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Table 3 Prevalence of diabetes among adults in included studies, 1998-2011

From: Epidemiology of diabetes and complications among adults in the Republic of Ireland 1998-2015: a systematic review and meta-analysis

Study Year of data collection Response rate (%) Sample size Age Diabetes type Diagnostic criteria Estimate Prevalence % (95 % CI)
  Males Females Total
Sheily and Kelleher [22] 1998 62 1632 ≥ 55 years All SRa Diagnosed 6.1 4.3 5.4
Creagh et al. [23] 1998 69.1 1018 50–69 years 2 FPGb Diagnosed
Undiagnosed
Total
Total ≥65 years
-
-
-
13
-
-
-
7
2.8
1.2
3.9 (2.9–5.4)
-
CSO [27] July- Sept. 2001 - 3917203 ≥ 18 years All SR Diagnosed
≥18 years
≥65 years
-
1.7
-
1.4
1.5
4.5
Sheily and Kelleher [22] 2002 53 1745 ≥ 55 years All SR Diagnosed 8.0 5.1 6.4
Balanda et al. [11] 2007 62 10,364 ≥ 18 years All SR or medication use or HbA1cc Diagnosed
18–44 years
45+ years
Total ≥ 18 years
Undiagnosed (≥ 45 years)
Total (diagnosed & undiagnosed ≥ 45 years)
-
6.8 (5.7–7.9)
-
4.0 (1.6–6.3)
10.8 (8.2–13.4)
-
5.4 (4.3–6.6)
-
1.7 (0.3–3.0)
7.1 (5.3–8.9)
0.7 (0.5–0.9)
6.1 (5.5–6.9)
3.5 (3.1–3.9)
2.8 (1.4–4.1)
8.9 (7.3–10.5)
Gallagher et al. [24] 2009
2010
- 3493974
3490877
≥ 18 years 2 At least 1 prescription of diabetes medication Diagnosed
2009
2010
-
-
-
-
2.8
3.1
Leahy et al. [25] 2009–2011 62 5377 ≥ 50 years 2 SR or medication use or HbA1cc Diagnosed
Undiagnosed
Total (diagnosed & undiagnosed)
50–59 years
60–69 years
70–79 years
80+ years
-
-
11.8 (10.3–13.3)*
5.1 (4.0–7.0)
6.0 (5.0–8.0)
12.0 (8.0–14.0)
10.0 (5.0–15.0)
-
-
7.3 (6.0–8.5)*
4.0
14.0 (11.0–16.0)
17.0 (14.0–21.0)
25.0 (15.0–36.0)
8.6 (7.6–9.5)
0.9 (0.6–1.1)
9.5 (8.5–10.4)
5.0 (4.0–6.0)
-
-
16.0 (10.7–21.4)
OConnor et al. [26] 2010-2011 67.9 2047 50–69 years 2 SR or medication use or HbA1cc Diagnosed
Undiagnosed
Total
6.8*
7.1*
11.1*
3.1*
2.7*
6.0*
5.0 (4.1–6.0)
3.5 (2.8–4.4)
8.5 (7.4–8.8)
  1. *p for difference < 0.05
  2. a SR self-reported data; bFasting plasma glucose (American Diabetes Association criteria (ADA, 1997); cHbA1c (ADA, 2010)