Skip to main content

View full-text article in PMC

. 2014 Feb;6(2):126–133. doi: 10.3978/j.issn.2072-1439.2014.02.01

Table 5. Diagnosis at given cutoff points of the QRS amplitude.

Cutoff point (%)	% (95% CI)
Cutoff point (%)	Se	Sp	PV+	PV–	Coincidence rate
≤90	89.47 (66.86, 98.70)	45.45 (16.75, 76.62)	90 (68.30, 98.77)	71.43 (29.04, 96.33)	73.33 (54.11, 87.72
≤85	73.68 (48.80, 90.85)	54.55 (23.40, 83.25)	73.68 (48.80, 90.85)	54.55 (23.40, 83.25)	66.67 (47.19, 82.71)
≤80	68.42 (43.45, 87.42)	54.55 (23.40, 83.25)	72.22 (46.52, 90.31)	50 (21.09, 78.91)	1.33 (43.86, 80.07)

Se, sensitivity; Sp, specificity; PV+, positive predictive values; PV–, negative predictive values; CI, confidence interval.