Cardiac implications of hypoglycaemia in patients with diabetes – a systematic review

Table 1 Criteria of high, moderate and low study quality

Study quality	Criteria
High: small risk of bias	Prospective study design and the following:
	- Adequately described patients constituting a representative and clinically relevant sample
	- Sample size ≥ 5000
Moderate: moderate risk of bias	Prospective study design
Low: high risk of selection and/or verification bias	Retrospective study design
Low: high risk of selection and/or verification bias	Selected or enriched samples

ISSN: 1475-2840