Impact of Varicella Immunization and Public Health and Social Measures on Varicella Incidence: Insights from Surveillance Data in Shanghai, 2013–2022
Abstract
:1. Introduction
2. Materials and Methods
2.1. Study Setting
2.2. Data Sources
2.3. Statistical Analysis
3. Results
3.1. Characteristics of Varicella Cases
3.2. Coverage Rates of Varicella Vaccination among Children
3.3. Association of Two-Dose VarV Program and PHSMs with the Incidence of Varicella
4. Discussion
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Characteristics | Patients N (%) | |||
---|---|---|---|---|
All Study Periods including Transitions (January 2013–December 2022) 1 | One-Dose VarV Period (January 2013–October 2017) | Early Two-Dose VarV Period (January 2018–December 2019) | Pandemic Period (February 2020–December 2022) | |
Total number of cases | 19,593 (100) | 11,105 (56.68) | 4513 (23.03) | 2953 (15.07) |
Sex | ||||
Female | 8937 (45.61) | 5039 (45.38) | 2096 (46.44) | 1353 (45.82) |
Male | 10,656 (54.39) | 6076 (54.71) | 2417 (53.56) | 1600 (54.18) |
Age, years | ||||
Median (IQR) | 11 (5–24) | 9 (5–22) | 12 (7–26) | 18 (8–29) |
Age Group | ||||
0–4 years | 3594 (18.34) | 2241 (20.18) | 682 (15.11) | 529 (17.91) |
5–19 years | 9505 (48.51) | 5695 (51.28) | 2177 (48.24) | 1037 (35.12) |
20–29 years | 3782 (19.30) | 2041 (18.38) | 898 (19.90) | 679 (22.99) |
30–39 years | 2379 (12.14) | 1025 (9.23) | 675 (14.96) | 573 (19.40) |
≥40 years | 333 (1.70) | 103 (0.93) | 81 (1.79) | 135 (4.57) |
Occupation | ||||
Scattered children | 2245 (11.46) | 1389 (12.51) | 437 (9.68) | 354 (11.99) |
Nursery children | 3408 (17.39) | 2290 (20.62) | 611 (13.54) | 285 (9.65) |
Students | 7748 (39.54) | 4393 (39.56) | 1888 (41.83) | 996 (33.73) |
Others | 5203 (26.56) | 2538 (22.85) | 1318 (29.20) | 1120 (37.93) |
Unknown | 989 (5.05) | 495 (4.46) | 259 (5.74) | 198 (6.71) |
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Shi, L.; Lu, J.; Sun, X.; Li, Z.; Zhang, L.; Lu, Y.; Yao, Y. Impact of Varicella Immunization and Public Health and Social Measures on Varicella Incidence: Insights from Surveillance Data in Shanghai, 2013–2022. Vaccines 2023, 11, 1674. https://doi.org/10.3390/vaccines11111674
Shi L, Lu J, Sun X, Li Z, Zhang L, Lu Y, Yao Y. Impact of Varicella Immunization and Public Health and Social Measures on Varicella Incidence: Insights from Surveillance Data in Shanghai, 2013–2022. Vaccines. 2023; 11(11):1674. https://doi.org/10.3390/vaccines11111674
Chicago/Turabian StyleShi, Liming, Jia Lu, Xiaodong Sun, Zhi Li, Liping Zhang, Yihan Lu, and Ye Yao. 2023. "Impact of Varicella Immunization and Public Health and Social Measures on Varicella Incidence: Insights from Surveillance Data in Shanghai, 2013–2022" Vaccines 11, no. 11: 1674. https://doi.org/10.3390/vaccines11111674