title: Risk factors of low birth weight and effect of them on growth pattern of children up to sixth months of life: A cross-sectional study.
abstract: BACKGROUND
  Children are more risk-prone group of the population and low birth weight (LBW) is the leadingcause of newborns' mortality and morbidity. LBW is defined as child's birth weight lower than 2500 g. Many maternal and fetal factors are determined as risk factors of LBW. This study tries to detect related factors to LBW and effect of them on children's growth pattern up to sixth month of life in Health centers of Urmia city, Iran.
  
  
  METHODS
  A cross-sectional study was carried out in Urmia city using registered data from mothers' documents. All related data such age and weight of infants, mothers' age, gestational age (GA) at the time of delivery, time gap between two pregnancies, past history of abortion, prenatal care history, systemic and underlying diseases, hemoglobin of mothers during pregnancy, and pattern of infant's growth up to sixth month of age were registered in a questionnaire. All registered data were transferred to SPSS 15 software and analyzed.
  
  
  RESULTS
  Mean ± SD of birth weight was 3071 ± 625.66 g. There was a significant relationship between birth weight and mother's age (P < 0.001) and weight (P < 0.001). Children of mothers younger than 18 years had much birth weights. There was a significant relationship between birth weight and GA during delivery (P < 0.001). Children of preterm labor had lower birth weights. In twins, LBW was more prevalent (P < 0.001).
  
  
  CONCLUSIONS
  Our results show that LBW is related to multiple causes and that most of them are preventable with educational programs and also strict and regular prenatal care. Decreasing incidence of LBW children can be achieved by cooperation between different parts of health and clinical systems.
authors.affiliation: Social Determinants of Health Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
authors.forename: Mohammad Hossein
authors.initials: MH
authors.lastname: Baghianimoghadam
authors.affiliation: Department of Orthopedics Surgery, Babol University of Medical Sciences, Babol, Iran.
authors.forename: Behnam
authors.initials: B
authors.lastname: Baghianimoghadam
authors.affiliation: Social Determinants of Health Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
authors.forename: Nahid
authors.initials: N
authors.lastname: Ardian
authors.affiliation: Department of Orthopedics Surgery, Babol University of Medical Sciences, Babol, Iran.
authors.forename: Elham
authors.initials: E
authors.lastname: Alizadeh
keywords: Children; growth pattern; low birth weight