Ladder-Like Low Iodine Delivery Rate Injection Protocols Based on BMI at 70 KV by Automated Tube Voltage Selection in Coronary CTA

Table 1

Patients characteristics (‾x ± s).

		Experimental group	Control group	T/Z
Sex	Male	75	83	0.93^a	0.335
	Female	65	57
Age (years)		59.0 ± 11.6	61.3 ± 11.7	−1.841	0.068
Height (cm)		163.8 ± 7.2	163.7 ± 7.6	−0.110	0.902
Weight (kg)		60.5 ± 8.5	60.3 ± 8.3	−0.058	0.954
BMI (kg/m^2)		22.50 ± 2.17	22.41 ± 2.37	−0.053	0.958
Heart rate (beats/min)		70.6 ± 9.3	71.1 ± 11.9	−0.632	0.527