Prediction of individual mortality risk among patients with chronic obstructive pulmonary disease: a convenient, online, individualized, predictive mortality risk tool based on a retrospective cohort study

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Main article text

 

Introduction

Method

Patients

Information collection

Model building

Statistical analysis

Results

Baseline characteristics

Variable selection

Prognostic predictive model

Performance in the model cohort

Performance in the validation cohort

Online predictive tool

Discussion

Supplemental Information

Codebook to convert numbers to their respective factors

DOI: 10.7717/peerj.14457/supp-1

Additional Information and Declarations

Competing Interests

The authors declare there are no competing interests.

Author Contributions

Shubiao Lu conceived and designed the experiments, performed the experiments, analyzed the data, prepared figures and/or tables, authored or reviewed drafts of the article, and approved the final draft.

Yuwen Zhou performed the experiments, analyzed the data, prepared figures and/or tables, authored or reviewed drafts of the article, and approved the final draft.

Xuejuan Huang performed the experiments, analyzed the data, prepared figures and/or tables, authored or reviewed drafts of the article, and approved the final draft.

Jinsong Lin conceived and designed the experiments, performed the experiments, analyzed the data, prepared figures and/or tables, authored or reviewed drafts of the article, and approved the final draft.

Yingyu Wu performed the experiments, analyzed the data, prepared figures and/or tables, authored or reviewed drafts of the article, and approved the final draft.

Zhiqiao Zhang conceived and designed the experiments, performed the experiments, analyzed the data, prepared figures and/or tables, authored or reviewed drafts of the article, and approved the final draft.

Human Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

This study was reviewed and approved by the Ethics Committee of The Affiliated Chencun Hospital of Shunde Hospital, Southern Medical University (ID: 202202001). Due to the retrospective nature of the study and the use of anonymized data, requirements for informed consent were waived by the Ethics Committee of The Affiliated Chencun Hospital of Shunde Hospital, Southern Medical University (ID: 202202001).

Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

This article has been reviewed and approved by the Ethics Committee of The Affiliated Chencun Hospital of Shunde Hospital, Southern Medical University (ID:202202001). The informed consents were waved by the Ethics Committee of The Affiliated Chencun Hospital of Shunde Hospital, Southern Medical University because the current study is a retrospective cohort study and all individual information was anonymous from study datasets (ID: 202202001). The current study was conducted in accordance with the Declaration of Helsinki, relevant guidelines, and local regulations.

Data Availability

The following information was supplied regarding data availability:

The raw data is available in the Supplemental Files.

Funding

The current research is a project supported by the Foshan Science and Technology Bureau (2020001005121). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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