Article(id=1323941260926526254, tenantId=1146029695717560320, journalId=1227665162245664772, issueId=1323941237702668764, articleNumber=null, orderNo=null, doi=10.20043/j.cnki.MPM.202506094, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1749398400000, receivedDateStr=2025-06-09, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793581794244, onlineDateStr=2026-11-02, pubDate=1765296000000, pubDateStr=2025-12-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793581794244, onlineIssueDateStr=2026-11-02, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793581794244, creator=13701087609, updateTime=1793581794244, updator=13701087609, issue=Issue{id=1323941237702668764, tenantId=1146029695717560320, journalId=1227665162245664772, year='2025', volume='52', issue='23', pageStart='4225', pageEnd='4416', issueExtLink='null', onlineDate='null', pubDate='1765296000000', pubDateStr='2025-12-10', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1793581788707, creator='13701087609', updateTime=1793581887795, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1323941653374959780, tenantId=1146029695717560320, journalId=1227665162245664772, issueId=1323941237702668764, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1323941653374959781, tenantId=1146029695717560320, journalId=1227665162245664772, issueId=1323941237702668764, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=4303, endPage=4309, ext={EN=ArticleExt(id=1323941261304013615, articleId=1323941260926526254, tenantId=1146029695717560320, journalId=1227665162245664772, language=EN, title=Association between serum 25-Hydroxyvitamin D levels and the risk of respiratory tract infections in obese populations: an NHANES-based analysis, columnId=1228016572783063333, journalTitle=Modern Preventive Medicine, columnName=Nutrition and Food Hygiene, runingTitle=null, highlight=null, articleAbstract=
Objective

To explore the association between serum 25-hydroxyvitamin D [25(OH)D] concentration and the risk of respiratory tract infections(RTIs) in obese populations, analyze the influence of obesity stratification on the relationship between the two, and provide a scientific basis for the infection prevention and control strategies of RTIs in obese populations.

Methods

Based on the data of the National Health and Nutrition Examination Survey(NHANES) of the United States from 2009 to 2018,participants over 20 years old were included as the research subjects. The relationship between serum 25(OH)D and the risk of RTIs in obese people was analyzed using multivariable logistic regression, subgroup analysis, restricted cubic spline analysis,and logistic inflection point model.

Results

A total of 21 532 research subjects were finally included (12 989 cases in the non-obese group, 4 629 cases in the grade I obese group, 2 196 cases in the grade II obese group, and 1 718 cases in the grade III obese group), and there were significant differences in baseline characteristics among the groups (P<0.001). The overall prevalence rate of RTIs was 17.5%. Compared with the non-obese group, the serum 25(OH)D levels of obese people at all levels were significantly decreased, and the proportion of serum 25(OH)D deficiency increased with the aggravation of obesity (up to 16.9% in the grade III obese group). Serum 25(OH)D level was a protective factor for reducing the risk of RTIs. However, its protective effect showed a gradient decreasing trend with the increase of obesity degree. Among participants with adequate serum 25(OH)D, the protective effect persisted: grade I obesity group (OR=0.75, 95% CI: 0.62-0.88), grade II obesity group (OR=0.78, 95% CI: 0.70-0.86),and grade III obesity group (OR=0.82, 95% CI: 0.74-0.90). There was a clear threshold effect in the non-obese group (inflection point=29.96 nmol/L), the threshold in the grade I obese group shifted down to 25.97 nmol/L, while the grade II and grade III obese groups showed a linear relationship.

Conclusion

Obese individuals have a deficiency in serum 25(OH)D, which is closely associated with an increased risk of respiratory tract infections. Moreover, the higher the degree of obesity, the more limited the protective effect of serum 25(OH)D. Therefore, stratified joint intervention strategies need to be developed for obese individuals.

, authors=Quan CHEN1, Nan ZHOU2, Shan-shan XU1, Xiao-ting LEI1, Jing XU1, Li RUI1, Zheng-xiang DAI1, authorsList=Quan CHEN, Nan ZHOU, Shan-shan XU, Xiao-ting LEI, Jing XU, Li RUI, Zheng-xiang DAI, authorCompany=null, correspAuthors=Zheng-xiang DAI, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1323941265137607482, articleId=1323941260926526254, tenantId=1146029695717560320, journalId=1227665162245664772, language=CN, title=基于NHANES的血清25-羟基维生素D水平与肥胖人群呼吸道感染风险的关联分析, columnId=1228016573034721597, journalTitle=现代预防医学, columnName=营养与食品卫生, runingTitle=null, highlight=null, articleAbstract=
目的

探讨血清25-羟基维生素D[25-hydroxyvitamin D,25(OH)D]水平与肥胖人群呼吸道感染(respiratory tract infections, RTIs)风险的关联,分析肥胖分层对两者关系的影响,为肥胖人群RTIs的感染防控策略提供科学依据。

方法

基于2009—2018年美国国家健康与营养调查(National Health and Nutrition Examination Survey,NHANES)数据,纳入20岁以上的参与者作为研究对象,利用多因素 logistic 回归、亚组分析、限制性立方样条分析、logistic拐点模型分析血清25(OH)D与肥胖人群RTIs风险的关系。

结果

最终纳入21 532名研究对象,非肥胖组12 989例、I级肥胖组4 629例、II级肥胖组2 196例、III级肥胖组1 718例,各组基线特征存在显著差异(P<0.001),RTIs总患病率为17.5%。与非肥胖组相比,各级肥胖人群的血清25(OH)D水平显著降低,且血清25(OH)D缺乏比例随肥胖程度加重而升高(III级肥胖组达16.9%)。血清25(OH)D水平是RTIs风险降低的保护因素,但随着肥胖程度增加其保护作用呈梯度递减趋势,I级、II级、III级肥胖组血清25(OH)D充足组的保护效应OR=0.75(95% CI: 0.62~0.88)、0.78(95% CI: 0.70~0.86)、0.82(95% CI:0.74~0.90)。非肥胖组存在明确阈值效应(拐点=29.96 nmol/L),I级肥胖组阈值下移至25.97 nmol/L,而II级和III级肥胖组则呈现线性关系。

