Data from a Psoriasis study

The dataframe pasi comprises the changes in PASI-score (Psoirasis Area and Severity Index) from Baseline within two months in 72 patients treated with different doses of Etretin or Placebo in a double blind study.

data(pasi)

Format

A data frame with 72 observations and 3 variables:

treatment

a factor with levels Etretin10mg Etretin25mg Etretin50mg Placebo

pasi.ch

Changes in PASI score within two months

dose

Dose of Etretin as ordered factor with levels Placebo < ET.10mg < ET.25mg < ET.50mg