Table 5

Disease activity in “high GDP” and “low GDP” countries, according to current medications

	“High GDP” countries	“Low GDP” countries	p Value†
	DAS28, mean	DAS28, mean	p Value†
Methotrexate
Taking methotrexate now	3.6	5.1	<0.001
No methotrexate now	3.8	5.2	<0.001
p Value*	0.003	0.028
Prednisone
Taking prednisone now	3.9	5.3	<0.001
No prednisone now	3.5	4.8	<0.001
p Value*	0.001	0.001
Biologicals
Taking biologicals now	3.7	4.4	<0.001
No biologicals now	3.7	5.2	<0.001
p Value*	0.63	<0.001

*Comparison within “high GDP”/“low GDP” countries. †Comparison between “high GDP”/“low GDP” countries. DAS28, disease activity score in 28 joints; GDP, gross domestic product.