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Table 2 Details of study quality evaluation via the Newcastle–Ottawa Scale

From: Association between metabolic syndrome and prognosis of breast cancer: a meta-analysis of follow-up studies

Study Representativeness of the exposed cohort Selection of the non-exposed cohort Ascertainment of exposure Outcome not present at baseline Control for age Control for other confounding factors Assessment of outcome Enough long follow-up duration Adequacy of follow-up of cohorts Total
Pasanisi [15] 0 1 1 1 1 1 0 1 1 7
Oh [19] 1 1 1 1 1 1 1 1 1 9
Calip [17] 0 1 1 1 1 1 1 1 1 8
Berrino [16] 1 1 1 1 1 1 1 0 1 8
Fan [20] 1 1 1 1 1 1 1 1 0 8
Muniz [21] 0 1 1 1 1 0 1 1 1 7
Simon [18] 1 1 1 1 1 1 1 1 0 8
Grybach [22] 0 1 1 1 1 1 1 1 0 7
Tong [23] 0 1 1 1 1 1 1 0 1 7