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. Author manuscript; available in PMC: 2009 Nov 1.
Published in final edited form as: Mech Ageing Dev. 2008 Aug 6;129(11):625–631. doi: 10.1016/j.mad.2008.07.003

Table 1.

Intercorrelations of Extremity Muscle Strength and Respiratory Function Correlationsb

Variable Sexa Age Education
Extremity Muscle Strength −11.7 [354], p<0.001 −0.25 0.16
Respiratory Muscle Strength −11.3 [361], p<0.001 −0.21 0.14
Pulmonary Function −15.4 [320], p<0.001 −0.31 0.21
a

From t-tests comparing the means for women minus men for each variable. Degrees of freedom are based on Satterthwaite’s approximation when the variances of the two groups were statistically unequal.

b

Pearson correlation p<0.001 for all correlations.