title: Parental age and child growth and development: child health check-up data.
abstract: BACKGROUND
  The aim of the present study was to determine whether parental age has any influence on child health.
  
  
  METHODS
  Well-baby check-up data at 1 month and at 12 months of age were used. The trends of parental age in association with growth measurements, incidence of physical and developmental abnormalities, occurrence of low birthweight, and maternal history of spontaneous abortion were analyzed.
  
  
  RESULTS
  Associations between increasing paternal age and incidence of psychomotor developmental delay at 12 months, increasing paternal and maternal age and increasing birthweight, and increasing parental age and higher incidence of history of spontaneous abortion were found. The incidence of low-birthweight infants was significantly decreased with increasing paternal age.
  
  
  CONCLUSIONS
  Not only increasing maternal age but also increasing paternal age have influences on child development and growth in the general population.
authors.affiliation: Department of Pediatrics, Graduate School of Medical Sciences, Kyushu UniversityDepartment of Medical Information Science, Kyushu University HospitalFukuoka City Medical Association, Fukuoka, Japan.
authors.forename: Mariko
authors.initials: M
authors.lastname: Iwayama
authors.affiliation: Department of Pediatrics, Graduate School of Medical Sciences, Kyushu UniversityDepartment of Medical Information Science, Kyushu University HospitalFukuoka City Medical Association, Fukuoka, Japan.
authors.forename: Ryutaro
authors.initials: R
authors.lastname: Kira
authors.affiliation: Department of Pediatrics, Graduate School of Medical Sciences, Kyushu UniversityDepartment of Medical Information Science, Kyushu University HospitalFukuoka City Medical Association, Fukuoka, Japan.
authors.forename: Naoko
authors.initials: N
authors.lastname: Kinukawa
authors.affiliation: Department of Pediatrics, Graduate School of Medical Sciences, Kyushu UniversityDepartment of Medical Information Science, Kyushu University HospitalFukuoka City Medical Association, Fukuoka, Japan.
authors.forename: Yasunari
authors.initials: Y
authors.lastname: Sakai
authors.affiliation: Department of Pediatrics, Graduate School of Medical Sciences, Kyushu UniversityDepartment of Medical Information Science, Kyushu University HospitalFukuoka City Medical Association, Fukuoka, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Torisu
authors.affiliation: Department of Pediatrics, Graduate School of Medical Sciences, Kyushu UniversityDepartment of Medical Information Science, Kyushu University HospitalFukuoka City Medical Association, Fukuoka, Japan.
authors.forename: Masafumi
authors.initials: M
authors.lastname: Sanefuji
authors.affiliation: Department of Pediatrics, Graduate School of Medical Sciences, Kyushu UniversityDepartment of Medical Information Science, Kyushu University HospitalFukuoka City Medical Association, Fukuoka, Japan.
authors.forename: Yoshito
authors.initials: Y
authors.lastname: Ishizaki
authors.affiliation: Department of Pediatrics, Graduate School of Medical Sciences, Kyushu UniversityDepartment of Medical Information Science, Kyushu University HospitalFukuoka City Medical Association, Fukuoka, Japan.
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Nose
authors.affiliation: Department of Pediatrics, Graduate School of Medical Sciences, Kyushu UniversityDepartment of Medical Information Science, Kyushu University HospitalFukuoka City Medical Association, Fukuoka, Japan.
authors.forename: Toshimichi
authors.initials: T
authors.lastname: Matsumoto
authors.affiliation: Department of Pediatrics, Graduate School of Medical Sciences, Kyushu UniversityDepartment of Medical Information Science, Kyushu University HospitalFukuoka City Medical Association, Fukuoka, Japan.
authors.forename: Toshiro
authors.initials: T
authors.lastname: Hara
mesh_terms: D000328:Adult; D001724:Birth Weight; D002658:Developmental Disabilities / Q000209:etiology*; D005260:Female; D006128:Growth; D006801:Humans; D007223:Infant; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D010290:Parents; D055815:Young Adult