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.
Predicted hazard rate of progression to last menstruation based on random effects discrete-time event history analysis by ethnic-level postmarital residence, plotted for the mean group at the means of covariates (see the electronic supplementary material, table S2 for full model). Error bars represent 95% confidence intervals (CIs). (Online version in colour.)
