Table 3.
S-protein seroprevalence and associated variables
| Cohort |
Community-based |
Healthcare workers |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| Sample size, n | N-ELISA positive, n | Crude seroprevalence%,95%CI | Weighted1seroprevalence %, 95%CI | OR | Sample size, n | N-ELISA positive, n | Crude seroprevalence%,95%CI | OR | |
| Total | 2433 | 131 | 5·4 (4·5-6·3) | 5·2 (4·2-6·5) | 666 | 13 | 1·9 (1·1-3·3) | ||
| Age | |||||||||
| ≤ 18 years | 233 | 9 | 3·9 (2·0-7·3) | 4·2 (2·0-8·4) | - | - | |||
| 19-40 years | 849 | 31 | 3·6 (2·6-5·1) | 3·6 (2·4-5·4) | 0·9 (0·4-2·0)* | 448 | 10 | 2·2 (1·2-4·1) | NA |
| 41-60 years | 1 | 60 | 6·0 (4·7-7·6) | 6·6 (5·0-8·6) | 1·6 (0·8-3·2)* | 217 | 3 | 1·4 (0·4-4·2) | |
| > 60 years | 351 | 31 | 8·8 (6·2-12·3) | 9·3 (6·4-13·4) | 2·4 (1·1-5·2)* | 1 | 0 | - | |
| Sex | |||||||||
| Female | 1414 | 69 | 4·9 (3·9-6·1) | 4·6 (3·4-6·2) | - | 518 | 8 | 1·5 (0·8-3·1) | 2·2(0·7-6·9) |
| Male | 1019 | 62 | 6·1 (4·8-7·3) | 5·8 (4·2-7·9) | 1·2 (0·9-1·8) | 148 | 5 | 3·4 (1·4-7·9) | |
| Travel history | |||||||||
| No | 2332 | 128 | 5·4 (4·6-6·4) | 5·5 (4·4-6·9) | - | 624 | 13 | 2·1 (1·2-3·6) | NA |
| Yes | 101 | 3 | 3·0 (0·9-8·8) | 1·2 (0·3-4·2) | 0·5 (0·2-1·7) | 42 | 0 | - | |
| Province | |||||||||
| Vientiane Capital | 746 | 36 | 4·8 (3·5-6·6) | 4·9 (3·3-7·2) | - | 410 | 10 | 2·4 (1·3-4·5) | NA |
| Luangprabang | 465 | 25 | 5·4 (3·6-7·8) | 6·2 (3·7-10·2) | 1·1 (0·6-1·9) | 47 | 0 | - | |
| Oudomxay | 396 | 21 | 5·3 (3·5-8·0) | 5·5 (3·2-9·2) | 1·1 (0·6-1·9) | 31 | 0 | - | |
| Savanakhet | 412 | 27 | 6·6 (4·5-9·3) | 5·7 (3·4-9·4) | 1·1 (0·6-1·9) | 106 | 2 | 2·8 (0·7-10·5) | |
| Champassak | 414 | 22 | 5·3 (3·5-7·9) | 4·8 (2·9-8·0) | 1·4 (0·8-2·3) | 72 | 1 | 0·9 (0·1-6·4) | |
| Vientiane Province | - | - | - | - | |||||
1
weighted by age, sex and complex survey design
⁎
p>0.0001 score test for trend of odds