Reliability of focused cardiac ultrasound by novice sonographer in preoperative anaesthetic assessment: an observational study

Table 4 Cumulative analysis of compliance (Anaesthetist compared with Cardiologist) in all assessed categories of the A-F scheme

All categories		n = 2325 (100 %)
Concordant answers +	Anaesth+	108 (4.65 %)
Concordant answers +	Cardiol +	108 (4.65 %)
Concordant Answers -	Anaesth -	2166 (93.2 %)
Concordant Answers -	Cardiol -	2166 (93.2 %)
Non-concordant	Anaesth -	21 (0.9 %)
Non-concordant	Cardiol +	21 (0.9 %)
Non-concordant	Anaesth +	30 (1.3 %)
Non-concordant	Cardiol -	30 (1.3 %)
Kappa		0.7974
P (McNemar)		0.2076
Sensitivity (Anaesthetist) [95 % CI]		83.7 % [76.4 – 89.1 %]
Specificity (Anaesthetist) [95 % CI]		98.6 % [98.0 – 99.0 %]
Positive predictive value (PPV) [95 % CI]		78.3 %) [70.7–84.3 %]
Negative predictive value (NPV) [95 % CI]		99.0 % [98.5–99.4 %]

1. Anaesth + (pathology pointed by anaesthetist); 2. Anaesth- (no pathology pointed by anaesthetist); 3. Cardiol + (pathology pointed by cardiologist); 4. Cardiol - (no pathology pointed by cardiologist)

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