. 2002 Mar;53(3):243–249. doi: 10.1046/j.0306-5251.2001.01560.x

Table 4.

Average cardiovascular parameters during the last 3 weeks of each treatment.^†

	Placebo	Diltiazem	Nifedipine	P value
Blood pressure(mmHg)
systolic	113±1	116±2	114±1	NS
diastolic	70±1	70±1	67±1
Heart rate(beats min⁻¹)	75±2	72±2	83±2	0.0001
P-R interval	0.165±0.003	0.178±0.003	0.160±0.002	0.0001

^†

Cardiovascular parameters were within normal limits for all subjects during the screening visit, a requirement for entrance into the study.