| Model 1: No Correction | Model 2: Mean Difference Correction | Model 3: Predicted Difference Correction | Model 4: Model-based Correction | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Model Parameter | Del- | Del+ | Net Diff. | Del- | Del+ | Net Diff. | Del- | Del+ | Net Diff. | NSC | Del- | Del+ | Net Diff. |
Intercept | 58.32 (0.31) | 55.33 (0.55) | −3.00* (0.63) | 58.32 (0.31) | 55.33 (0.55) | − 3.00* (0.63) | 58.31 (0.32) | 55.35 (0.57) | −2.97* (0.65) | 57.86 (0.61) | 58.32 (0.31) | 55.41 (0.56) | −2.91* (0.64) |
Change at month 1 | 1.08 (0.16) | −0.20 (0.28) | −1.28* (0.32) | −0.73 (0.16) | −2.01 (0.28) | −1.28* (0.32) | −0.67 (0.16) | −2.27 (0.28) | −1.60* (0.32) | 1.80 (0.29) | 1.08 (0.15) | −0.20 (0.28) | −1.28* (0.31) |
Change at month 2 | 1.39 (0.14) | 2.33 (0.26) | 0.94* (0.29) | 1.08 (0.14) | 2.02 (0.26) | 0.94* (0.29) | 1.04 (0.14) | 2.17 (0.26) | 1.14* (0.29) | 0.32 (0.27) | 1.39 (0.14) | 2.33 (0.25) | 0.94* (0.29) |
Change from months 2–18 | 0.23 (0.12) | −0.11 (0.22) | − 0.34 (0.25) | 0.40 (0.12) | 0.06 (0.22) | −0.34 (0.25) | 0.39 (0.12) | 0.07 (0.22) | −0.32 (0.25) | −0.10 (0.27) | 0.23 (0.12) | −0.11 (0.22) | − 0.34 (0.25) |
Model R2 by group | 0.32 | 0.27 | Â | 0.31 | 0.25 | Â | 0.31 | 0.25 | Â | 0.47 | 0.32 | 0.27 | Â |
Model R2 | 0.35 | 0.33 | 0.33 | 0.37 |