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. 2013 Jan 17;143(6):1671–1678. doi: 10.1378/chest.12-0161

Table 4.

—Mixed-Effects Model-Generated Parameter Estimates for SGRQ Change Scores Resulting From Change in Anchor Scores

Associations Domain Symptoms Activity Impact Total
Cross-sectional FEV1, mL −0.014 ± 0.004 (.002) −0.016 ± 0.004 (< .0001) −0.015 ± 0.004 (.0009) −0.015 ± 0.004 (.0001)
FEV1% −0.46 ± 0.13 (.0009) −0.48 ± 0.11 (< .0001) −0.39 ± 0.13 (.003) −0.42 ± 0.11 (.0002)
Dlco, mL/min/mm Hg −1.11 ± 0.45 (.02) −1.72 ± 0.40 (< .0001) −0.84 ± 0.58 (.21) −1.15 ± 0.38 (.005)
Dlco % −0.30 ± 0.11 (.01) −0.42 ± 0.10 (< .0001) −0.20 ± 0.11 (.08) −0.29 ± 0.09 (.004)
6MWD, m −0.03 ± 0.02 (.12) −0.07 ± 0.02 (.0002) −0.04 ± 0.02 (.03) −0.05 ± 0.02 (.004)
Log(VEGF-D) 4.14 ± 2.16 (.06) 5.95 ± 2.22 (.009) 3.45 ± 2.17 (.12) 4.34 ± 1.95 (.03)
Longitudinal FEV1, mL −0.018 ± 0.007 (.02) −0.020 ± 0.005 (< .0001) −0.021 ± 0.006 (.0007) −0.020 ± 0.005 (< .0001)
0.583 0.744 0.714 0.750
FEV1% −0.49 ± 0.22 (.03) −0.56 ± 0.14 (< .0001) −0.61 ± 0.18 (.001) −0.57 ± 0.14 (.0003)
0.531 0.759 0.744 0.776
Dlco, mL/min/mm Hg −0.23 ± 0.75 (.76) −0.42 ± 0.56 (.47) −0.03 ± 0.82 (.97) −0.28 ± 0.53 (.60)
0.580 0.788 0.784 0.797
Dlco % −0.06 ± 0.18 (.73) −0.10 ± 0.14 (.49) −0.05 ± 0.15 (.76) −0.09 ± 0.12 (.47)
0.580 0.798 0.783 0.803
6MWD, m −0.05 ± 0.02 (.01) −0.02 ± 0.02 (.15) −0.05 ± 0.02 (.008) −0.04 ± 0.01 (.003)
0.612 0.789 0.716 0.776
Log(VEGF-D) 4.85 ± 2.51 (.06) 1.63 ± 1.70 (.34) 3.86 ± 1.89 (.04) 3.27 ± 1.51 (.03)
0.636 0.825 0.763 0.815

Values are mixed-effects model parameter estimate ± SE (P value). In the Longitudinal section of the table, the value below the P value is the lowest of the estimated within-patient correlations from the model. See Table 1 for expansion of abbreviations.