Table 4.

The stratified analysis of dental scaling and post-stroke adverse events by age, sex, and types of stroke (N = 99,094)

			Adverse events*
		n	Events	Rate, %	OR	(95% CI)†
Female	No DS	19,542	5521	28.3	1.00	(reference)
	DS	19,542	4089	20.9	0.65	(0.62–0.68)
Male	No DS	30,005	6564	21.9	1.00	(reference)
	DS	30,005	4345	14.5	0.57	(0.55–0.60)
Age 20–49 years	No DS	5564	1136	20.4	1.00	(reference)
	DS	5564	664	11.9	0.49	(0.44–0.55)
Age 50–59 years	No DS	9946	1894	19.0	1.00	(reference)
	DS	9946	1220	12.3	0.56	(0.52–0.61)
Age 60–69 years	No DS	13,482	2681	19.9	1.00	(reference)
	DS	13,482	1823	13.5	0.61	(0.57–0.65)
Age 70–79 years	No DS	12,936	3512	27.2	1.00	(reference)
	DS	12,936	2488	19.2	0.62	(0.59–0.66)
Age ≥ 80 years	No DS	7619	2862	37.6	1.00	(reference)
	DS	7619	2239	29.4	0.68	(0.63–0.73)
Subarachnoid hemorrhage	No DS	1693	731	43.2	1.00	(reference)
	DS	1693	595	35.1	0.71	(0.61–0.81)
ICH	No DS	6919	2907	42.0	1.00	(reference)
	DS	6919	2235	32.3	0.65	(0.61–0.70)
Other and unspecified ICH	No DS	1170	347	29.7	1.00	(reference)
	DS	1170	227	19.4	0.56	(0.46–0.68)
Occlusion of precerebral arteries	No DS	1422	350	24.6	1.00	(reference)
	DS	1422	199	14.0	0.49	(0.40–0.59)
Occlusion of cerebral arteries	No DS	29,146	6664	22.9	1.00	(reference)
	DS	29,146	4437	15.2	0.58	(0.56–0.61)
Transient cerebral ischemia	No DS	7472	836	11.2	1.00	(reference)
	DS	7472	610	8.2	0.69	(0.62–0.78)
Acute, but ill-defined CVD	No DS	608	107	17.6	1.00	(reference)
	DS	608	43	7.1	0.33	(0.22–0.49)
Other and ill-defined CVD	No DS	1117	143	12.8	1.00	(reference)
	DS	1117	88	7.9	0.56	(0.42–0.75)

CI, confidence interval; COPD, chronic obstructive pulmonary disease; CVD, cerebrovascular disease; DS, dental scaling; ICH, intracerebral hemorrhage; OR, odds ratio.

*Adverse events included with 30-day in-hospital mortality, pneumonia, septicemia, UTI.

†Adjusted for all covariates listed in Table 2.