结论

肥胖人群血清25(OH)D缺乏与RTIs风险增加密切相关,且肥胖程度越高,血清25(OH)D的保护作用越受限,需针对肥胖人群分层制定联合干预策略。

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陈权(1996—),男,硕士,中医师,研究方向:感染性疾病防治研究

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戴正香,E-mail:
, copyrightStatement=本刊刊出的所有文章不代表中华预防医学会和本刊编委会的观点,除非特别声明。, copyrightOwner=中华预防医学会和四川大学华西公共卫生学院, extLink=null, articleAbsUrl=null, sourceXml=IMgxgPbWHIMDyV7WNQ4a6g==, magXml=WbC9/E/CLbqHRAPKMr4Nig==, pdfUrl=null, pdf=fQ4lbCoDlic4hVeMvE8jgA==, pdfFileSize=985450, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=YRWcuUmqChb5XTRJHy60/g==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=d80phXJjR2I5BVuLLpf4cA==, mapNumber=null, fund=null)}, authors=[Author(id=1323941265951302465, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1323941266043577155, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, authorId=1323941265951302465, language=EN, stringName=Quan CHEN, firstName=Quan, middleName=null, lastName=CHEN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=Hospital Infection Management Office, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1323941266261680964, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, authorId=1323941265951302465, language=CN, stringName=陈权, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=1, address=1.南京中医药大学附属医院感染管理办公室,江苏 南京 210029, bio={"content":"

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Diabetes,Metabolic Syndrome and Obesity: Targets and Therapy, 2020, 13:4131-4139., articleTitle=Inadequacy of vitamin D nutritional status in individuals with metabolically unhealthy obesity phenotype: the relevance of insulin resistance, refAbstract=null)], funds=[Fund(id=1323941275107468155, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, awardId=JSYB2024KF19, language=CN, fundingSource=江苏省中医疫病研究中心开放课题(JSYB2024KF19), fundOrder=null, country=null), Fund(id=1323941275187159932, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, awardId=Ym2023104, language=CN, fundingSource=江苏省预防医学科研课题(Ym2023104), fundOrder=null, country=null), Fund(id=1323941275254268797, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, awardId=JSYGY-2-2020-95, language=CN, fundingSource=江苏省医院协会医院管理创新研究课题(JSYGY-2-2020-95), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1323941265565426491, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, xref=1., ext=[AuthorCompanyExt(id=1323941265573815100, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, companyId=1323941265565426491, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Hospital Infection Management Office, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029,China), AuthorCompanyExt(id=1323941265586398013, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, companyId=1323941265565426491, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1.南京中医药大学附属医院感染管理办公室,江苏 南京 210029)]), AuthorCompany(id=1323941265884193598, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, xref=2., ext=[AuthorCompanyExt(id=1323941265892582207, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, companyId=1323941265884193598, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=2.南京中医药大学第二附属医院中医康复中心)])], figs=[ArticleFig(id=1323941271739442029, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, language=EN, label=Figure 1, caption=Flowchart of the screening process for research participants, figureFileSmall=HU1cPGxDyQQtD+98K3KpKQ==, figureFileBig=YRWcuUmqChb5XTRJHy60/g==, tableContent=null), ArticleFig(id=1323941273417163630, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, language=CN, label=图1, caption=研究参与人员筛选流程图, figureFileSmall=HU1cPGxDyQQtD+98K3KpKQ==, figureFileBig=YRWcuUmqChb5XTRJHy60/g==, tableContent=null), ArticleFig(id=1323941273685599087, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, language=EN, label=Figure 2, caption=Curve fitting graph of serum 25(OH)D and the risk of respiratory tract infection in obese population, figureFileSmall=B39YWeoXj1Uhh1QkEruq9w==, figureFileBig=SVH/xah83neX4kOC7yBLQg==, tableContent=null), ArticleFig(id=1323941273765290864, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, language=CN, label=图2, caption=血清25(OH)D水平与肥胖人群RTIs风险的曲线拟合图

注:A、B、C、D依次为非肥胖组、I级肥胖组、II级肥胖组、III级肥胖组血清25(OH)D水平与RTIs风险的曲线拟合图。

, figureFileSmall=B39YWeoXj1Uhh1QkEruq9w==, figureFileBig=SVH/xah83neX4kOC7yBLQg==, tableContent=null), ArticleFig(id=1323941273853371249, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, language=EN, label=Table 1, caption=

General information of populations with different characteristics [n(%), ()]

