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.
Progression to the next state of severity. Estimates and 95% confidence intervals for baseline rates (female, 0 damaged joints) per day and hazard ratios under five different state structures. Each interval is aligned horizontally with the corresponding transition in the model structure on the right with the same colour and line type
