title: [Study on the risk factors of measles among the 8-month-olds and children≥15 years of age in Gansu province].
abstract: OBJECTIVE
  To understand the risk factors of measles among babies under 8-months-old and people ≥15 years old, in Gansu province.
  
  
  METHODS
  Laboratory-confirmed measles cases were divided into two groups among children below 8-months-old and those ≥15 year olds. Descriptive epidemiology and 1:3 case control study were conducted to find out those related risk factors as:hospital exposure, contact with measles cases, vaccination, history of measles etc. so as to determine the risk factors and appropriate control measures.
  
  
  RESULTS
  Histories of hospital exposure, contact with measles cases and travelling to other cities were risk factors for measles among babies younger than 8-months and people ≥15 year olds. Vaccination appeared a protective factor for people ≥15 years of age. From 42 cases and 126 controls, through multivariate analysis, results showed that hospital exposure was the only significant factor ( OR = 29.23, 95%CI:2.82-302.89)for those babies younger than 8-months. Factors as hospital exposure and travelling among cities for 7-21 days before being infected, were with significant importance ( OR = 5.15, 95% CI:2.28-11.63; OR = 5.48, 95%CI:1.38-21.69)for people ≥15 years of age, according to the observation from 74 cases and 222 controls.
  
  
  CONCLUSIONS
  In order to reduce the incidence of measles among babies under 8-month-old and people ≥15 years old, efforts on control of nosocomial infection should be strengthened, while the routine immunization coverage need to be increased for the children at higher risks, to reduce the source of infection.
authors.affiliation: Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Ningjing
authors.initials: N
authors.lastname: Zhang
authors.affiliation: Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Xiaoshu
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Fu
authors.affiliation: Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Jing
authors.initials: J
authors.lastname: An
authors.affiliation: Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Na
authors.initials: N
authors.lastname: Jin
authors.affiliation: Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China.
authors.forename: Bingling
authors.initials: B
authors.lastname: Zhang
authors.affiliation: Email: lihui9208@163.com.
authors.forename: Hui
authors.initials: H
authors.lastname: Li
mesh_terms: D000293:Adolescent; D016022:Case-Control Studies; D002681:China / Q000453:epidemiology; D003428:Cross Infection; D006801:Humans; D015994:Incidence; D007223:Infant; D008457:Measles / Q000175:diagnosis / Q000453:epidemiology* / Q000517:prevention & control; D008458:Measles Vaccine / Q000008:administration & dosage; D012307:Risk Factors; D014611:Vaccination / Q000706:statistics & numerical data
chemical_list: D008458:Measles Vaccine