---
data_dictionary: glycyrrhizin.csv

description: >
  This data is from a meta-analysis of the 
  effectiveness of glycyrrhizin, an herbal
  medicine that is thought to have some
  anti-allergenic and immune boosting effects.
  This study examined its use in treating
  chronic urticaria, a condition characterized
  by rashes and/or angiodema. The researchers
  found 24 randomized trials addressing this
  topic. The outcome was the total efficiency
  rate, defined as a binary outcome based on
  the Urticaria Symptom Score Reduction Index.

source: >
  Sijue Chen, Wei Cao, Xianjun Xiao, Lu Wang,
  Renhong Wan, Zihao Zou, Qian Yang & Ying Li
  (2024) A systematic review and meta-analysis
  of efficacy and safety of compound 
  glycyrrhizin combined with second-generation
  non-sedated antihistamine for the treatment 
  of chronic urticaria, Journal of 
  Dermatological Treatment, 35:1, 
  DOI: 10.1080/09546634.2023.2299597
  
format:
  comma-delimited

varnames: first row of data
  
missing_value_code: Not needed
 
size:
  rows: 25
  columns: 5
  
vars:
  study:
    label: first author and year of study
    
  treatment_events:
    label: number of successes in the treatment group
  
  treatment_total:
    label: number of patients in the treatment group
  
  control_events:
    label: number of successes in the control group
  
  control_total:
    label: number of patients in the control group
---