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. 2020 Feb 7;10:2113. doi: 10.1038/s41598-020-58746-5

Table 2.

Comparison between boys and girls FRAP values before and after cone beam computed tomography (CBCT) examination.

Boys (N = 62) Girls (N = 55) P value* t-value Degrees of freedom
FRAP value Before CBCT 265.90 ± 19.39 263.00 ± 16.85 0.9318 0.086 132
FRAP value 30 minutes after CBCT 277.00 ± 22.84 295.40 ± 18.35 0.4963 0.68 132
P value 0.4194 0.0268
t-value 0.81 2.28
Degrees of Freedom 61 54

*For inter-group testing a paired student T-test was performed; for intra-group testing: an unpaired student T-test was performed.