Table 2.
Number of participants for PND and no PND groups across four time points
| Groups | T1 | T2 | T3 | T4 |
|---|---|---|---|---|
| PND (max N = 51) | 47 (92%) | 34 (67%) | 30 (59%) | 29 (57%) |
| No PND (max N = 247) | 233 (94%) | 168 (68%) | 157 (64%) | 144 (58%) |
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.