Table 3.

Correlations Between Posterior Wall Measurements and Patient Characteristics

Variable	Correlation Coefficient	95% Confidence Interval	P Value
Body surface area	−0.016	−0.002–0.002	.441
Systolic blood pressure	0.115	0.008–0.001	<.0001
Diastolic blood pressure	−0.013	−0.001–0.002	.549
Heart rate	−0.080	−0.003–0	.0001
Hematocrit	0.131	0.033–0.005	<.0001