Univariate (rank correlations, r) and multivariate relations (multiple regression forward selection, R2) between SF-36 domains and other variables (n=205)
Physical function (r) | Role– physical (r) | Bodily pain (r) | General health p (r) | Vitality (r) | Social function (r) | Role– emotional (r) | Mental health (r) | |
---|---|---|---|---|---|---|---|---|
Data are presented as Spearman rank correlation coefficients. Significance of correlations after Bonferroni adjustment of p values (α/48): *p<0.01; ** p<0.001; R = variance of dependent variable explained by multiple regression analysis. | ||||||||
CHF, congestive heart failure; general health p, general health perception; LVEF, left ventricular ejection fraction; NYHA, New York Heart Association; peak Vo2, peak oxygen uptake. | ||||||||
NYHA1 | −0.63** | −0.42** | −0.31** | −0.51** | −0.53** | −0.35** | −0.32** | −0.42** |
Peak Vo23 | 0.47** | 0.23** | 0.16 | 0.40** | 0.30** | 0.25 | 0.20 | 0.26* |
6 minute walk test2 | 0.56** | 0.28** | 0.26** | 0.34** | 0.41** | 0.29** | 0.24** | 0.29** |
LVEF4 | 0.11 | 0.05 | −0.05 | 0.16 | 0.01 | 0.05 | 0.11 | 0.03 |
Age5 | −0.13 | −0.09 | −0.11 | −0.16 | −0.06 | −0.02 | −0.22** | −0.05 |
Duration of CHF6 | −0.25 | −0.13 | −0.07 | −0.27 | −0.04 | −0.16 | 0.05 | −0.02 |
R 2 | R 2 | R 2 | R 2 | R 2 | R 2 | R 2 | R 2 | |
Step1(predictor) | 0.40(1) | 0.16(1) | 0.10(1) | 0.28(1) | 0.27(1) | 0.10(1) | 0.10(1) | 0.15(1) |
Step2(predictor) | 0.11(2) | |||||||
Total (predictor) | 0.51(1, 2) | 0.16(1) | 0.10(1) | 0.28(1) | 0.27(1) | 0.10(1) | 0.10(1) | 0.15(1) |