Table 1. The search strategy summary.

Items	Specification
Date of search	17 May 2022
Databases and other sources searched	PubMed, Google Scholar
Search terms used	Quality indicators, outcome indicators, textbook outcomes, textbook outcomes after surgery, textbook outcomes after hepatectomy, clinical indicators
Timeframe	1912–2022
Inclusion and exclusion criteria	Inclusion: English Language; Original articles, RCTs, Review
Selection process	Selection was conducted independently

RCT, randomized control trials.