|
Year of investigation
|
All n (%)
|
2006 n (%)
|
2007 n (%)
|
2009 n (%)
|
2010 n (%)
|
p value
|
|---|
|
Participants
|
2,364
|
674
|
700
|
624
|
366
| |
|
Positive for anti-A(H5)
|
35 (1.5)
|
7 (1.0)
|
18 (2.6)
|
10 (1.6)
|
0
| |
|
Positive participants
|
|
Gender - male
|
19 (54.3)
|
6 (85.7)
|
8 (44.4)
|
5 (50.0)
|
-
|
0.179
|
|
Age (years)
|
|
Median (min. - max.)
|
16 (3-77)
|
12 (4-18)
|
14.5 (3-77)
|
26.5 (5-70)
|
-
|
0.239
|
|
Means
|
24.2
|
11.4
|
25.7
|
30.6
|
-
| |
|
Age group
|
|
0−4 years
|
4 (11.4)
|
2 (28.6)
|
2 (11.1)
|
0
|
-
|
0.245
|
|
5−19 years
|
17 (48.6)
|
5 (71.4)
|
9 (50.0)
|
3 (30.0)
|
-
| |
|
20−39 years
|
6 (17.1)
|
0
|
2 (11.1)
|
4 (40.0)
|
-
| |
|
40−59 years
|
3 (8.6)
|
0
|
2 (11.1)
|
1 (10.0)
|
-
| |
|
>59 years
|
5 (14.3)
|
0
|
3 (16.7)
|
2 (20.0)
|
-
| |
|
Age under 20
|
21 (60.0)
|
7 (100)
|
11 (61.1)
|
3 (30.0)
|
-
|
0.015
|
|
Occupation
|
|
Farmer
|
15 (42.9)
|
1 (14.3)
|
7 (38.9)
|
7 (70.0)
|
-
|
0.123
|
|
Worker - rubber plantation
|
1 (2.9)
|
0
|
1 (5.6)
|
0
|
-
| |
|
Student or child
|
19 (54.3)
|
6 (85.7)
|
10 (55.6)
|
3 (30.0)
|
-
| |
- Participants of 2008 survey were excluded from the analysis (Kandal province, n = 394, military, mainly male aged 18 − 35 years old). None of them tested positive for anti-A(H5) antibodies
