Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Assignment tables.
| Factor | Assignment |
|---|---|
| Age | 1=≥50 year, 0=<50 year |
| Classification of fracture | 1=open tibial fracture, 0=closed tibial fracture |
| Fixed type | 1=plate internal fixation, 0=external fixator fixation |
| Needle loosening | 1=yes, 0=no |
| Retention time | Analysis of continuous variables using raw data |
| Needle infection(Y) | 1=infect, 0=non-infection |
