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. 2018 Jun 1;13(6):e0198316. doi: 10.1371/journal.pone.0198316

Table 2. Summary of results from Tukey’s HSD test.

Head Impact Metrics
Res. Lin. Res. Ang. HIC15 HIP GSI
Mask Type Hockey 1 1 1 1 1
Shock 2 2 3 2 1,2
Steel 2 1,2 1,2 1 2
Titanium 2 3 2,3 2 3

Lower numbers indicate lower head injury metric values