Table 3. Differences in Means between Primary Care Physicians and Cardiologists

Measurement	Difference in Means	95% Confidence Interval^*	SD	P Value^{^†}
SWT (mm)	0.4	−0.3 to 1.0	3.3	.232
PWT (mm)	1.2^*	0.3–2.1	4.4	.007
LVEDD (mm)	−2.1^*	−3.8 to −0.5	8.5	.013
LVMI (g/m²)	0.5	−6.6 to 7.6	36.1	.885

↵* Confidence intervals are calculated by standard error of the means.
↵† P < .05.
LVEDD, left ventricular end diastolic diameter; LVMI, left ventricular mass index; PWT, posterior wall thickness; SD, standard deviation; SWT, septal wall thickness.