. Author manuscript; available in PMC: 2015 Jan 27.

Published in final edited form as: Circulation. 2001 Jul 17;104(3):310–316. doi: 10.1161/01.cir.104.3.310

TABLE 2.

Frequency of Differences Beyond Clinically Acceptable Limits of Disagreement

Measurement	Clinically Acceptable Limits	Frequency Beyond Limits		Clinically^* Acceptable Limits	Frequency Beyond Limits
Measurement	Clinically Acceptable Limits	n	%	Clinically^* Acceptable Limits	n	%
Fractional shortening, % (n=724)	Within ±2.5%	411	56.8	±10% of mean	324	44.8
End-diastolic dimension, cm (n=724)	Within ±0.15 cm	187	25.8	±10% of mean	71	9.8
End-diastolic posterior wall thickness, cm (n=735)	Within ±0.20 cm	44	6.0	±10% of mean	479	65.2
End-diastolic septal thickness, cm (n=726)	Within ±0.20 cm	118	16.3	±10% of mean	504	69.4

Secondary standard.