, figureFileSmall=null, figureFileBig=null, tableContent=
变量总参与者 (n=21 532)非肥胖组 (n=12 989)I级肥胖组 (n=4 629)II级肥胖组 (n=2 196)III级肥胖组 (n=1 718)P值
性别<0.001
男性10 614 (49.3)6 799 (52.3)2 334 (50.4)905 (41.2)576 (33.5)
女性10 918 (50.7)6 190 (47.7)2 295 (49.6)1 291 (58.8)1 142 (66.5)
年龄(岁)49.8±17.549.4±18.251.7±16.650.2±16.147.9±15.3<0.001
种族<0.001
墨西哥美国人9 008 (41.8)5 582 (43.0)1 869 (40.4)883 (40.2)674 (39.2)
非西班牙裔白人4 467 (20.7)2 270 (17.5)1 054 (22.8)582 (26.5)561 (32.7)
非西班牙裔黑人3 156 (14.7)1 683 (13.0)835 (18.0)376 (17.1)262 (15.3)
其他种族4 901 (22.8)3 454 (26.6)871 (18.8)355 (16.2)221 (12.9)
学历<0.001
高中以下1 940 ( 9.0)1 132 (8.7)489 (10.6)194 (8.8)125 (7.3)
高中7 665 (35.6)4 444 (34.2)1 728 (37.3)849 (38.7)644 (37.5)
大学及以上11 927 (55.4)7 413 (57.1)2 412 (52.1)1 153 (52.5)949 (55.2)
贫困收入比<0.001
<1.36 944 (32.2)4 060 (31.3)1 468 (31.7)760 (34.6)656 (38.2)
1.3~3.58 070 (37.5)4 731 (36.4)1 796 (38.8)864 (39.3)679 (39.5)
>3.56 518 (30.3)4 198 (32.3)1 365 (29.5)572 (26.0)383 (22.3)
饮酒<0.001
否5 165 (24.0)2 963 (22.8)1 136 (24.5)583 (26.5)483 (28.1)
是16 367 (76.0)10 026 (77.2)3 493 (75.5)1 613 (73.5)1 235 (71.9)
吸烟<0.001
从未吸烟12 024 (55.8)7 219 (55.6)2 576 (55.6)1 252 (57.0)977 (56.9)
曾有吸烟史5 238 (24.3)3 000 (23.1)1 231 (26.6)570 (26.0)437 (25.4)
现在吸烟4 270 (19.8)2 770 (21.3)822 (17.8)374 (17.0)304 (17.7)
医疗保险0.009
否4 460 (20.7)2 789 (21.5)903 (19.5)427 (19.4)341 (19.8)
是17 072 (79.3)10 200 (78.5)3 726 (80.5)1 769 (80.6)1 377 (80.2)
呼吸道感染<0.001
否17 756 (82.5)10 826 (83.3)3 790 (81.9)1 769 (80.6)1 371 (79.8)
是3 776 (17.5)2 163 (16.7)839 (18.1)427 (19.4)347 (20.2)
糖尿病<0.001
否18 625 (86.5)11 804 (90.9)3 803 (82.2)1 735 (79.0)1 283 (74.7)
是2 907 (13.5)1 185 (9.1)826 (17.8)461 (21.0)435 (25.3)
哮喘<0.001
否18 321 (85.1)11 320 (87.2)3 930 (84.9)1 796 (81.8)1 275 (74.2)
是3 211 (14.9)1 669 (12.8)699 (15.1)400 (18.2)443 (25.8)
抑郁<0.001
否19 276 (89.5)11 881 (91.5)4 077 (88.1)1 907 (86.8)1 411 (82.1)
是2 256 (10.5)1 108 (8.5)552 (11.9)289 (13.2)307 (17.9)
睡眠障碍<0.001
否15 712 (73.0)9 955 (76.6)3 305 (71.4)1 418 (64.6)1 034 (60.2)
是5 820 (27.0)3 034 (23.4)1 324 (28.6)778 (35.4)684 (39.8)
BMI(kg/m2)29.4±7.125.0±3.132.2±1.437.1±1.445.7±5.8<0.001
血清糖化血红蛋白(%)5.8±1.15.6±0.96.0±1.26.1±1.36.2±1.3<0.001
血清白蛋白(g/L)42.3±3.443.0±3.341.9±3.241.1±3.139.8±3.2<0.001
25(OH)D浓度(nmol/L)65.8±28.768.7±29.064.2±27.660.0±28.155.8±26.4<0.001
25(OH)D浓度分组<0.001
严重缺乏1 721 (8.0)840 (6.5)351 (7.6)239 (10.9)291 (16.9)
中度缺乏4 938 (22.9)2 659 (20.5)1 142 (24.7)642 (29.2)495 (28.8)
不足7 799 (36.2)4 720 (36.3)1 762 (38.1)769 (35.0)548 (31.9)
充足7 074 (32.9)4 770 (36.7)1 374 (29.7)546 (24.9)384 (22.4)
), ArticleFig(id=1323941273970811764, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, language=CN, label=表1, caption=

不同特征人群一般资料 [n(%),()]

