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. Author manuscript; available in PMC: 2011 Jun 1.
Published in final edited form as: Respir Med. 2010 Mar 26;104(6):829–839. doi: 10.1016/j.rmed.2010.02.015

Table 3.

Physical function outcomes by intervention arm at baseline and follow-up.

Variable P value TET vs LAP, average effect across all follow-up visits
Baseline 3 Mo 6 Mo 12 Mo
Six-min Walk (m)
 TET 410.7 428.7 ± 8.3 (0.03) 439.8 ± 9.9 (<0.01) 430.5 ± 10.0 (0.05) 0.41
 LAP 410.7 434.8 ± 8.8 (<0.01) 426.7 ± 10.3 (0.12) 408.1 ± 10.5 (0.81)
 P value, TET vs LAP 0.61 0.36 0.13
Stair Climb (sec)
 TET 15.1 14.0 ± 0.5 (0.02) 14.1 ± 0.6 (0.07) 14.3 ± 0.6 (0.17) 0.54
 LAP 15.1 14.7 ± 0.5 (0.37) 14.6 ± 0.6 (0.39) 14.5 ± 0.6 (0.30)
 P value, TET vs LAP 0.36 0.52 0.83
SPPB
 TET 10.6 11.0 ± 0.2 (0.01) 11.0 ± 0.2 (0.04) 11.2 ± 0.2 (<0.01) 0.61
 LAP 10.6 11.0 ± 0.2 (0.03) 11.4 ± 0.2 <0.01) 11.1 ± 0.2 (<0.01)
 P value, TET vs LAP 0.89 0.11 0.81
Four Meter Walk (sec)
 TET 3.9 3.5 ± 0.1 (<0.01) 3.6 ± 0.1 (<0.01) 3.5 ± 0.1 (<0.01) 0.80
 LAP 3.9 3.6 ± 0.1 (<0.01) 3.5 ± 0.1 (<0.01) 3.5 ± 0.1 (<0.01)
 P value, TET vs LAP 0.68 0.54 0.73
Chair Rise (sec)
 TET 12.8 10.2 ± 0.4 (<0.01) 9.8 ± 0.4 (<0.01) 10.3 ± 0.4 (<0.01) 0.74
 LAP 12.8 10.5 ± 0.4 (<0.01) 10.1 ± 0.4 (<0.01) 10.0 ± 0.4 (<0.01)
 P value, TET vs LAP 0.49 0.53 0.64
Balance (sec)
 TET 29.1 28.6 ± 0.3 (0.09) 28.8 ± 0.4 (0.38) 29.1 ± 0.3 (0.98) 0.10
 LAP 29.1 29.3 ± 0.4 (0.71) 29.6 ± 0.4 (0.20) 29.6 ± 0.3 (0.12)
 P value, TET vs LAP 0.16 0.13 0.27

All values are estimated least squares means (± standard error of the mean) from repeated measures analysis of covariance adjusted for gender and baseline value. Baseline value is overall mean used to obtain least squares means at follow-up visits. P values for within group analysis comparing follow up visits to baseline values are reported adjacent to individual mean values.