Table 4.
Correlation (r) Between Invasive Measurements of LVFP and E/è
| E/è | LVFP, mm Hg | ||||
|---|---|---|---|---|---|
| Location | Measure | LVEDP | PCWP | Pre‐A | LVMDP |
| All primary studies | |||||
| Lateral | r (95% CI) Studies Heterogeneity Total patients | 0.44 (0.30–0.57) (N=823, 24, 26, 37, 43, 46, 48, 50); (I 2=61, P=0.013) (n=419) | 0.46 (0.19– 0.73) (N=416, 18, 23, 42); (I 2=79, P=0.003 (n=188) | 0.23 (0.10–0.36) (N=420, 40, 46, 48); (I 2=0, P=0.56) (n=215) | 0.4 (N=115); N/A (n=64) |
| Septal | r (95% CI) Studies Heterogeneity Total patients | 0.28 (0.08–0.49) (N=424, 43, 46, 48); (I 2=54, P=0.09) (n=190) | 0.48 (0.26–0.70) (N=318, 42, 51) (I 2=42, P=0.18) (n=113) | 0.24 (0.09–0.40) (N=340, 46, 48); (I 2=15, P=0.31) (n=195) | 0.47 (0.30–0.64) (N=215, 32); (I 2=0, P=1.00) (n=103) |
| Mean | r (95% CI) Studies Heterogeneity Total patients | 0.38 (0.11–0.65) (N=435, 43, 46, 48); (I 2=81, P=0.001) (n=262) | 0.49 (0.25–0.73) (N=418, 29, 39, 42); (I 2=51, P=0.10) (n=122) | 0.31 (0.07–0.55) (N=530, 34, 40, 46, 48); (I 2=82, P<0.001) (n=349) | 0.45 (N=115); N/A (n=64) |
| Primary studies with simultaneous measurements of echocardiographic and invasive parameters | |||||
| Lateral | r (95% CI) Studies Heterogeneity Total patients | 0.51 (0.36–0.67) (N=324, 26, 48); (I 2=0, P=0.40) (n=143) | 0.7 (0.51–0.89) (N=118); N/A (n=55) | 0.4 (0.19–0.61) (N=148); N/A (n=38) | 0.4 (N=115); N/A (n=64) |
| Septal | r (95% CI) Studies Heterogeneity Total patients | 0.18 (−0.08 to 0.43) (N=224, 48); (I 2=31, P=0.23) (n=88) | 0.55 (0.32–0.78) (N=118) N/A (n=55) | 0.02 (−0.30 to 0.34) (N=148); N/A (n=38) | 0.47 (0.30–0.64) (N=215, 32); (I 2=0, P=1.00) (n=103) |
| Mean | r (95% CI) Studies Heterogeneity Total patients | 0.18 (−0.14 to 0.50) (N=148); N/A (n=38) | 0.6 (0.42–0.78) (N=318, 29, 39); (I 2=0, P=0.91) (n=86) | 0.21 (−0.11 to 0.53) (N=148); N/A (n=38) | 0.45 (N=115); N/A (n=64) |
Heterogeneity among the studies was estimated by using the I 2 statistic, and the corresponding P values are provided. N indicates number of studies; n, total patients N/A, not applicable.