Table 1.

Characteristics of studies reporting the prevalence of diabetes or related complications among adults in the Republic of Ireland, 1998–2011

Author	Year of data collection	Study design	National or regional	Setting	Population	Sampling frame	Sampling method	Sample size	Males (%)	Age (years)	Study quality (out of 9)
Diabetes prevalence
Sheily and Kelleher [22]	1998	Cross-sectional	National	Household	General population	Electoral register	Multistage sample	1632	47.7	≥55	7
Creagh et al. [23]	1998	Cross-sectional	Regional	17 GP practices	Primary Care Patients	Practice list	Stratified random	1018	48.2	50–69	6
Census Statistic Office (CSO) [27]	2001	Survey	National	Household	General population	Census	Total sample	3917203	-	≥18	5
Sheily and Kelleher [22]	2002	Cross-sectional	National	Household	General population	Electoral register	Multistage sample	1745	41.7	≥ 55	7
Balanda et al. [11]	2007	Cross-sectional	National	Household	General population	Geodirectory	Multistage probability	10,364	49.5	≥18	8
Gallagher et al. [24]	2009-2010	Cross-sectional	National	Database	Patients covered by GMS, LTI, DPS schemes	HSE-PCRS pharmacy claims data base	Total sample 2009 2010	3493974 3490877	-	≥16	6
Leahy et al. [25]	2009-2011	Cross-sectional analysis of longitudinal study	National	Household & designated health centre	General population	Geodirectory	Multi-stage probability	5377	46.5	≥50	8
OConnor et al. [26]	2010-2011	Cross-sectional	Regional	Primary care centre	Patients	Practice list	Random	2047	49.2	50–69	8