Table 2:

Comparison of disease duration and ARR between patients with and without CE during an acute attack

	CE Present	CE Absent	P Value
Disease duration (mean) (yr)	4.76 ± 4.81 (n = 21)	7.26 ± 5.75 (n = 38)	.05
ARR (mean)	1.15 ± 0.73 (n = 21)	0.73 ± 0.52 (n = 38)	.03^{^a}