Predictive Value of Post-Percutaneous Coronary Intervention Quantitative Flow Ratio for Vessel-Oriented Composite Endpoint

Table 2

Quality evaluation of included studies (the Newcastle–Ottawa scale, NOS).

Studies	Representativeness of the exposed cohort	Selection of the nonexposed cohort	Ascertainment of exposure	Outcomes of interest was not present at start of study	Comparability of cohorts on the basis of the design or analysis	Assessment of outcomes	Follow-up duration was sufficient for outcomes to occur	Adequacy of follow-up of cohorts	Total
Biscaglia et al. [1]	1	1	1	1	2	1	1	1	9
Kogame [12]	1	1	1	1	2	1	1	1	9
Tang et al. [13]	1	1	1	1	2	1	1	0	8
Tang [14]	1	1	1	1	2	0	0	0	6
Liu and Ding [15]	1	1	1	1	2	1	0	1	8
Zhang [16]	1	1	1	1	2	1	1	0	8

The full score is nine.