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Table 3 Quality assessment of included studies with the Newcastle–Ottawa scale

From: Arterial duct stent versus surgical shunt for patients with duct-dependent pulmonary circulation: a meta-analysis

Study Representativeness of the exposed cohort Non-exposed cohort drawn from the same community Ascertainment of exposure Outcome of interest not present at start Comparability of cohorts on the basis of design and analysis Quality of outcome assessment Follow-up long enough for outcomes to occur Complete accounting for cohorts Total score
Santoro [16] * * * * * * * 7
Amoozgar [17] * * * * * * * 7
McMullan [18] * * * * * * * 7
Mallula [19] * * * * * * * * 8
Glatz [20] * * * * ** * 7
Bentham [21] * * * * ** * * * 9