Estimating the total prevalence and incidence of end-stage kidney disease among Aboriginal and non-Aboriginal populations in the Northern Territory of Australia, using multiple data sources

Table 3 Incidence of end-stage kidney disease by age group, sex and Aboriginal status, Northern Territory, 2013

Age groups	Actual cases in datasets	Estimated undiagnosed cases ^a	Under estimation (%)	Incidence ^b (per 1000)	95% CI ^b	Incidence ^b (per 1000) without estimated undiagnosed cases	95% CI ^b
NT Aboriginal
Male
< 35	4	3	42.9	0.28	0.07–0.50	0.16	0.00–0.32
35–64	55	16	22.5	7.05	5.41–8.68	5.46	4.02–6.90
> 64	13	5	27.8	16.79	9.10–24.48	12.13	5.57–18.68
Aboriginal males	72	24	25.0	4.95	3.77–6.14	3.70	2.68–4.72
Female
< 35	6	3	33.3	0.38	0.13–0.63	0.26	0.05–0.46
35–64	64	20	23.8	7.96	6.27–9.66	6.07	4.59–7.55
> 64	19	6	24.0	18.23	11.15–25.32	13.86	7.67–20.05
Aboriginal females	89	29	24.6	5.54	4.40–6.68	4.20	3.20–5.19
Aboriginal	161	53	24.8	5.26	4.44–6.08	3.96	3.25–4.67
NT non-Aboriginal
Male
< 35	1	1	50.0	0.04	−0.02-0.10	0.02	−0.02-0.06
35–64	5	2	28.6	0.18	0.05–0.32	0.13	0.02–0.25
> 64	11	3	21.4	1.98	0.94–3.01	1.55	0.64–2.47
Non-Aboriginal males	17	6	26.1	0.34	0.19–0.49	0.26	0.13–0.38
Female
< 35	3	1	25.0	0.11	0.01–0.21	0.07	−0.01-0.16
35–64	5	2	28.6	0.22	0.06–0.38	0.15	0.02–0.28
> 64	8	3	27.3	1.99	0.81–3.17	1.46	0.45–2.47
Non-Aboriginal females	16	6	27.3	0.39	0.22–0.56	0.28	0.13–0.42
Non-Aboriginal	33	12	26.7	0.36	0.25–0.47	0.27	0.17–0.36
Total	194	65	25.1	1.35	1.18–1.53	1.02	0.86–1.17

^a Capture-recapture model with 4 data sources for Aboriginal patients and 3 data sources for non-Aboriginal patients. ^b Age adjusted to 2001 Australian population

ISSN: 1471-2369