How is psoriasis distributed worldwide?

Eighty one per cent of the countries of the world lack information on the epidemiology of psoriasis. The disease occurs more frequently in adults than in children. Psoriasis is unequally distributed across geographical regions; it is more frequent in high income countries and in regions with older populations.

What is the epidemiology of psoriasis?

Psoriasis affects approximately 125 million people globally, which is about 2.2% of the worldwide population. The prevalence varies in different areas of the world; however, higher rates are reported in developed countries accounting for 4.6% of the population.

What areas are affected by psoriasis?

The most commonly affected areas are the lower back, elbows, knees, legs, soles of the feet, scalp, face and palms. Most types of psoriasis go through cycles, flaring for a few weeks or months, then subsiding for a time or even going into remission.

What country has the highest rate of psoriasis?

Also according to the Atlas, the country most affected by psoriasis is Norway with a prevalence of 1.98% of the overall population.

Which type of psoriasis has geographical plaques skin lesions that resemble maps?

In some cases, the patches can become very large and cover wide areas of the back or chest. These are known as geographic plaques because the skin lesions resemble maps. Plaque psoriasis may persist for long periods of time.

What are the factors for the pathogenesis of psoriasis?

Various factors which have been suggested to play a key role in the pathogenesis are T cells, antigen presenting cells (APC’s), keratinocytes, Langerhans’ cells, macrophages, natural killer cells, an array of Th1 type cytokines, certain growth factors like vascular endothelial growth factor (VEGF), keratinocyte growth …

What are the two types of psoriasis?

Types of Psoriasis

  • Guttate Psoriasis. Guttate psoriasis affects roughly 8 percent of people living with psoriasis.
  • Pustular Psoriasis. Pustular psoriasis affects about 3 percent of people living with psoriasis.
  • Plaque Psoriasis.
  • Inverse Psoriasis.
  • Erythrodermic Psoriasis.

Is psoriasis common in India?

With a prevalence of 0.44-2.8 per cent in India, it commonly affects individuals in their third or fourth decade with males being affected two times more common than females1. Psoriasis significantly impairs the quality of life of patients and their families resulting in great physical, emotional and social burden.

What’s the difference between plaque psoriasis and psoriasis?

Psoriasis can appear anywhere on the body, even on the eyelids, ears, lips, skin folds, hands, feet, and nails. Plaques can be a few small patches or can affect large areas. It’s possible to have psoriasis plaques and scales in more than one location on the body at a time.