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Outline
To investigate influencing factors of influenza virus infection among hospitalized pregnant and postpartum women during influenza season in Suzhou City.
Based on the established active surveillance system for influenza-associated acute respiratory or febrile illness (ARFI) hospitalizations among the maternal population in Suzhou, we used rates/percentages to describe population distribution characteristics. Logistic regression analyses were performed to identify factors associated with laboratory-confirmed influenza infection in hospitalized pregnant and postpartum women during influenza season.
During 2018—2023 influenza seasons, 1 774 pregnant and postpartum women hospitalized with ARFI were included, with 479 cases (27.0%) testing positive and 1 295 negative by reverse transcription polymerase chain reaction (RT-PCR). Multivariable analysis confirmed that elevated risks persisted in first (aOR=2.49, 95% CI: 1.52-4.11) and third trimesters (aOR=1.83, 95% CI: 1.27-2.68). Influenza like illness (ILI) exposure increased risk by 86.0% (aOR=1.86, 95% CI: 1.36-2.55). Asthma was associated with an 83.0% lower risk (aOR=0.17, 95% CI: 0.03-0.56). Having ILI symptoms within the past 1 year (aOR=0.70, 95% CI: 0.51-0.94) and having children (aOR=0.77, 95% CI: 0.62-0.96) were also associated with a reduced risk of hospitalization with influenza infection.
Pregnant women in first and third trimesters should strengthen self-protection measures against seasonal influenza. Attention to health-related behaviors significantly reduces infection risks.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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