Considering the importance of the effectiveness of vaccination in terms of reducing the severity of COVID-19 and mortality, knowledge of the effect of the vaccine on the severity of COVID-19 in communities is essential. Therefore, the purpose of this study was to evaluate the effect of the COVID-19 vaccine on the severity of COVID-19 in southeastern Iran (Bam region). A case-control study of a total of 2,082 adults aged >18 years was conducted to evaluate the association between hospitalization due to COVID-19 and previous vaccination with existing vaccines (including Sinopharm, AstraZeneca, and CovIran Barkat) in the country. Multinomial logistic regression was used, and relative risk (RR) and 95% confidence intervals (CIs) were calculated After controlling for potential confounders, multinomial logistic regression revealed that COVID-19 vaccination reduced the likelihood of hospitalization for males and females in temporary wards (RRmen=0.22 vs. RRwomen=0.34), general wards (RRmen=0.25 vs RRwomen=0.31), and intensive care units (RRmen=0.47 vs RRwomen=0.77) (p < 0.001). The relative risk of hospitalization in all wards decreased for men and women who received Sinopharm or AstraZeneca and for women who received the Barkat vaccine, but only a significant difference was detected in the reduction in patients who received the Sinopharm vaccine (p < 0.001). The results showed that vaccination is related to reducing the severity of the disease in the hospital. Therefore, efforts to increase the vaccinated population can reduce the severity of COVID-19 and might reduce the need for intensive care in hospitals.
考虑到疫苗接种对降低 COVID-19 严重程度和死亡率的重要性,了解疫苗对社区 COVID-19 严重程度的影响至关重要。因此,本研究的目的是评估 COVID-19 疫苗对伊朗东南部(巴姆地区)COVID-19 严重程度的影响。本研究对 2082 名年龄大于 18 岁的成年人进行了病例对照研究,以评估因 COVID-19 住院治疗与之前接种该国现有疫苗(包括国药集团、阿斯利康和 CovIran Barkat)之间的关联。在控制了潜在的混杂因素后,多项式逻辑回归显示,接种 COVID-19 疫苗降低了临时病房男性和女性住院的可能性(RRmen=0.22 vs. RRwomen=0.34)、普通病房(RRmen=0.25 vs RRwomen=0.31)和重症监护病房(RRmen=0.47 vs RRwomen=0.77)(P < 0.001)。接种国药集团或阿斯利康疫苗的男性和女性以及接种巴卡特疫苗的女性在所有病房的住院相对风险都有所下降,但只有接种国药集团疫苗的患者的住院相对风险下降有显著差异(P < 0.001)。因此,努力增加疫苗接种人群可降低COVID-19的严重程度,并可减少医院对重症监护的需求。
{"title":"COVID-19 Vaccine Effectiveness on the Severity of Disease: A\u0000Case-control Study in Southeastern Iran","authors":"Mohsen Mohammadi, Abdolali Golpayegani, Fatemeh Doost Mohammadi, Fatemeh Majidpour, Mostafa Dianati-Nasab, Abdolreza Bahrami, Elahe Hesari, Maryam Dargahpour, Parisa Jalali","doi":"10.2174/0126667975312941240718111040","DOIUrl":"https://doi.org/10.2174/0126667975312941240718111040","url":null,"abstract":"\u0000\u0000Considering the importance of the effectiveness of vaccination in terms of\u0000reducing the severity of COVID-19 and mortality, knowledge of the effect of the vaccine on the severity of COVID-19 in communities is essential. Therefore, the purpose of this study was to evaluate\u0000the effect of the COVID-19 vaccine on the severity of COVID-19 in southeastern Iran (Bam region).\u0000\u0000\u0000\u0000A case-control study of a total of 2,082 adults aged >18 years was conducted to evaluate\u0000the association between hospitalization due to COVID-19 and previous vaccination with existing\u0000vaccines (including Sinopharm, AstraZeneca, and CovIran Barkat) in the country. Multinomial logistic regression was used, and relative risk (RR) and 95% confidence intervals (CIs) were\u0000calculated\u0000\u0000\u0000\u0000After controlling for potential confounders, multinomial logistic regression revealed that\u0000COVID-19 vaccination reduced the likelihood of hospitalization for males and females in temporary\u0000wards (RRmen=0.22 vs. RRwomen=0.34), general wards (RRmen=0.25 vs RRwomen=0.31), and\u0000intensive care units (RRmen=0.47 vs RRwomen=0.77) (p < 0.001). The relative risk of hospitalization in all wards decreased for men and women who received Sinopharm or AstraZeneca and for\u0000women who received the Barkat vaccine, but only a significant difference was detected in the reduction in patients who received the Sinopharm vaccine (p < 0.001).\u0000\u0000\u0000\u0000The results showed that vaccination is related to reducing the severity of the disease in\u0000the hospital. Therefore, efforts to increase the vaccinated population can reduce the severity of\u0000COVID-19 and might reduce the need for intensive care in hospitals.\u0000","PeriodicalId":10815,"journal":{"name":"Coronaviruses","volume":"82 23","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141817316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}