Table 2.

Quality assessment of included studies in the systematic review and meta-analysis on the epidemiology of injuries in athletes of the Olympic Winter Games

Author	Host year	1	2	3	4	5	6	7	8	9	10	11
Peng-da Han et al	2022	Yes	Unclear	Yes	Yes	Unclear	Yes	Unclear	Yes	Unclear	Yes	Unclear
Soligard et al	2018	Yes	Unclear	Yes	Yes	Unclear	Yes	Unclear	Yes	Unclear	Yes	Unclear
Soligard et al	2014	Yes	Unclear	Yes	Yes	Unclear	Yes	Unclear	Yes	Unclear	Yes	Unclear
Engebretsen et al	2010	Yes	Unclear	Yes	Yes	Unclear	Yes	Unclear	Yes	Unclear	Yes	Unclear

Define the source of information (survey, record review); (2) List inclusion and exclusion criteria for exposed and unexposed subjects (cases and controls) or refer to previous publications; (3) Indicate time period used for identifying patients; (4) Indicate whether or not subjects were consecutive if not population-based; (5) Indicate if evaluators of subjective components of study were masked to other aspects of the status of the participants; (6) Describe any assessments undertaken for quality assurance purposes (e.g., test/retest of primary outcome measurements); (7) Explain any patient exclusions from analysis; (8) Describe how confounding was assessed and/or controlled; (9) If applicable, explain how missing data were handled in the analysis; (10) Summarize patient response rates and completeness of data collection; (11) Clarify what follow-up, if any, was expected and the percentage of patients for which incomplete data or follow-up was obtained.