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.
Relationship between gestational age and hepatitis B virus transmission
| HBsAg | Gestational age | Total | ||
|---|---|---|---|---|
| |
1sttrimester |
2ndtrimester |
3rdtrimester |
|
| Positive |
1 |
11 |
21 |
33 |
| |
(20%) |
(14.9%) |
(17.4%) |
(16.5%) |
| Negative |
4 |
63 |
100 |
167 |
| |
(80%) |
(85.1%) |
(82.6%) |
(83.5%) |
| Total | 5 | 74 | 121 | 200 |
X2 = 0.2525 P-value = 0.881 df = 2.
