The Effect of Adoption of an Electronic Health Record on Duplicate Testing

Table 1

Baseline demographic characteristics and indications for the echocardiogram (LV function = left ventricular function, HTN HD = hypertensive heart disease).

Date	July 2007–June 2008	July 2009–June 2010	value	July 2011–June 2012	value
Total patients with TTEs	10399	7103		7317
Age	73 ± 17	73 17	NS	71 17	0.01
Sex	Male 48%	Male 48%	NS	Male 48%	NS
Indications selected by ordering physician	() LV function (15%); () HTN HD (12%); () Dyspnea (11%)	() LV function (14%); () HTN HD (12%); () Dyspnea (11%)		() CHF (10%); () LV function (9%); () Dyspnea (7%)	NS