, figureFileSmall=null, figureFileBig=null, tableContent=
变量总参与者 (n=21 532)非肥胖组 (n=12 989)I级肥胖组 (n=4 629)II级肥胖组 (n=2 196)III级肥胖组 (n=1 718)P值
性别<0.001
男性10 614 (49.3)6 799 (52.3)2 334 (50.4)905 (41.2)576 (33.5)
女性10 918 (50.7)6 190 (47.7)2 295 (49.6)1 291 (58.8)1 142 (66.5)
年龄(岁)49.8±17.549.4±18.251.7±16.650.2±16.147.9±15.3<0.001
种族<0.001
墨西哥美国人9 008 (41.8)5 582 (43.0)1 869 (40.4)883 (40.2)674 (39.2)
非西班牙裔白人4 467 (20.7)2 270 (17.5)1 054 (22.8)582 (26.5)561 (32.7)
非西班牙裔黑人3 156 (14.7)1 683 (13.0)835 (18.0)376 (17.1)262 (15.3)
其他种族4 901 (22.8)3 454 (26.6)871 (18.8)355 (16.2)221 (12.9)
学历<0.001
高中以下1 940 ( 9.0)1 132 (8.7)489 (10.6)194 (8.8)125 (7.3)
高中7 665 (35.6)4 444 (34.2)1 728 (37.3)849 (38.7)644 (37.5)
大学及以上11 927 (55.4)7 413 (57.1)2 412 (52.1)1 153 (52.5)949 (55.2)
贫困收入比<0.001
<1.36 944 (32.2)4 060 (31.3)1 468 (31.7)760 (34.6)656 (38.2)
1.3~3.58 070 (37.5)4 731 (36.4)1 796 (38.8)864 (39.3)679 (39.5)
>3.56 518 (30.3)4 198 (32.3)1 365 (29.5)572 (26.0)383 (22.3)
饮酒<0.001
否5 165 (24.0)2 963 (22.8)1 136 (24.5)583 (26.5)483 (28.1)
是16 367 (76.0)10 026 (77.2)3 493 (75.5)1 613 (73.5)1 235 (71.9)
吸烟<0.001
从未吸烟12 024 (55.8)7 219 (55.6)2 576 (55.6)1 252 (57.0)977 (56.9)
曾有吸烟史5 238 (24.3)3 000 (23.1)1 231 (26.6)570 (26.0)437 (25.4)
现在吸烟4 270 (19.8)2 770 (21.3)822 (17.8)374 (17.0)304 (17.7)
医疗保险0.009
否4 460 (20.7)2 789 (21.5)903 (19.5)427 (19.4)341 (19.8)
是17 072 (79.3)10 200 (78.5)3 726 (80.5)1 769 (80.6)1 377 (80.2)
呼吸道感染<0.001
否17 756 (82.5)10 826 (83.3)3 790 (81.9)1 769 (80.6)1 371 (79.8)
是3 776 (17.5)2 163 (16.7)839 (18.1)427 (19.4)347 (20.2)
糖尿病<0.001
否18 625 (86.5)11 804 (90.9)3 803 (82.2)1 735 (79.0)1 283 (74.7)
是2 907 (13.5)1 185 (9.1)826 (17.8)461 (21.0)435 (25.3)
哮喘<0.001
否18 321 (85.1)11 320 (87.2)3 930 (84.9)1 796 (81.8)1 275 (74.2)
是3 211 (14.9)1 669 (12.8)699 (15.1)400 (18.2)443 (25.8)
抑郁<0.001
否19 276 (89.5)11 881 (91.5)4 077 (88.1)1 907 (86.8)1 411 (82.1)
是2 256 (10.5)1 108 (8.5)552 (11.9)289 (13.2)307 (17.9)
睡眠障碍<0.001
否15 712 (73.0)9 955 (76.6)3 305 (71.4)1 418 (64.6)1 034 (60.2)
是5 820 (27.0)3 034 (23.4)1 324 (28.6)778 (35.4)684 (39.8)
BMI(kg/m2)29.4±7.125.0±3.132.2±1.437.1±1.445.7±5.8<0.001
血清糖化血红蛋白(%)5.8±1.15.6±0.96.0±1.26.1±1.36.2±1.3<0.001
血清白蛋白(g/L)42.3±3.443.0±3.341.9±3.241.1±3.139.8±3.2<0.001
25(OH)D浓度(nmol/L)65.8±28.768.7±29.064.2±27.660.0±28.155.8±26.4<0.001
25(OH)D浓度分组<0.001
严重缺乏1 721 (8.0)840 (6.5)351 (7.6)239 (10.9)291 (16.9)
中度缺乏4 938 (22.9)2 659 (20.5)1 142 (24.7)642 (29.2)495 (28.8)
不足7 799 (36.2)4 720 (36.3)1 762 (38.1)769 (35.0)548 (31.9)
充足7 074 (32.9)4 770 (36.7)1 374 (29.7)546 (24.9)384 (22.4)
), ArticleFig(id=1323941274235052917, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, language=EN, label=Table 2, caption=

Multivariable logistic regression of serum 25(OH)D level and the risk of respiratory tract infection

, figureFileSmall=null, figureFileBig=null, tableContent=
变量模型1
OR(95% CI)
P值模型2
OR(95% CI)
P值模型3
OR(95% CI)
P值
25(OHD)浓度(连续变量)0.95 (0.93~0.97)<0.0010.96 (0.94~0.98)0.0020.97 (0.95~0.99)0.004
25(OHD)浓度(分类变量)
严重缺乏RefRefRef
中度缺乏0.82 (0.72~0.94)0.0040.84 (0.73~0.96)0.0100.87 (0.76~0.99)<0.001
不足0.75 (0.65~0.86)<0.0010.76 (0.66~0.87)<0.0010.80 (0.69~0.92)<0.001
充足0.67 (0.58~0.76)<0.0010.69 (0.60~0.78)<0.0010.72(0.62~0.82)<0.001
), ArticleFig(id=1323941274339910518, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, language=CN, label=表2, caption=

血清25(OHD)水平与RTIs风险的多因素logistic回归

, figureFileSmall=null, figureFileBig=null, tableContent=
变量模型1
OR(95% CI)
P值模型2
OR(95% CI)
P值模型3
OR(95% CI)
P值
25(OHD)浓度(连续变量)0.95 (0.93~0.97)<0.0010.96 (0.94~0.98)0.0020.97 (0.95~0.99)0.004
25(OHD)浓度(分类变量)
严重缺乏RefRefRef
中度缺乏0.82 (0.72~0.94)0.0040.84 (0.73~0.96)0.0100.87 (0.76~0.99)<0.001
不足0.75 (0.65~0.86)<0.0010.76 (0.66~0.87)<0.0010.80 (0.69~0.92)<0.001
充足0.67 (0.58~0.76)<0.0010.69 (0.60~0.78)<0.0010.72(0.62~0.82)<0.001
), ArticleFig(id=1323941274650289015, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, language=EN, label=Table 3, caption=

Subgroup analysis of serum 25(OH)D levels and the risk of respiratory tract infections in obese populations

