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The proportion of comorbid condition to human influenza A pneumonia was 58%, lower than B pneumonia and H7N9 pneumonia patients (78% vs. 77.8%; p\u2009=\u20090.013). The proportion of invasive mechanical ventilation (IMV), lymphocytopenia, elevated lactate dehydrogenase to hospitalized human influenza A-related viral pneumonia patients was higher than B pneumonia patients (p\u2009&lt;\u20090.05), but lower than H7N9 pneumonia patients (p\u2009&lt;\u20090.05). In the multivariate analysis, pulmonary consolidation (odds ratio (OR): 13.67; 95% confidence interval (CI) 1.54\u2013121.12; p\u2009=\u20090.019) and positive bacterial culture (sputum) (OR: 7.71; 95% CI 2.48\u201324.03; p\u2009&lt;\u20090.001) were independently associated with IMV, while shock (OR: 13.16; 95% CI 2.06\u201384.07; p\u2009=\u20090.006), white blood cell count\u2009&gt;\u200910,000\/mm<jats:sup>3<\/jats:sup> (OR: 7.22; 95% CI 1.47\u201335.58; p\u2009=\u20090.015) and positive bacterial culture(blood or sputum) (OR: 6.27; 95% CI 1.36\u201328.85; p\u2009=\u20090.018) were independently associated with death in the three types hospitalized influenza-related viral pneumonia patients.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>Hospital influenza B-related viral pneumonia mainly affects the elderly and people with underlying diseases, while human influenza A pneumonia mainly affects the young adults; however, the mortality was similar. The hospitalized human influenza A-related viral pneumonia patients was severer than B pneumonia patients, but milder than H7N9 pneumonia patients. Pulmonary consolidation and positive bacterial culture (sputum) were independently associated with IMV, while shock, white blood cell count\u2009&gt;\u200910,000\/mm<jats:sup>3<\/jats:sup>, and positive bacterial culture (blood or sputum) were independently associated with death to three types hospitalized influenza-related viral pneumonia patients.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s12879-021-06485-x","type":"journal-article","created":{"date-parts":[[2021,9,25]],"date-time":"2021-09-25T18:02:33Z","timestamp":1632592953000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["A comparison of demographic, epidemiological and clinical characteristics of hospital influenza-related viral pneumonia patients"],"prefix":"10.1186","volume":"21","author":[{"given":"Bin","family":"Fu","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhengjie","family":"Wu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lingtong","family":"Huang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhaohui","family":"Chai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peidong","family":"Zheng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qinmiao","family":"Sun","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Silan","family":"Gu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qiaomai","family":"Xu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Haiting","family":"Feng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3033-7662","authenticated-orcid":false,"given":"Lingling","family":"Tang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2021,9,25]]},"reference":[{"key":"6485_CR1","doi-asserted-by":"publisher","first-page":"S27","DOI":"10.1093\/cid\/ciq009","volume":"52","author":"L Brammer","year":"2011","unstructured":"Brammer L, Blanton L, Epperson S, et al. 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