Dental general anaesthetic receipt among Australians aged 15+ years, 1998–1999 to 2004–2005

BMC Oral Health

Table 2 DGA rates, unadjusted incidence rate ratios and generalised adjusted incident rate ratios among Australians aged 15+ years; 1998–1999 to 2004–2005

Variable	Dental morbidity	Rate per 100,000	95% CI*	Unadjusted rate ratio	95% CI*	Adjusted rate ratio†	95% CI*
Total	502522	472.79	471.50–474.09
Age-group (years)
15–19	134572	1428.41	1420.78–1436.09	12.19	11.68–12.72	13.20	12.65–13.78
20–24	123453	1317.19	1309.83–1324.58	11.24	10.77–1.73	12.36	11.85–12.90
25–29	67967	662.79	657.80–667.81	5.66	5.42–5.90	6.14	5.88–6.41
30–34	44984	435.51	431.49–439.57	3.72	3.56–3.88	3.95	3.78–4.12
35–39	30145	287.79	284.54–291.06	2.46	2.35–2.57	2.58	2.47–2.69
40–44	23375	238.98	235.93–242.07	2.04	1.95–2.13	2.13	2.04–2.22
45–49	18822	195.82	193.03–198.65	1.67	1.60–1.75	1.75	1.67–1.82
50–54	16261	182.89	179.40–185.02	1.55	1.49–1.63	1.62	1.55–1.70
55–59	12585	173.32	170.31–176.38	1.48	1.41–1.55	1.54	1.47–1.61
60–64	8467	146.20	143.12–149.35	1.25	1.19–1.31	1.29	1.23–1.35
65–69	6347	238.44	234.15–242.80	2.03	1.94–2.13	2.10	2.01–2.20
70–74	5382	228.46	224.05–232.96	1.95	1.86–2.04	2.02	1.93–2.11
74–79	4783	131.91	128.21–135.71	1.13	1.07–1.18	1.17	1.11–1.23
80–84	3201	136.38	131.72–141.21	1.16	1.10–1.23	1.20	1.13–1.26
85+ (ref)	2172	117.18	112.34–122.24
Sex
Male (ref)	208178	395.17	393.49–396.86
Female	294344	549.38	547.41–551.36	1.39	1.38–1.40	1.46	1.45–1.47
Location
Metropolitan (ref)	371312	402.54	401.26–403.82
Rural/Remote	294344	960.97	955.77–966.21	2.39	2.37–2.40	2.70	2.68–2.72
Indigenous status
Indigenous (ref)	4280	210.96	204.70–217.40
Non-Indigenous	498242	477.77	476.45–479.09	2.26	2.20–2.33	4.88	4.73–5.03

*95% Confidence Intervals computed under standard large sample Poisson assumptions [13]
†Generalised Poisson regression model rate ratio estimates are adjusted for all other covariates

ISSN: 1472-6831