, figureFileSmall=null, figureFileBig=null, tableContent=
变量非肥胖组
OR(95% CI)
P值I级肥胖组
OR(95% CI)
P值II级肥胖组
OR(95% CI)
P值III级肥胖组
OR(95% CI)
P值交互作用
P值
25(OHD)浓度(连续变量)0.95 (0.93~0.97)<0.0010.97 (0.96~0.98)<0.0010.98 (0.97~0.99)<0.0010.98 (0.97~0.99)0.0050.024
25(OHD)浓度(分类变量)
严重缺乏RefRefRefRef0.031
中度缺乏0.78 (0.64~0.95)0.0010.83 (0.68~0.98)0.0080.85 (0.78~0.92)0.0110.89 (0.80~0.98)0.005
不足0.74 (0.61~0.87)<0.0010.79 (0.65~0.95)0.0020.82(0.75~0.89)<0.0010.86 (0.78~0.94)0.001
充足0.68 (0.55~0.81)<0.0010.75 (0.62~0.88)<0.0010.78(0.70~0.86)<0.0010.82 (0.74~0.90)<0.001
), ArticleFig(id=1323941274721592184, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, language=CN, label=表3, caption=

血清25(OH)D水平与肥胖人群RTIs风险的亚组分析

, figureFileSmall=null, figureFileBig=null, tableContent=
变量非肥胖组
OR(95% CI)
P值I级肥胖组
OR(95% CI)
P值II级肥胖组
OR(95% CI)
P值III级肥胖组
OR(95% CI)
P值交互作用
P值
25(OHD)浓度(连续变量)0.95 (0.93~0.97)<0.0010.97 (0.96~0.98)<0.0010.98 (0.97~0.99)<0.0010.98 (0.97~0.99)0.0050.024
25(OHD)浓度(分类变量)
严重缺乏RefRefRefRef0.031
中度缺乏0.78 (0.64~0.95)0.0010.83 (0.68~0.98)0.0080.85 (0.78~0.92)0.0110.89 (0.80~0.98)0.005
不足0.74 (0.61~0.87)<0.0010.79 (0.65~0.95)0.0020.82(0.75~0.89)<0.0010.86 (0.78~0.94)0.001
充足0.68 (0.55~0.81)<0.0010.75 (0.62~0.88)<0.0010.78(0.70~0.86)<0.0010.82 (0.74~0.90)<0.001
), ArticleFig(id=1323941274797089657, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, language=EN, label=Table 4, caption=

Threshold effect analysis of serum 25(OH)D and respiratory tract infection risk in different obese subgroups

, figureFileSmall=null, figureFileBig=null, tableContent=
分析指标非肥胖组OR(95% CI)P值I级肥胖组OR(95% CI)P值
拐点(nmol/L)29.96(27.20~32.74)0.01425.97(21.23~30.72)0.035
拐点前斜率(OR)0.97(0.96~0.98)0.0010.98(0.89~1.09)0.751
拐点后斜率(OR)1.00(0.99~1.00)0.9830.99(0.99~1.00)0.593
), ArticleFig(id=1323941274885170042, tenantId=1146029695717560320, journalId=1227665162245664772, articleId=1323941260926526254, language=CN, label=表4, caption=

不同肥胖亚组血清25(OH)D水平与RTIs风险的阈值效应分析

, figureFileSmall=null, figureFileBig=null, tableContent=
分析指标非肥胖组OR(95% CI)P值I级肥胖组OR(95% CI)P值
拐点(nmol/L)29.96(27.20~32.74)0.01425.97(21.23~30.72)0.035
拐点前斜率(OR)0.97(0.96~0.98)0.0010.98(0.89~1.09)0.751
拐点后斜率(OR)1.00(0.99~1.00)0.9830.99(0.99~1.00)0.593
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基于NHANES的血清25-羟基维生素D水平与肥胖人群呼吸道感染风险的关联分析
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陈权 1 , 周楠 2 , 许珊珊 1 , 雷晓婷 1 , 徐静 1 , 芮丽 1 , 戴正香 1
现代预防医学 | 营养与食品卫生 2025,52(23): 4303-4309
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现代预防医学 |营养与食品卫生 2025 , 52 (23) : 4303 -4309
基于NHANES的血清25-羟基维生素D水平与肥胖人群呼吸道感染风险的关联分析
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陈权1, 周楠2, 许珊珊1, 雷晓婷1, 徐静1, 芮丽1, 戴正香1
作者信息
  • 1.南京中医药大学附属医院感染管理办公室,江苏 南京 210029
  • 2.南京中医药大学第二附属医院中医康复中心
通讯作者:
戴正香,E-mail:
作者简介:

陈权(1996—),男,硕士,中医师,研究方向:感染性疾病防治研究

Association between serum 25-Hydroxyvitamin D levels and the risk of respiratory tract infections in obese populations: an NHANES-based analysis
Quan CHEN1, Nan ZHOU2, Shan-shan XU1, Xiao-ting LEI1, Jing XU1, Li RUI1, Zheng-xiang DAI1
Affiliations
  • Hospital Infection Management Office, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029,China
出版时间: 2025-12-10 doi: 10.20043/j.cnki.MPM.202506094
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目的

探讨血清25-羟基维生素D[25-hydroxyvitamin D,25(OH)D]水平与肥胖人群呼吸道感染(respiratory tract infections, RTIs)风险的关联,分析肥胖分层对两者关系的影响,为肥胖人群RTIs的感染防控策略提供科学依据。

方法

基于2009—2018年美国国家健康与营养调查(National Health and Nutrition Examination Survey,NHANES)数据,纳入20岁以上的参与者作为研究对象,利用多因素 logistic 回归、亚组分析、限制性立方样条分析、logistic拐点模型分析血清25(OH)D与肥胖人群RTIs风险的关系。

