Table 5.

Comparison of reliability indices and Cohen’s kappa coefficient

Type of shock	Reliability indices	Our study (n = 100)	Ghane et al. (n = 77)	Bagheri-Hariri et al. (n = 148)	Ahn et al. (n = 308)
Cardiogenic	Sensitivity (%)	100.00	90.00	60.00	94.30
	Specificity (%)	98.70	98.00	100.00	97.90
	PPV (%)	95.20	94.70	100.00	93.00
	NPV (%)	100.00	97.00	90.9	98.30
	Cohen’s (κ)	0.9500	0.89	0.71	0.90
Hypovolemic	Sensitivity (%)	100.00	100.00	100.00	100.00
	Specificity (%)	98.00	96.20	72.7	98.40
	PPV (%)	85.70	88.90	82.4	28.60
	NPV (%)	100.00	100.00	100.00	100.00
	Cohen’s (κ)	0.8570	0.920	0.750	0.439
Obstructive	Sensitivity (%)	100.00	90.90	–	100.00
	Specificity (%)	100.00	98.20		100.00
	PPV (%)	100.00	90.90		100.00
	NPV (%)	100.00	98.30		100.00
	Cohen’s (κ)	1.0000	0.890		1.00
Distributive	Sensitivity (%)	73.68	72.70	75.00	63.60
	Specificity (%)	100.00	100.00	100.00	99.70
	PPV (%)	100.00	100.00	100.00	87.50
	NPV (%)	86.11	95.10	95.50	98.70
	Cohen’s (κ)	0.7170	0.810	0.830	0.729
Mixed	Sensitivity (%)	92.00	63.6	100.00	–
	Specificity (%)	90.41	98.2	100.00
	PPV (%)	76.47	87.5	100.00
	NPV (%)	97.00	93.3	100.00
	Cohen’s (κ)	0.7640	0.700	1.000
Composite	Cohen’s (κ)	0.89	0.71	0.84	0.870