Table 1 Characteristics of included studies (eight study populations; 13 articles)

Denmark

National Prescription Register, National Patient Register, Central Population Register

1997–2006

Individuals aged ≥30 years with first MI and without prior diabetes

77,147

70

61

Up to 5

Norgaard et al. 2010 [19]

Spain

Single center Coronary Care Unit Registry

1988–2008

Individuals aged ≥75 years with first STEMI

1393

81

49

1 and 5

Viana-Tejedor et al. 2015 [23]

Sweden

National Hospital Discharge Register, National Cause of Death Registry

1993–2004

Individuals admitted for first MI (no prior HF or CAD)

175,216

69

64

3

Shafazand et al. 2011 [21]

RIKS-HIA

1996–2007

Individuals with first STEMI

61,238

70

65

Up to 15

Jernberg et al. 2011 [13]

National Inpatient Register

1987–2006

Individuals with first MI aged 25–54 years

37,276

NR

81

4

Nielsen et al. 2014 [18]

Northern Sweden MONICA MI Registry, Swedish National Cause of Death Registry

1985–2006

Individuals with first MI

8630

56

78

Median: 7.1

Isaksson et al. 2011 [12]

Netherlands

Thoraxcenter ICCU, Erasmus University Medical Center

1985–2008

Individuals hospitalized for MI

With NSTEMI^a

7614

63

70

3

Nauta et al. 2011 [15]

With STEMI^a

6820

61

75

3

Nauta et al. 2011 [15]

10

Snelder et al. 2013 [22]

With renal impairment^b

8632

Up to 20

Nauta et al. 2013 [17]

With diabetes^a

2015

Up to 20

Nauta et al. 2012 [14]

With elevated blood glucose^c

4671

Up to 20

Deckers et al. 2013 [11]

Women^a

4028

Up to 20

Nauta et al. 2012 [16]

United Kingdom

CALIBER (CPRD, MINAP, HES, and ONS)

2000–2010

Individuals with stable angina, other CHD, unstable angina, STEMI, NSTEMI, or unclassified MI

102,023 (STEMI: 4700; NSTEMI: 6818; unclassified MI: 9620)

STEMI: 66; NSTEMI: 72; unclassified MI: 69

STEMI: 72; NSTEMI: 63; unclassified MI: 65

Mean: 4.4^d

Rapsomaniki et al. 2014 [20]