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. 2004 Dec 9;2:70. doi: 10.1186/1477-7525-2-70

Table 4.

Comparison of multiple regression, bootstrap case and model based resampling SE and CI estimates from the OA Knee data

Dependent GROUP coefficient 95% CI Interval
Variable Model N graphic file with name 1477-7525-2-70-i6.gif SE graphic file with name 1477-7525-2-70-i6.gif/SE p Lower Upper Length Shape
Physical Function OLS 165 13.3 3.07 4.31 0.001 7.19 19.32 12.14 1.00
Case 3.02 4.39 7.64 19.69 12.05 1.15
Model 3.05 4.35 7.49 19.49 12.00 1.08
Role Physical OLS 177 -0.5 4.89 -0.11 0.915 -10.16 9.12 19.29 1.00
Case 4.39 -0.12 -8.60 8.51 17.11 1.12
Model 4.86 -0.11 -10.11 8.93 19.04 0.99
Bodily Pain OLS 200 14.7 3.39 4.34 0.000 8.01 21.38 13.37 1.00
Case 3.41 4.30 7.81 21.41 13.60 0.98
Model 3.36 4.38 8.07 21.25 13.18 0.99
General Health OLS 173 4.7 2.01 2.32 0.021 0.71 8.65 7.95 1.00
Case 2.03 7.26 0.69 8.69 8.00 1.01
Model 1.98 2.37 0.70 8.48 7.78 0.95
Energy OLS 185 6.5 2.46 2.64 0.009 1.65 11.36 9.72 1.00
Case 2.50 2.60 1.75 11.63 9.88 1.08
Model 2.46 2.65 1.49 11.04 9.54 0.90
Social Function OLS 194 9.1 3.70 2.46 0.015 1.82 16.41 14.59 1.00
Case 3.52 2.59 2.14 16.06 13.92 1.00
Model 3.65 2.50 1.72 16.09 14.37 0.94
Role Emotional OLS 184 9.4 6.10 1.55 0.124 -2.60 21.48 24.08 1.00
Case 5.89 1.60 -1.90 20.85 22.75 1.01
Model 6.03 1.57 -2.37 20.90 23.27 0.97
Mental Health OLS 191 1.1 2.15 0.51 0.613 -3.15 5.33 8.48 1.00
Case 2.32 0.47 -3.54 5.42 8.96 0.94
Model 2.14 0.51 -3.17 5.12 8.28 0.95

Bootstrap BCa confidence intervals based 5000 bootstrap replications.