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. 2017 Jun 6;2017:3681645. doi: 10.1155/2017/3681645

Table 4.

Comparison between serum IL-1β level in patients with PFS and controls.

Group n Levels of IL-1β
(pg/mL)
P value
Cases 42 28.55 ± 2.58 <0.001
Controls 50 20.12 ± 2.28

PFS: primary frozen shoulder.