Risk Factors for influenza A(H1N1)pdm09 among students, Beijing, China.
To identify risk factors associated with influenza A(H1N1)pdm09 among students in Beijing, China, we conducted a case-control study. Participants (304 case-patients and 608 controls, age range 6-19 years) were interviewed by using a standardized questionnaire. We found that in addition to vaccination, nonpharmaceutical interventions appeared to be protective.
Beijing Center for Disease Control and Prevention, Beijing, People’s Republic of China.
Yang
Y
Zheng
Wei
W
Duan
Peng
P
Yang
Yi
Y
Zhang
Xiaoli
X
Wang
Li
L
Zhang
Surabhi S
SS
Liyanage
Quanyi
Q
Wang
D000293:Adolescent; D016022:Case-Control Studies; D002648:Child; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000453:epidemiology / Q000517:prevention & control* / Q000635:transmission; D008297:Male; D015999:Multivariate Analysis; D058873:Pandemics; D012307:Risk Factors; D012574:Schools; D013334:Students; D011795:Surveys and Questionnaires; D014505:Urban Population; D014611:Vaccination / Q000706:statistics & numerical data*; D055815:Young Adult