1naresh
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Levels (No.) Raw Data Change from Baseline in Degrees (Mean) (95% CI)a ANCOVA Change from Baseline in Degrees (LS Mean) (95% CI) ANCOVA Estimate of Mean Difference (95% CI) ANCOVA P Value BKP VP BKP VP BKP VP Post-op 213 195 3.10 (2.39–3.80) 3.41 (2.61–4.21) 3.34 (2.70–3.99) 3.14 (2.47–3.81) 0.21 (−0.73–1.14) .663 3 Mo 168 155 1.78 (0.98–2.58) 2.28 (1.37–3.19) 2.00 (1.27–2.72) 2.04 (1.28–2.80) −0.04 (−1.10–1.01) .933 12 Mo 154 127 1.97 (1.11–2.82) 1.51 (0.58–2.44) 2.18 (1.47–2.89) 1.26 (0.48–2.04) 0.92 (−0.14–1.98) .089 24 Mo 99 92 2.09 (0.90–3.28) 1.43 (0.39–2.47) 2.46 (1.55–3.37) 1.04 (0.09–1.98) 1.42 (0.10–2.74) .036
Note:—Post-op indicates postoperative; LS, least squares.
↵a On the basis of the paired t test, changes from baseline results at each time point within each group (BKP and VP) were statistically significant (P ≤ .007).