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Moreover, our results showed weaker correlations between the physical functioning subdimension and SOC.
The strongest correlations both before and after surgery were observed between the physical functioning and fatigue scales (ranging from -.58 to -.54).
The non-significant or weak correlations between the physical functioning scale and most other measures does not correspond with most previous studies.
The highest correlation was seen between the physical functioning scale of the SF-36 (r= 0.55) and the lowest with the pain and emotional role scale (r= 0.29 for both scales) (Table 1).
Within-person factor correlations were smaller (range r = .29 to.85, ps < .01) and not found between the Mental Health factor and others, or between the Physical Functioning and Physical or Emotional Role Limitations factors (see Table 5).> -wrap-foot> Note.
As to the intercorrelations among the various Generic Core Scales and the Cardiac Module scales estimated using Pearson correlation coefficients, a high correlation was found between the Physical Functioning Scale scores and Cardiac Symptoms Scale scores for children (r = 0.63) and for parents (r = 0.66).
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Moderately high correlations were found between the physical function (r = 0.78), vitality (r = 0.67), social functioning (r = 0.64) scales of the SF-36 and the PBSI.
However, some limitations were apparent that need further study, including the low correlation between the physical function scale and similar or conceptually related scales and the low test-retest reliability of the anxiety and morning tiredness items.
The Mental Health, Vitality, and Bodily Pain scales discriminated best between sexes, while the Physical Functioning, Role Physical, and General Health scales discriminated best between groups that differed by age, schooling, and race/colour.
They found a negative correlation between the Charlson index and the Physical Functioning and General Health outcomes [ 16].
Age-adjustment was not appropriate, because the relation between age and the physical functions in particular was found to be nonlinear (as the decline with ageing was generally steeper for older subjects than for younger ones).
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