Table 4: Analysis of the PCS component of SF12 using the paired sample T Test.

When Compared to Preoperative PCS Paired Differences Sig. (2 – tailed)
Mean Differences Std. Deviation
at 6 months -6.20625 8.45399 0.010*
at 12 months -9.44286 9.6716 0.003*
at 24 months -7.58889 10.27566 0.006*
at 36 months -3.85188 11.53810 0.202
at 60 months -6.34375 14.50807 0.101

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