An electrocardiographic score to predict pulmonary hypertension in children with atrial septal defect

BMC Pediatrics

Table 3 Adjusted weights for prediction of pulmonary hypertension by logistic determination

Parameters		Pulmonary hypertension (n = 50)	Non-Pulmonary hypertension (n = 94)	Likelihood ratio		Crude weight (Logistic coefficient)	LR*log coefficient	Adjusted weight (log natural)
QRS axis	≥ 120°	26	19	LR+	2.57	2.1	5.4	2
QRS axis	< 120°	24	75	LR-	0.60	0.5	0	0
P wave at lead II	≥ 3 mm	25	3	LR+	15.67	11	172	5
P wave at lead II	< 3 mm	25	91	LR-	0.52	0.1	0	0
R without S at V1	Yes	28	6	LR+	8.77	6	53	4
R without S at V1	No	22	88	LR-	0.47	0.2	0.1	-2
Q wave at V1	Yes	18	2	LR+	16.92	8	135	5
Q wave at V1	No	32	92	LR-	0.65	0.1	0	0
RBBB	Yes	31	9	LR+	6.48	4.7	30	3
RBBB	No	19	85	LR-	0.42	0.2	0.1	-2
R wave at V1, V2 or aVR	High	31	19	LR+	3.07	3	9.2	2
R wave at V1, V2 or aVR	Normal	19	75	LR-	0.48	0.3	0.1	-2
S at V6 or lead I	High	37	24	LR+	2.90	1.5	4.4	1
S at V6 or lead I	Normal	13	70	LR-	0.35	0.7	0.2	-1
R/S ratio at V1 or V2 > N or V6 < 1	Abnormal	43	53	LR+	1.53	0.5	0	0
R/S ratio at V1 or V2 > N or V6 < 1	Normal	7	41	LR-	0.32	2	0.6	0

ISSN: 1471-2431