Table 4.

Predictors of change in 6-minute walk distance with rehabilitation.

Predictor	Parameter Estimate (95% CI)	P-value
Age, decades	4.58 (−10.21,19.37)	0.543
Ethnicity	−12.48 (−60.05,35.08)	0.606
Gender	−2.04 (−29.98,25.89)	0.886
Days Between 6MWD Assessments	0.40 (−0.37,1.18)	0.310
Lung Disease Type	−45.60 (−130.00,34.00)	0.252
Baseline Exercise Oxygen Use (liters/min)	−1.68 (−3.23, −0.12)	0.035
Pre-Rehab SOBQ (continuous predictor)	−0.24 (−1.07, 0.59)	0.569
Pre-Rehab CESD (≥ to 16)	1.88 (−31.86,35.62)	0.913
Pre-Rehab QLI (continuous predictor)	−1.85 (−5.91,2.22)	0.371
Pre-Rehab 6MWD (continuous predictor)	−0.35 (−0.50, −0.21)	< 0.001

SOBQ= San Diego Shortness of Breath Questionnaire, CESD= Center for Epidemiological Studies-Depression Scale, QLI= Ferrans and Powers Quality of Life Index Pulmonary Version III, 6MWD=six-minute walk distance