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

Sheily and Kelleher [22]

1998

62

1632

≥ 55 years

All

SR^a

Diagnosed

6.1

4.3

5.4

Creagh et al. [23]

1998

69.1

1018

50–69 years

2

FPG^b

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 HbA1c^c

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 HbA1c^c

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 HbA1c^c

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)