Volume 30, Number 9—September 2024
Research
Infection Rates and Symptomatic Proportion of SARS-CoV-2 and Influenza in Pediatric Population, China, 2023
Chao Shi1, Yuhe Zhang1, Sheng Ye1, Jiyang Zhou, Fuyu Zhu, Yumeng Gao, Yan Wang, Bingbing Cong, Shuyu Deng, You Li, Bing Lu
, and Xin Wang
, and Xin Wang
Table 2
Proportion of symptomatic SARS-CoV-2 and influenza infections, factors of symptomatic infections, and frequency of symptoms in study of infection rates, symptomatic proportion, and age-dependent risk profiles of SARS-CoV-2 and influenza in pediatric population, China, 2023*
| Characteristic | SARS-CoV-2 |
Influenza |
|||
|---|---|---|---|---|---|
| Symptomatic episodes, n = 47 | Univariate OR (95% CI) | Symptomatic episodes, n = 39 | Univariate OR† (95% CI) | ||
| Overall |
19/47 (40.4%) |
NA |
13/39 (33.3%) |
NA |
|
| Age group, y | |||||
| 4–6 | 4/7 (57.1%) | Referent | 11/34 (32.4%) | Referent | |
| 7–15 | 13/24 (54.2%) | 0.9 (0.1–4.9) | 2/3 (66.7%) | 1.8 (0.4–9.6) | |
| 16–18 |
2/16 (12.5%) |
0.1 (0.0–0.8) |
0/2 (0.0%) |
NE |
|
| Received >2 doses of COVID-19 vaccine |
39/47 (83.0%) |
0.3 (0.1–1.6) |
NA |
NA |
|
| Symptom | |||||
| Fever | 2/19 (10.5%) | NA | 6/13 (46.2%) | NA | |
| Cough | 13/19 (68.4%) | NA | 7/13 (53.8%) | NA | |
| Sore throat | 3/19 (15.8%) | NA | 0/13 (0.0%) | NA | |
| Congested nose | 7/19 (36.8%) | NA | 1/13 (7.7%) | NA | |
| Runny nose | 9/19 (47.4%) | NA | 6/13 (46.2%) | NA | |
| Fatigue | 1/19 (5.3%) | NA | 0/13 (0.0%) | NA | |
| Vomiting | 1/19 (5.3%) | NA | 0/13 (0.0%) | NA | |
| Sneezing | 0/19 (0.0%) | NA | 0/13 (0.0%) | NA | |
| Medical attendance | 0/19 (0.0%) | NA | 3/13 (23.1%) | NA | |
*NA, not applicable; NE, not estimated; OR, odds ratio (estimated using logistic regression model). †Influenza vaccination coverage was <5% and thus not included in the analysis for influenza.
1These authors contributed equally to this article.
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