From: Agreement between aggregate and individual-level measures of income and education: a comparison across three patient groups
Asthma
n(%)
Diabetes
Rheumatoid Arthritis
p-value*
<20,000
12 (13)
2 (6)
0 (0)
0.03**
20,000-50,000
52 (63)
37 (49)
56 (58)
0.23
>50,000
77(60)
89 (72)
53 (64)
0.12