A Comparative Study between Olanzapine and Risperidone Regarding Drug-Induced Electrocardiographic Changes

Table 1

Baseline demographic and electrocardiographic characteristics of the participants.

Variables	Olanzapine; ()	Risperidone; ()			df		95% CI
Gender, female	100%	100%
Age, mean of years	25.63 ± 6.01	23.92 ± 5.87		1.74	266	0.08	−3.64, 0.22
Married cases	118	94	0.279		1	0.77	−0.08, 0.11
Duration of treatment prior to discharge, mean of days	24.54 ± 22	20.7 ± 7.25		1.39	266	0.16	−9.286, 1.60
Baseline HR	86.91 ± 27.5	92 ± 21.5		1.24	266	0.21	−2.99, 13.17
Baseline P-R interval	0.13 ± 0.06	0.14 ± 0.05		1.09	266	0.27	−0.008, 0.02
Baseline QTcF	0.40 ± 0.04	0.40 ± 0.02		0.00	266	1.00	−0.01, 0.01
Baseline QRS complex	0.08 ± 0.02	0.07 ± 0.02		1.82	266	0.07	−0.012, 0.0005
Baseline VAT	0.03 ± 0.01	0.02 ± 0.007		1.39	266	0.16	−0.004, 0.0008

HR: heart rate, QTcF: corrected QT by Fridericia’s formula, and VAT: ventricular activation time.