin color. Due to the pronounced accent of vitiligo, they often seek help and treatment.
Between 20% and 40% of people have a positive family history of vitiligo. About 20% of people who suffer from vitiligo have at least one first-degree relatives who suffer from vitiligo. It is further considered that the first-degree relatives of people with vitiligo have from 3 to 13 times higher risk of occurrence of vitiligo. In the family of the second line is considered that the risk is two to four times higher.
In monozygotic twins vitiligo occurs in both twin only 23%, suggesting that in addition there are genetic and non-genetic factors that determine the incidence of vitiligo.
When 23% of the people suffering from generalized vitiligo is observed at a higher frequency of autoimmune diseases, both in themselves and in their first-degree relatives. The most common autoimmune diseases are autoimmune thyroiditis, pernicious anemia, Addison's disease, systemic lupus erythematosus, inflammatory bowel diseases, diabetes mellitus, and alopecia areata (circular hair loss).
In studies in patients with vitiligo is found in 39% of the epithelium has a depigmentation of the retina and choroid, without any visual disturbance.
Based on all the data on the incidence and prevalence of vitiligo is considered that the worldwide hit for a total of about 100 million people.