title: [Adenovirus infection in hospitalized children with pneumonia in Guangzhou from 2005 to 2007].
abstract: OBJECTIVE
  To understand the characteristics of adenovirus infection in hospitalized children with pneumonia in Guangzhou area.
  
  
  METHODS
  The infection rate, hospitalization time and hospitalization expenses of adenovirus-infected hospitalized children with pneumonia in Guangzhou area from 2005 to 2007 were analyzed.
  
  
  RESULTS
  The total adenovirus infection rate was 6.04% in these children, with a male to female ratio of 1.47:1, showing significantly higher infection rate in female (7.92%) than in male patients (5.21%, P<0.05). The hospital stay and hospitalization costs between male and female children showed no significant difference (P>0.05). Adenovirus-infected children from birth to six years old accounted for 90.50% of the total adenovirus-infected children, and the infection rate in 0 to 1-year-old children (3.71%) was significantly lower than that in elder children (P<0.05). Although the infection rate in winter (8.44%) was significantly higher than that in the other seasons (P<0.05), the cases from March to August accounted for 60.11% of the total infected cases. Furthermore, the infection rate in 2007 (4.31%) was significantly lower than that in 2005 and 2006 (7.11% and 6.71%, respectively, P<0.05).
  
  
  CONCLUSIONS
  Adenovirus infection is an important pathogen in hospitalized children with pneumonia in Guangzhou area, and the infection rates differed between gender, age, season and the years.
authors.affiliation: Department of Pediatrics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China. xjamao@tom.com
authors.forename: Xiao-jian
authors.initials: XJ
authors.lastname: Mao
authors.forename: Xin-hua
authors.initials: XH
authors.lastname: Qian
mesh_terms: D000258:Adenovirus Infections, Human / Q000191:economics / Q000453:epidemiology*; D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D017281:Cost of Illness; D005260:Female; D006760:Hospitalization; D006801:Humans; D015994:Incidence; D007223:Infant; D008297:Male; D011014:Pneumonia / Q000191:economics / Q000821:virology*; D012621:Seasons; D012737:Sex Factors