Table 2.
N-protein seroprevalence and associated variables
| Cohort |
Community-based |
Healthcare workers |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| Sample tested, n | S-ELISA positive,n | Crude seroprevalence %,95%CI | Weighted1seroprevalence %, 95%CI | OR | Sample tested, n | S-ELISA positive,n | Crude seroprevalence %,95%CI | OR | |
| Total | 1061 | 19 | 1·8 (1.1-2.8) | 2·1 (1.1-3.9) | 282 | 4 | 1·4 (0.5-3.7) | ||
| Age | |||||||||
| ≤ 18 years | 95 | 0 | 0 | - | - | ||||
| 19-40 years | 382 | 6 | 1·6 (0·7-3·4) | 1·9 (0·7-4·7) | - | 181 | 3 | 1·7 (0·5-5·0) | NA |
| 41-60 years | 435 | 8 | 1·8 (0·9-3·6) | 1·5 (0·7-3·4) | 1·5 (0·5-4·3)x | 101 | 1 | 1·0 (0·1-6·8) | |
| > 60 years | 149 | 5 | 3·4 (1·4-7·8) | 4·5 (1·8-10·8) | 2·7 (0·8-9·1)x | 0 | 0 | ||
| Sex | |||||||||
| Female | 601 | 10 | 1·7 (0·9-3·0) | 1·5 (0·7-3·3) | - | 209 | 4 | 1·9 (0·7-5·0) | NA |
| Male | 460 | 9 | 2·0 (1·0-3·7) | 2·6 (1·2-5·9) | 1·2 (0·5-2·9) | 73 | 0 | ||
| Travel history | |||||||||
| Yes | 32 | 0 | - | - | NA | 17 | 1 | 5·9 (0·8-33·6) | - |
| No | 1029 | 19 | 1·8 (1·1-2·8) | 2·2 (1·2-4·0) | 265 | 3 | 1·1 (0·4-2·5) | 0·2 (0·02-1·9) | |
| Province | |||||||||
| Vientiane Capital | 318 | 3 | 1·0 (0·3-2·9) | 1·3 (0·3-5·6) | - | 176 | 2 | 1·1 (0·3-4·5) | NA |
| Luangprabang | 196 | 4 | 2·0 (0·7-5·2) | 2·4 (0·6-8·7) | 2·1 (0·5-9·7) | 23 | 1 | 4·3 (0·6-26·2) | |
| Oudomxay | 170 | 4 | 2·3 (0·9-6·0) | 1·9 (0·6-6·0) | 2·5 (0·5-11·2) | 12 | 0 | ||
| Savanakhet | 181 | 4 | 2·2 (0·8-5·6) | 2·7 (0·8-8·8) | 2·3 (0·5-10·5) | 31 | 0 | ||
| Champassak | 180 | 4 | 2·2 (0·8-5·6) | 3·0 (1·0-8·8) | 2·3 (0·5-10·5) | 40 | 1 | 2·5 (0·3-16·2) | |
| Vientiane Province | - | - | |||||||
1
Weighted by age, sex and complex sample design
x
OR was calculated after creating new age-groups (≤ 40; 41-60; >60)