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.
Baseline characteristics of responders and nonresponders (N=763).
| Characteristics | Nonresponders (n=505), n (%) | Responders (n=258), n (%) | P valuea | |
| Female | 332 (65.7) | 190 (73.6) | .03 | |
| Age (years) |
|
|
.31 | |
|
|
<21 | 56 (11.1) | 18 (7.0) |
|
|
|
21-25 | 209 (41.4) | 117 (45.3) |
|
|
|
26-30 | 116 (23.0) | 60 (23.3) |
|
|
|
≥31 | 124 (24.6) | 63 (24.4) |
|
| Single | 309 (61.2) | 150 (58.1) | .46 | |
aPearson chi-square test with Yates continuity correction.