结果

最终纳入21 532名研究对象,非肥胖组12 989例、I级肥胖组4 629例、II级肥胖组2 196例、III级肥胖组1 718例,各组基线特征存在显著差异(P<0.001),RTIs总患病率为17.5%。与非肥胖组相比,各级肥胖人群的血清25(OH)D水平显著降低,且血清25(OH)D缺乏比例随肥胖程度加重而升高(III级肥胖组达16.9%)。血清25(OH)D水平是RTIs风险降低的保护因素,但随着肥胖程度增加其保护作用呈梯度递减趋势,I级、II级、III级肥胖组血清25(OH)D充足组的保护效应OR=0.75(95% CI: 0.62~0.88)、0.78(95% CI: 0.70~0.86)、0.82(95% CI:0.74~0.90)。非肥胖组存在明确阈值效应(拐点=29.96 nmol/L),I级肥胖组阈值下移至25.97 nmol/L,而II级和III级肥胖组则呈现线性关系。

结论

肥胖人群血清25(OH)D缺乏与RTIs风险增加密切相关,且肥胖程度越高,血清25(OH)D的保护作用越受限,需针对肥胖人群分层制定联合干预策略。

25-羟基维生素D  /  肥胖  /  呼吸道感染  /  NHANES  /  横断面研究
Objective

To explore the association between serum 25-hydroxyvitamin D [25(OH)D] concentration and the risk of respiratory tract infections(RTIs) in obese populations, analyze the influence of obesity stratification on the relationship between the two, and provide a scientific basis for the infection prevention and control strategies of RTIs in obese populations.

Methods

Based on the data of the National Health and Nutrition Examination Survey(NHANES) of the United States from 2009 to 2018,participants over 20 years old were included as the research subjects. The relationship between serum 25(OH)D and the risk of RTIs in obese people was analyzed using multivariable logistic regression, subgroup analysis, restricted cubic spline analysis,and logistic inflection point model.

Results

A total of 21 532 research subjects were finally included (12 989 cases in the non-obese group, 4 629 cases in the grade I obese group, 2 196 cases in the grade II obese group, and 1 718 cases in the grade III obese group), and there were significant differences in baseline characteristics among the groups (P<0.001). The overall prevalence rate of RTIs was 17.5%. Compared with the non-obese group, the serum 25(OH)D levels of obese people at all levels were significantly decreased, and the proportion of serum 25(OH)D deficiency increased with the aggravation of obesity (up to 16.9% in the grade III obese group). Serum 25(OH)D level was a protective factor for reducing the risk of RTIs. However, its protective effect showed a gradient decreasing trend with the increase of obesity degree. Among participants with adequate serum 25(OH)D, the protective effect persisted: grade I obesity group (OR=0.75, 95% CI: 0.62-0.88), grade II obesity group (OR=0.78, 95% CI: 0.70-0.86),and grade III obesity group (OR=0.82, 95% CI: 0.74-0.90). There was a clear threshold effect in the non-obese group (inflection point=29.96 nmol/L), the threshold in the grade I obese group shifted down to 25.97 nmol/L, while the grade II and grade III obese groups showed a linear relationship.

Conclusion

Obese individuals have a deficiency in serum 25(OH)D, which is closely associated with an increased risk of respiratory tract infections. Moreover, the higher the degree of obesity, the more limited the protective effect of serum 25(OH)D. Therefore, stratified joint intervention strategies need to be developed for obese individuals.

