Table Info

Classes	Infants	Detection rates (%)
Affected side
Left	126	16.70%
Right	91	12.10%
Bilateral	537	71.20%
Gender
Female	607	80.50%
Male	147	19.50%
Total	754	100.00%

Declarations

Author contributions

JH: Conceptualization, Data curation, Investigation, Writing—original draft. TC: Validation, Writing—review & editing, Supervision. XL: Conceptualization, Writing—review & editing. All authors read and approved the submitted version.

Conflicts of interest

The authors declare that they have no conflicts of interest.

Ethical approval

This study was approved by the institutional review board (IRB) of Beijing Jishuitan Hospital (code: 201805-09), (code: 202004-87), and (code: 202104-29) complies with the “Declaration of Helsinki”, “International Ethical Guidelines for Human Biomedical Research”, and “Designers’ Biomedical Research Ethical Review Measures”.

Consent to participate

The requirement of informed consent has been waived by IRB as this study was a retrospective study.

Consent to publication

Not applicable.

Availability of data and materials

Corresponding authors can be contacted for relevant study data.

Funding

We thank the Beijing Jishuitan Hospital Research Fund-Medical Industry Enterprise Cross-cultivation Project [YGQ-202303]; Beijing Hospitals Authority Clinical Medicine Development of special funding [YGLX202319] support, for providing special funding support in the study design; in the collection, analysis, and interpretation of the data; in the writing of the report; and in the decision to submit the paper for publication.

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