When available, we show information about how well a treatment works with 100 faces. If 100 people take a treatment, the number of green smiley faces shows how many had excellent improvement of their psoriasis. Excellent improvement means the severity of their psoriasis got better by 75% or more. With each group of faces you’ll see a statement of how many people saw improvement and how many weeks of treatment it took. In the example here, 73 of the 100 faces are green and 27 are black. 73 out of 100 people experienced excellent improvement.

We show the same for possible serious side effects, when this information is available. If 100 people take a treatment, the number of red frowning faces shows how many might experience a serious side effect.

In the example here, 3 of the 100 faces are red and 97 are black. If 100 people take this treatment, 3 might experience a serious side effect.

1 out of 3 stars means low quality evidence. This evidence is indirect or doesn't meet certain scientific standards.

2 out of 3 stars means medium quality evidence. This evidence meets higher scientific standards but is not as reliable as 3/3 stars.

3 out of 3 stars means high-quality evidence. This evidence is likely reliable.