25-hydroxyvitamin D  /  Obesity  /  Respiratory tract infections  /  NHANES  /  Cross sectional study
陈权, 周楠, 许珊珊, 雷晓婷, 徐静, 芮丽, 戴正香. 基于NHANES的血清25-羟基维生素D水平与肥胖人群呼吸道感染风险的关联分析. 现代预防医学, 2025 , 52 (23) : 4303 -4309 . DOI: 10.20043/j.cnki.MPM.202506094
Quan CHEN, Nan ZHOU, Shan-shan XU, Xiao-ting LEI, Jing XU, Li RUI, Zheng-xiang DAI. Association between serum 25-Hydroxyvitamin D levels and the risk of respiratory tract infections in obese populations: an NHANES-based analysis[J]. Modern Preventive Medicine, 2025 , 52 (23) : 4303 -4309 . DOI: 10.20043/j.cnki.MPM.202506094
呼吸道感染(respiratory tract infections,RTIs)是由多种微生物包括细菌、病毒、支原体、真菌等侵入呼吸道并进行繁殖导致的感染性疾病。作为全球范围内最常见的疾病负担之一,每年急性上呼吸道感染的直接和间接医疗费用超过400亿美元,下呼吸道感染在每年导致约230余万例死亡,肥胖人群发生RTIs风险约是正常体重的人群的2倍[1-3]。25-羟基维生素D[25-hydroxyvitamin D,25(OH)D]是维持人体正常生理功能所必需的营养素,参与调节钙磷代谢、免疫调节、糖代谢、改善胰岛素抵抗、细胞生长分化等,是评估维生素D营养状态的金标准[4]。研究表明血清25(OH)D是RTIs风险的关键调节因子,约有47.9%的人群血清25(OH)D水平<50 nmol/L,肥胖人群血清25(OH)D水平不足的现象更为显著[5-6],但目前尚无研究揭示血清25(OH)D与不同程度肥胖人群RTIs风险的剂量-反应关系。
在国家卫健委“体重管理年”行动背景下,肥胖及相关代谢性疾病的感染防控已成为公共卫生的重点工作之一,肥胖人群的RTIs感染防控工作面临新的挑战。因此,本研究基于2009—2018年美国国家健康与营养调查(National Health and Nutrition Examination Survey, NHANES)数据库五个周期的大样本数据,首次在全国代表性样本中多维度评估25(OH)D水平与肥胖人群RTIs风险的关系。旨在为个性化营养干预降低肥胖人群RTIs风险提供理论依据,并且为构建肥胖人群RTIs风险分层防控体系、优化公共卫生资源配置等方面提供参考。
本研究为基于NHANES数据库的横断面研究,为保证核心变量血清25(OH)D检测方法和RTIs健康问卷定义的一致性,以及两类数据信息采集的连续性和完整性,共纳入2009—2018年五个周期的全国性抽样数据。NHANES采用分层多阶段概率抽样设计,覆盖全美非住院人群,数据涵盖人口学特征、体格测量、实验室检查及健康问卷调查信息。研究经美国国家卫生统计中心伦理审查委员会批准,所有参与者均签署知情同意书[7]。按WHO肥胖分级标准[8],将研究人群划分为非肥胖组[身体质量指数(body mass index,BMI)<30 kg/m2]、I级肥胖组(BMI: 30.0~34.9 kg/m2)、II级肥胖组(BMI:35.0~39.9 kg/m2)、III级肥胖组(BMI≥40.0 kg/m2)。排除标准:(1)年龄<20岁;(2)妊娠状态;(3)BMI数据缺失;(4)血清25(OH)D水平、RTIs以及协变量数据缺失。筛选流程见图1。
血清25(OH)D水平,采用高效液相色谱-串联质谱法测定。根据临床指南分为四组:严重缺乏[25(OH)D<30 nmol/L]、中度缺乏[25(OH)D为30.0~49.9 nmol/L]、不足[25(OH)D为50.0~74.9 nmol/L]、充足[25(OH)D为≥75.0 nmol/L][9]。使用NHANES健康调查问卷中的条目:过去30 d内自我报告的RTIs(条目内容:过去30 d内是否确诊过感冒、流感和肺炎),如果回答是,则判断该患者曾患有RTIs[10]。
根据既往文献确定了潜在的协变量[11],包括年龄、性别、种族、学历水平、贫困收入比、医疗保险、吸烟史、饮酒史、BMI、糖尿病、哮喘、抑郁(PHQ-9评分≥10)、睡眠障碍、血清糖化血红蛋白水平、血清白蛋白水平。
采用R 软件4.3.1、风锐统计软件V1.9.2进行相关统计分析。正态分布连续变量以()表示,组间比较采用两独立样本t检验或Welch校正t检验。分类变量以频数(百分比)描述,组间比较采用χ2检验或Fisher精确检验。采用分阶段调整策略构建三个logistic回归模型。按肥胖程度分层探讨25(OH)D与RTIs的关联异质性。采用限制性立方样条(restricted cubic splines,RCS)拟合血清25(OH)D水平与RTIs风险的非线性关联。检验水准α=0.05。
最终纳入21 532名研究对象,非肥胖组12 989例,I级肥胖组4 629例,II级肥胖组2 196例,III级肥胖组1 718例。平均年龄49.8岁,肥胖人群占比39.68%,RTIs患病率为17.5%,各组基线特征分布差异具有统计学意义。血清25(OH)D水平随肥胖程度进展呈梯度下降趋势(P<0.001)。RTIs患病率、血清糖化血红蛋白水平和糖尿病、哮喘、抑郁、睡眠障碍患病率随肥胖程度进展显著升高(P<0.001)。见表1。
血清25(OH)D水平作为连续变量时,在模型1、模型2和模型3中均观察到血清25(OH)D水平与RTIs风险存在显著负相关,OR值分别是0.95 (95% CI: 0.93~0.97)、0.96 (95% CI: 0.94~0.98)、0.97(95% CI: 0.95~0.99)。将血清25(OH)D水平作为分类变量分组后,以血清25(OH)D严重缺乏组为参照,随着血清25(OH)D水平升高,RTIs的发生风险呈递减趋势。模型1、模型2和模型3中充足组RTIs风险下降分别为33%、31%和28%,OR值分别为0.67 (95% CI: 0.58~0.76)、0.69 (95% CI: 0.60~0.78)、0.72(95% CI: 0.62~0.82)。见表2。
基于肥胖状态分层建模显示,当血清25(OH)D作为连续性变量时,其保护效应在非肥胖组和不同程度肥胖组间有减弱趋势。血清25(OH)D水平每升高1 nmol/L,非肥胖组发生RTIs的风险降低5%(OR=0.95, 95% CI: 0.93~0.97),III级肥胖组发生RTIs的风险降低2%(OR=0.98, 95% CI: 0.97~0.99)。将血清25(OH)D水平作为分类变量分组后,以血清25(OH)D严重缺乏组为参照,充足组对肥胖人群RTIs风险的保护作用呈梯度减弱趋势,I级、II级、III级肥胖组OR值分别是0.75 (95% CI:0.62~0.88)、0.78(95% CI:0.70~0.86)、0.82(95% CI:0.74~0.90)。交互作用检验显示,肥胖程度显著改变了血清25(OH)D水平与RTIs的关联(P<0.05)。见表3。
