Prevalence and variation of Chronic Kidney Disease in the Irish health system: initial findings from the National Kidney Disease Surveillance Programme

Table 3 Prevalence of detectable CKD (95% confidence intervals) by category in the Irish population ¹

	CKD-EPI equation²	95% CI	MDRD equation³	95% CI
Overall Prevalence (%)	4.5	(4.46-4.59)	5.2	(5.09-5.23)
By Stage (%)
Stage3	4.10	(4.04-4.16)	4.78	(4.71-4.84)
Stage 4	0.37	(0.35-0.38)	0.32	(0.31-0.34)
Stage 5 (No Dialysis)	0.06	(0.05-0.062)	0.05	(0.044-0.055)
Stage 5 (Dialysis only)	0.03	(0.025-0.035)	0.03	(0.025-0.035)
By Age group (years) (%)
18-39	0.09	(0.08,0.10)	0.18	(0.17,0.20)
40-59	0.88	(0.83,0.92)	1.79	(1.73,1.86)
60-80	13.0	(12.8,13.2)	15.10	(14.85,15.36)
> 80	48.9	(48.2,49.6)^*	46.09	(45.39-46.79)^*
By Gender (%)
Women	5.1	(5.02-5.22)	6.1	(5.98-6.19)
Men	3.9	(3.83-4.00^)*	4.2	(4.10-4.28)^*

¹Population estimates were determined for 2006 and 2011 using the Irish Population census, restricted to individuals age ≥18 years of age.
²eGFR CKD-EPI: Glomerular filtration rate (ml/min per 1.73 m²) was based on the Chronic Kidney Disease Collaborative [21].
³eGFR: Glomerular filtration rate (ml/min per 1.73 m²) was based on the Modification of Diet in Renal Disease Study Equation (MDRD) Equation [20].
^*P < 0.001 for differences in percentages between groups.

ISSN: 1471-2369