Comparison of the characteristics of the herniated disc on MRI between sciatica patients with and without disabling back pain at baseline.

N = 330. Values are n (%).¶Vertebral Endplate Signal Changes were defined according to criteria of Modic. Type 1 lesions: hypointense in T1-weighted sequences and hyperintense in T2-weighted sequences. Type 2 lesions: increased signal on T1 weighted sequences and isointense or slightly hyperintense signal on T2 weighted sequences. Type 3 lesions: hypointense both in T1- and T2-weighted sequences.样本量N=330，数据以例数（百分比）形式呈现。 椎体终板信号改变依据莫迪奇（Modic）分型标准进行定义：1型病变在T1加权序列呈低信号、T2加权序列呈高信号；2型病变在T1加权序列信号增高，T2加权序列呈等信号或稍高信号；3型病变在T1、T2加权序列均呈低信号。