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. 2016 Sep;37(9):1629–1635. doi: 10.3174/ajnr.A4825

Table 2:

Statistical comparison of relative susceptibility from 4 groups of lesionsa

Comparison Nodular Shell <1 year
Shell −9.8621, (−11.7759, −7.9484), P < .0001
<1 year −20.3123, (−23.0288, −17.5959), P < .0001 −10.4502, (−13.6101, −7.2903), P < .0001
1–3 years −32.6287, (−35.9416, −29.3159), P < .0001 −22.7666, (−26.2751, −19.2581), P < .0001 −12.3164, (−16.3345, −8.2983), P < .0001
a

Data given as relative parameter estimates (β), (95% confidence limits), P value. Parameter estimates, 95% CI, and SE from multivariable generalized estimating equation, controlling for age, Expanded Disability Status Scale score, and disease duration. β estimates were obtained by setting the reference category to different lesion group.