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. 2015 Feb 19;10(2):e0117359. doi: 10.1371/journal.pone.0117359

Table 1. Association between 6-min walk test performance and quality of life domains.

Domain Linear correlation Multivariable Linear regression
Overall (N = 130) Men (N = 60) Women (N = 70) Overall (N = 130)* Men (N = 60) # Women (N = 70) #
r P value r P value r P value β P value β P value β P value
PF 0.38 <0.001 0.33 0.004 0.57 <0.001 0.25 0.02 0.29 0.2 0.57 <0.001
RE 0.16 0.02 0.10 0.2 0.35 0.001 -0.002 0.9 0.31 0.8 0.19 0.2
RP 0.33 <0.001 0.60 <0.001 0.27 0.01 0.28 0.01 0.29 0.08 0.38 0.02
SF 0.27 0.001 0.27 0.01 0.37 0.001 0.10 0.3 0.06 0.7 0.40 0.01
MH 0.16 0.02 0.17 0.09 0.06 0.2 0.02 0.8 0.32 0.7 0.004 0.9
VT 0.44 <0.001 0.20 0.054 0.33 0.002 0.21 0.06 0.34 0.053 0.23 0.1
GH 0.18 0.01 -0.20 0.06 0.38 0.006 0.06 0.5 0.04 0.8 0.46 0.01

PF, physical functioning; RE, role-emotional; RP, role-physical; SF, social functioning; MH, mental health; VT, vitality; GH, general health.

*Adjusted for sex, body weight, height, and predicted distance.

#Adjusted for body weight, height and predicted distance.