Table 3.

Univariate analysis of postextraction bleeding events by potential risk factors in patients receiving antithrombotic agents.

Factors		Patients receiving antithrombotic agents			χ2	p-value
		Bleeding	No bleeding	Incidence
Sex	Male	10	31	24.4%	0.240	0.624
	Female	17	42	28.8%
Age	>75 years	15	23	39.5%	4.838	0.028∗
	≤75 years	12	50	19.4%
BMI	>24	14	39	26.4%	0.020	0.889
	≤24	13	34	27.7%
Agents	Anticoagulant	10	19	34.8%	1.160	0.281
	Antiplatelet	17	54	23.9%
Pre-operative	Yes	9	14	39.1%	2.230	0.135
antibiotics use	No	18	59	23.4%
Oral hygiene	Periodontitis	18	32	36.0%	4.110	0.043∗
	Non-periodontitis	9	41	18.0%
Anesthesia	Block	12	17	41.4%	4.285	0.038∗
	Infiltration	15	56	21.1%
Number	≥4	7	5	58.3%	4.758	0.029∗
	<4	20	68	22.7%
Surgical extraction	Yes	6	14	30.0%	0.114	0.735
	No	21	59	26.3%
Granulation	Yes	11	26	29.3%	0.222	0.637
	No	16	47	25.4%
Duration	>10 min	7	16	30.4%	0.179	0.672
	≤10 min	20	57	26.0%
Smoking history	Yes	0	5	–	0.772	0.380
	No	27	68	28.4%
Diabetes	Yes	8	14	36.4%	1.255	0.263
	No	19	59	24.3%
Hypertension	Yes	16	39	29.1%	0.271	0.603
	No	11	34	24.4%

BMI: body mass index;∗Chi-square test, p < 0.05.