Practice of Comparative Effectiveness Research to Identify Treatment Characteristics of Similar Chinese Patent Medicine for Angina Pectoris

Table 1

Intergroup comparison of baseline population characteristics.

Index	Group 1 ()	Group 2 ()	Statistics	value
Sex
F	30	28	0.208	0.648
M	29	32
Age	63.25 ± 10.42	59.49 ± 11.74	1.8467	0.0673
Respiratory rate	21.71 ± 2.73	21.43 ± 2.91	0.5411	0.5895
Heart rate	71.09 ± 8.42	69.14 ± 7.94	1.3000	0.1962
Disease course	66.24 ± 10.56	66.37 ± 11.31	−0.0648	0.9485