Table 3.

Interobserver Agreement of Lung Ultrasound by Lung Field Location

Finding	Kappa Value	95% CI	Degree of Agreement
B‐lines
Anterior B‐lines	0.79	[0.72–0.87]	Substantial agreement
Lateral B‐lines	0.76	[0.69–0.83]	Substantial agreement
Posterior B‐lines	0.70	[0.63–0.77]	Substantial agreement
Bilateral B‐lines	0.70	[0.63–0.78]	Substantial agreement
Consolidation
Anterior consolidation	0.71	[0.63–0.78]	Substantial agreement
Lateral consolidation	0.56	[0.48–0.63]	Moderate agreement
Posterior zone consolidation	0.86	[0.78–0.93]	Near perfect Agreement
Presence of bilateral consolidation	0.28	[0.20–0.35]	Fair agreement
Pleural thickening
Anterior pleural thickening	0.33	[0.26–0.40]	Fair agreement
Lateral pleural thickening	0.34	[0.26–0.41]	Fair agreement
Posterior pleural thickening	0.48	[0.41–0.55]	Moderate agreement
Presence of bilateral pleural thickening	0.33	[0.26–0.41]	Fair agreement
Effusions
Presence of bilateral effusion	0.40	[0.32–0.47]	Fair agreement

Note: Lung zones (anterior, lateral, and posterior) are described in Figure 1.