Do Herbal Formulas Influence the International Normalized Ratio of Patients Taking Warfarin? A Retrospective Study

Table 3

Adverse events ratio between the herbal and nonherbal groups.

	Herbal group ( = 45)	Nonherbal group ( = 41)	value
Patient number (%)	3 (6.7)	2 (4.9)	0.723

Data are expressed as number or mean ± standard deviation; < 0.05 was considered significant. Statistical analysis by Pearson’s Chi-square test.