Table 1.
Characteristics and Completeness of Reporting of VNRS, Stratified by Age, Sex, Ward Address, and Week of Report, Thai Nguyen, February to June 2022.
| No. of records in school system (N = 1131) | No. of records in VNRS a (N = 88) | Completeness of reporting of VNRS (%) [95% CI] |
P-value* | |
|---|---|---|---|---|
| All cases | 1131 | 88 | 7.8 [7.5, 8.1] | |
| Age, Median (IQR) | 12 (12;14) | 12 (11;14) | ||
| Age (Years) | 0.31 | |||
| 14 | 315 (28%) | 26 (30%) | 8.3 [7.6, 8.9] | |
| 13 | 240 (21%) | 18 (20%) | 7.5 [6.8, 8.2] | |
| 12 | 307 (27%) | 16 (18%) | 5.2 [4.7, 5.7] | |
| 11 | 269 (24%) | 28 (32%) | 10.4 [9.5, 11.4] | |
| Sex | 0.32 | |||
| Male | 512 (45%) | 35 (40%) | 8.6 [8.1, 9.0] | |
| Female | 619 (55%) | 53 (60%) | 6.8 [6.5, 7.2] | |
| Area of residence | 0.72 | |||
| School ward (Phan Dinh Phung) | 880 (78%) | 67 (76%) | 7.6 [6.6, 8.6] | |
| Non-school ward | 251 (22%) | 21 (24%) | 8.4 [7.8, 9.0] |
*
P-value calculated by Chi-square test.
a
Matched cases in both system, considered as COVID-19 cases reported in National reporting system.