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Table 1 Quality of studies of asymptomatic subjects

From: Validity of electron beam computed tomography for coronary artery disease: asystematic review and meta-analysis

Item

Value

Wong et al. [6]

Arad et al. [11]

Raggi et al. [7]

Kondos et al. [8]

Shaw et al. [9]

Greenland et al. [10]

Taylor et al. [12]

Vliegenthart et al. [13]

LaMonte et al. [14]

Patient recruitment

1: Self referred

2

NR

2

1

2

1

3

3

2

 

2: Clinician referred

         
 

3: Population sample

         

Exclusion criteria

1: Did not exclude history of heart disease

2

2

NR

2

2

2

2

2

2

 

2: Excluded history of heart disease

         

Outcome defined

1: All cause mortality

2

2

3

3

1

3

3

2

2

 

2: Coronary outcomes* and revascularization

         
 

3: Coronary outcomes* only

         

EBCT categories

1: Quartiles or pre-selected cut-offs

1

1

2

1

1

1

1

1

1

 

2: Age – sex adjusted

         

Outcome extraction blinded to EBCT score

1: No

2

2

2

2

2

2

2

2

2

 

2: Yes

         

Demographic characteristics, risk factors

NR: Not reported

1

1

1

1

1

1

1

1

1

 

1: Reported (see Table 3)

         

Percentage follow-up

NR: Not reported

NR

1

1

1

1

1

1

1

1

 

1: Yes (see Table 4)

         

Adjusted results available

1: Yes but cannot be used in meta-analysis

1

1

3

2

3

3

2

3

3

 

2: Yes at single cut-off and can be used in meta-analysis.

         
 

3: Yes at multiple cut-offs and can be used in meta-analysis

         

Total

Maximum: 17

11

11

14

13

13

14

15

15

14

  1. *Coronary outcomes: angina, myocardial infarction, coronary death.