Table 1.
Demographic characteristics of UK CA proxy-logged as part of the COVID Symptom Study between August 5, 2021 and February 14, 2022.
| Vaccinated CA (first dose BNT162b2) |
Unvaccinated CA |
|||
|---|---|---|---|---|
| Children (aged 12-15 years) | Adolescents (aged 16-17 years) | Children (aged 12-15 years) | Adolescents (aged 16-17 years) | |
| Number of CA proxy-reported within relevant time frames* | 16,373 | 9598 | 51,511 | 23,594 |
| Number of CA tested for SARS-CoV-2 (n) | 11,691 | 6677 | 16,401 | 6,240 |
| #Positive test result (n (%)) | 4784 (40·9) | 2250 (33·7) | 5261 (32.1) | 1340 (21·5) |
| #Age (mean (SD)) | 13.58 (1·09) | 16.46 (0·50) | 13·54 (1·11) | 16·43 (0·50) |
| #BMI (mean (SD)) | 19·66 (3·67) | 20.80 (3·86) | 19·75 (3·76) | 20·72 (3·82) |
| #Male (n (%)) | 6105 (52·2) | 3508 (52·5) | 8615 (52·5) | 3310 (53·0) |
| #CA with at least one comorbidity (n (%)) | 644 (5·5) | 362 (5·4) | 917 (5·6) | 340 (5·4) |
⁎
Time frames: For adolescents aged 16-17 years, data were considered between August 5, 2021 and February 14, 2022. For children aged 12-15 years, data were considered between September 18, 2021 and February 14, 2022.
#
These figures were calculated for those CA with least one SARS-CoV-2 test.
BMI, body mass index. SD, standard deviation.