Table 7

Independent predictors for horizontal clockwise rotation of the QRS-axis

ECG	Independent variable	β	OR	95% CI	p Value	R² adj
Model 1						0.18
	Gender*	−0.0147	1.0298	(0.3138 to 3.3553)	0.96
	BMI	0.1465	1.1578	(1.0277 to 1.3238)	0.02
	Obstruction	0.6057	1.8325	(0.7400 to 4.8112)	0.20
	Emphysema	−0.1698	0.8437	(0.5020 to 1.3936)	0.51
	Afterload	0.1595	1.1730	(0.9371 to 1.4739)	0.16
Model 2						0.16
	Gender*	−0.0739	1.1594	(0.4064 to 3.2821)	0.78
	BMI	0.1331	1.1424	(1.0251 to 1.2867)	0.02
	Obstruction	0.5674	1.7638	(1.0425 to 3.1681)	0.04
Model 3						0.16
	Gender*	−0.0854	1.1864	(0.3928 to 3.5702)	0.76
	BMI	0.1585	1.1717	(1.0450 to 1.3344)	0.01
	Afterload	0.1894	1.2085	(1.0103 to 1.4622)	0.04

Multiple logistic regression analysis.
Bold values are statistically significant. p Values refer to Likelihood ratio Chi square test of the regression estimates.
*Female as reference category.
β, regression coefficient; R² adj, adjusted R-square; BMI, body mass index; RV/LV EDVI, right ventricle end-diastolic volume ratio; RVH, right ventricular hypertrophy.