N	n	% AHFS (95% CI)	Sensitivity % (95% CI)	Specificity % (95% CI)	Positive LR (95% CI)	Negative LR (95% CI)
Chest radiography
Kerley B lines	2	814	46.8 (43.4 to 50.2)	9.2 (6.5 to 12.5)	98.8 (97.3 to 99.6)	6.5 (2.6 to 16.2)	0.88 (0.69 to 1.13)
Interstitial edema	3	2,001	48.3 (46.2 to 50.5)	31.1 (28.2 to 34.2)	95.1 (93.6 to 96.3)	6.4 (3.4 to 12.2)	0.73 (0.68 to 0.78)
Cephalization	5	1,338	54.0 (51.3 to 56.6)	44.7 (41.1 to 48.4)	94.6 (92.6 to 96.3)	5.6 (2.9 to 10.4)	0.53 (0.39 to 0.72)
Alveolar edema	3	2,001	48.3 (46.2 to 50.5)	5.7 (4.7 to 6.9)	98.9 (98.4 to 99.3)	5.3 (3.3 to 8.5)	0.95 (0.94 to 0.97)
Lung ultrasonography
Positive B-line scan*	8	1,914	48.2 (46.0 to 50.5)	85.3 (82.8 to 87.5)	92.7 (90.9 to 94.3)	7.4 (4.2 to 12.8)	0.16 (0.05 to 0.51)
Bedside echocardiography
Restrictive mitral pattern†	1	125	43.2 (34.9 to 52.0)	81.5 (68.6 tp 90.7)	90.1 (80.7 to 95.9)	8.3 (4.0 to 16.9)	0.21 (0.12 to 0.36)