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Table 1 Demographic data of patients with rheumatoid arthritis in the REAL study (9)

From: Rheumatoid artrhitis treatment in Brazil: data from a large real-life multicenter study

Demographic data

Absolute value or%

n

Years of study – median (min-max)

8 (0–20)

1081

Ethnicity

 

1115

 White

56.8%

 

 Black

10.9%

 

 Pardo

31.3%

 

 Others

1.0%

 

Social Classa

 

1115

 A

1.4%

 

 B1

3.5%

 

 B2

18.4%

 

 C1

27.4%

 

 C2

31.3%

 

 D-E

18.0%

 
  1. a Social classes based on average household income (Brazil criterion) A1: R $ 20,888 B1: R $ 9254 B2: R $ 4852 C1 R $ 2705 C2 R $ 1625 D- E: R $ 768