. 2021 Feb 22;16(2):e0246625. doi: 10.1371/journal.pone.0246625

Table 2. Study variables grouped by complications.

Variables	SSI					DS					TMD
	Yes		No		p	Yes		No		p	Yes		No		p
	(n = 29)		(n = 16,580)		value	(n = 608)		(n = 16001)		value	(n = 68)		(n = 16,541)		value
	n	%	n	%		n	%	n	%		n	%	n	%
Gender
Female	19	65.52	8952	53.99	0.2134	322	52.96	8649	54.05	0.5958	45	66.18	8926	53.96	0.0437^b
Male	10	34.48	7628	46.01	0.2134	286	47.04	7352	45.95	0.5958	23	33.82	7615	46.04	0.0437^b
Age, year
16–25	15	51.72	8226	49.61	0.9453	274	45.07	7967	49.79	0.6892	32	47.06	8209	49.63	0.6892
26–35	10	34.48	5469	32.99		226	37.17	5253	32.83		21	30.88	5458	33.00
36–45	2	6.90	1710	10.31		65	10.69	1647	10.29		10	14.71	1702	10.29
46–55	2	6.90	1175	7.09		43	7.07	1134	7.09		5	7.35	1172	7.09
Complexity of odontectomy
Non-complicated	6	20.69	5413	32.65	0.1983	161	26.48	5258	32.86	0.0008^b	17	25.00	5402	32.66	0.1789
Complicated	23	79.31	11167	67.35	0.1983	447	73.52	10743	67.14	0.0008^b	51	75.00	11139	67.34	0.1789
History of abscess or cellulitis
No	28	96.55	16346	98.59	0.3387^a	595	97.86	15779	98.61	0.1239	66	97.06	16308	98.59	0.2502^a
Yes	1	3.45	234	1.41	0.3387^a	13	2.14	222	1.34	0.1239	2	2.94	233	1.41	0.2502^a
History of gingivitis or pericoronitis
No	8	27.59	4118	24.84	0.7321	125	20.57	4001	25.01	0.0128^b	17	25.00	4109	24.84	0.9759
Yes	21	72.41	12462	75.16	0.7321	483	79.43	12000	74.99	0.0128^b	51	75.00	12432	75.16	0.9759
State of oral hygiene maintenance
Good	6	20.69	4177	25.19	0.4797	145	23.85	4038	25.24	0.6884	18	26.47	4165	25.18	0.5204
Fair	14	48.28	8780	52.96		324	53.29	8470	52.93		39	57.35	8755	52.93
Poor	9	31.03	3623	21.85		139	22.86	3493	21.83		11	16.18	3621	21.89

DS, dry socket. TMD, prolonged temporomandibular joint symptoms, SSI, surgical site infection.

^a Fisher exact test

^b statistical significance.