Table 1.

Characteristics of the extracted teeth in patients with and without self-reported diabetes mellitus.

Variable	Self-Reported Diabetes Mellitus
	Yes (N = 455)		No (N = 4170)		p-Value a
	N	%	n	%
Sex					<0.001
Male	262	57.6	2001	48.0
Female	193	42.4	2169	52.0
Age (years)					<0.001
40–49	11	2.4	417	10.0
50–59	42	9.2	728	17.5
60–69	145	31.9	1188	28.5
70–79	173	38.0	1148	27.5
≥80	84	18.5	689	16.5
Location					0.071
Rural	388	85.3	3411	81.8
Urban	67	14.7	759	18.2
Number of teeth before extraction					<0.001
<20	273	60.0	1994	47.8
≥20	182	40.0	2176	52.2
Smoking status					>0.999
Current smoker	92	20.2	842	20.2
Nonsmoker	363	79.8	3328	79.8
Tooth type					<0.001
Anterior	187	41.1	1349	32.4
Premolar	134	29.5	1149	27.6
Molar	134	29.5	1672	40.1
Reason for tooth extraction					0.002
Dental caries	98	21.5	1026	24.6
Periodontal disease	252	55.4	1947	46.7
Others	105	23.1	1197	28.8

^a p-values were calculated using chi-squared tests.