. 2022 Nov 25;2(1):100516. doi: 10.1016/j.jscai.2022.100516

Table 1.

The Newcastle-Ottawa Scale for quality assessment of studies comparing transcatheter mitral valve-in-valve versus redo surgical mitral valve replacement in patients with degenerated mitral prostheses.

	Selection				Comparability		Outcome
	Representativeness of the exposed cohort	Selection of nonexposed cohort	Ascertainment of exposure	Demonstration that outcome of interest was not present at the start of the study	Adjust for the most important risk factors	Adjust for other risk factors	Assessment of outcome	Follow-up length	Loss to follow-up rate	Total quality score
Simard et al,¹² 2022	∗	∗	∗	∗		∗	∗	∗	∗	8
Zubarevich et al,¹¹ 2021	∗	∗	∗	∗		∗	∗	∗	∗	8
Khan et al,⁹ 2021	∗		∗	∗		∗	∗	∗		6
Simonetto et al,⁶ 2021	∗	∗	∗	∗		∗	∗	∗	∗	8
Osman et al,¹³ 2020	∗		∗	∗		∗	∗	∗		6
Kamioka et al,¹⁰ 2018	∗	∗	∗	∗		∗	∗	∗	∗	8
Murzi et al,⁸ 2017	∗	∗	∗	∗		∗	∗	∗	∗	8