Statistical comparison of relative R2* from 4 groups of lesionsa
| Comparison | Nodular | Shell | <1 year |
|---|---|---|---|
| Shell | 2.3409, (1.4980, 3.1837), P < .0001 | – | – |
| < 1 year | −2.4309, (−3.1174, −1.7443), P < .0001 | −4.7717, (−5.7643, −3.7792), P < .0001 | – |
| 1–3 years | −3.6385, (−4.6191, −2.6578), P < .0001 | −5.9793, (−7.0956, −4.863.), P < .0001 | −1.2076, (−2.0439, −0.3712), P = .0047 |
↵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, and disease duration. β estimates were obtained by setting the reference category to different lesion group.