Table 2.
Characteristics of participants found positive for anti-A(H5) antibodies, Cambodia, 2006−2010
| 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