title: Socioeconomic status and other characteristics in childhood leukemia.
abstract: BACKGROUND
  Leukemia is the most prevalent childhood cancer, and Acute Lymphoblastic Leukemia (ALL) constitutes 75% of all cases. Some epidemiological studies have shown a relationship between socioeconomic status (SES) and some childhood cancers. In the present study, an attempt was made to assess socioeconomical status in a case-control study.
  
  
  METHODS
  In 2010, a case-control study was conducted on 100 cases of acute lymphoblastic leukemia aged 1 to14 years in Department of Pediatric Oncology of Dr.Sheikh Hospital in Mashhad - Iran and matched age and sex with 400 healthy controls. Data was collected by interview using a questionnaire. Ninety five percent confidence intervals were used to measure the relationship between childhood Acute Lymphoblastic Leukemia and parental education, income status, father's job (Socioeconomic status), number of children, birth score and paternal smoking.
  
  
  RESULTS
  There was a significant difference in parental education level, income status, and number of children, birth score, father's job and paternal smoking between two groups. Regression analysis showed that the risk of childhood ALL associated with paternal smoking, and father's high risk job. Fifty percent cases and thirty five percent of control groups located in upper lower and lower middle class of socioeconomic status, respectively. There is a meaningful different between socioeconomic status in two groups. But the risk of childhood ALL did not associate with socioeconomic status.
  
  
  CONCLUSIONS
  The results suggest that paternal smoking and father's high risk job are related to risk of childhood leukemia. It should be considered for planning support.
authors.affiliation: Department of Nursing, Quchan Branch, Islamic Azad University, Quchan, Iran.
authors.forename: H
authors.initials: H
authors.lastname: Hashemizadeh
authors.affiliation: Dr. Sheikh Hospital, Mashhad University of Medical Sciences, Mashhad,Iran.
authors.forename: H
authors.initials: H
authors.lastname: Boroumand
authors.affiliation: Department of Midwifery, Quchan Branch, Islamic Azad University, Quchan, Iran.
authors.forename: R
authors.initials: R
authors.lastname: Noori
authors.affiliation: Dr. Sheikh Hospital, Mashhad University of Medical Sciences, Mashhad,Iran.
authors.forename: M
authors.initials: M
authors.lastname: Darabian
keywords: Child; Leukemia; Social Class