限制性立方样条的曲线拟合结果显示,非肥胖组(P=0.014)与I级肥胖组(P=0.035)的血清25(OH)D水平与RTIs风险呈现显著的非线性关系, 而II级肥胖组(P=0.826)与III级肥胖组(P=0.453)呈线性关系。见图2。
对于存在非线性关系的非肥胖组、I级肥胖组通过logistic拐点模型(分段回归)量化血清25(OH)D水平与RTIs风险的临界值及变化趋势,结果表明非肥胖组25(OH)D浓度在29.96 nmol/L处存在显著拐点(P=0.014),低于此值时浓度升高与风险降低显著相关(OR=0.97, 95% CI: 0.96~0.98),高于此值时无显著关联。I级肥胖组拐点下移至25.97 nmol/L(P=0.035),但拐点后关联趋势不显著。见表4。
本研究基于2009—2018年美国NHANES大样本数据,首次在肥胖分层框架下揭示血清25(OH)D水平与RTIs风险的复杂关联。本研究发现,血清25(OH)D水平与RTIs患病风险呈显著负相关,与既往研究相符[12-13],主要由于血清25(OH)D的活性代谢物1,25-二羟基维生素D[1,25(OH)2D3]能够通过结合维生素D受体(vitamin D receptor ,VDR)显著上调LL-37、β-防御素等抗菌肽的基因表达,破坏细菌细胞膜、中和内毒素,增强对肺炎链球菌等病毒的清除能力[14]。另外,高水平的血清25(OH)D能够促进呼吸道上皮细胞紧密连接蛋白合成,增强细胞间隙连接完整性,强化物理屏障,减少鼻病毒等呼吸道病原体侵入[15]。本研究结果提示肥胖人群血清25(OH)D缺乏比例显著高于非肥胖组,与相关研究一致[16]。此外,本研究发现,随着肥胖程度加重,血清25(OH)D对RTIs的保护效应呈梯度递减趋势,且肥胖分层显著改变了25(OH)D与RTIs的剂量-反应关系:非肥胖组存在29.96 nmol/L的明确保护阈值,I级肥胖组阈值下移至25.97 nmol/L,而II/III级肥胖组则表现为线性关系。
肥胖患者中血清25(OH)D与RTIs风险的弱化关联可能涉及多重机制:(1)脂肪组织隔离效应:维生素D作为脂溶性分子,易蓄积于肥胖人群增生的内脏及皮下脂肪中,导致循环生物利用度下降高达57%[17],有研究表明肥胖与血清25(OH)D水平不足之间存在显著的交互作用[18]。本研究中III级肥胖组25(OH)D均值(55.8 nmol/L)显著低于非肥胖组(68.7 nmol/L),且严重缺乏比例随BMI升高而递增,印证了脂肪组织的“稀释效应”。(2)慢性炎症与免疫抑制:肥胖相关炎症因子(如IL-6、TNF-α)通过激活PI3K/AMPK通路抑制肝脏25-羟化酶活性,减少1,25(OH)2D3生成,进而削弱抗菌肽表达和呼吸道黏膜屏障功能[19-20]。(3)代谢共病的协同作用:肥胖人群维生素D受体表达与胰岛素抵抗指数呈正相关[21],而胰岛素抵抗引发的线粒体功能障碍和氧化应激,可能通过mTOR通路促进呼吸道黏膜损伤和病原易感性[22]。目前关于血清25(OH)D与肥胖人群RTIs关系的研究较少,但既往研究表明,代谢不健康的肥胖人群的维生素D缺乏率最高,且血清25(OH)D水平与胰岛素抵抗呈强负相关,随着内脏脂肪增加,25(OH)D对代谢性疾病的保护作用显著减弱[23]。提示需重点关注肥胖人群因低水平血清25(OH)D导致的呼吸道疾病、代谢性疾病等高发风险,制定分层干预策略。
本研究的发现对肥胖人群RTIs的风险防控具有重要临床和公共卫生意义。非肥胖人群可以将30 nmol/L为阈值进行维生素D筛查与补充,可高效降低RTIs风险。I级肥胖人群需体重管理与维生素D补充联合干预,而II、III级肥胖患者因维生素D生物利用度显著受限,建议联用IL-6抑制剂等抗炎治疗以恢复免疫调节功能。健康公平性优化方面,本研究发现各级肥胖组的RTIs发生率、共病负担及经济劣势(低PIR比例更高)并存。建议在“体重管理年”行动中,社区中心为低收入肥胖人群提供低价维生素D补充剂,将血清25(OH)D检测纳入医保报销范围,缩小健康差距。
本研究存在一定的局限性。受横断面设计的因果限制,仍无法确立因果关系;由于RTIs依赖患者自我报告,可能存在回忆偏倚。此外,尽管调整了人口学、生活方式、血生化指标等混杂因素,但仍可能受遗传因素、心理因素等未控制的潜在混杂因素的影响。
综上所述,本研究依托多周期、大样本、多维度的NHANES数据库,揭示了血清25(OH)D缺乏与肥胖人群RTIs风险增加密切相关,随着肥胖程度越高,血清25(OH)D的保护作用呈梯度递减趋势,肥胖分层显著改变了25(OH)D与RTIs的剂量-反应关系,可通过血清25(OH)D水平筛查、维生素D制剂补充联合运动和饮食调整等方式协同降低肥胖人群RTIs风险。本研究为肥胖人群RTIs科学感染防控和医疗资源优化提供了科学依据,未来仍需前瞻性队列研究进一步验证血清25(OH)D水平与RTIs风险的因果关联,优化肥胖人群RTIs的感染防控体系。
  • 江苏省中医疫病研究中心开放课题(JSYB2024KF19)
  • 江苏省预防医学科研课题(Ym2023104)
  • 江苏省医院协会医院管理创新研究课题(JSYGY-2-2020-95)
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2025年第52卷第23期
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doi: 10.20043/j.cnki.MPM.202506094
  • 接收时间:2025-06-09
  • 首发时间:2026-11-02
  • 出版时间:2025-12-10
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  • 收稿日期:2025-06-09
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江苏省中医疫病研究中心开放课题(JSYB2024KF19)
江苏省预防医学科研课题(Ym2023104)
江苏省医院协会医院管理创新研究课题(JSYGY-2-2020-95)
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    1.南京中医药大学附属医院感染管理办公室,江苏 南京 210029
    2.南京中医药大学第二附属医院中医康复中心

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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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