title: Concordance of sibling's recall of measures of childhood socioeconomic position.
abstract: BACKGROUND
  Studies of socioeconomic determinants of health often rely on recalled information on childhood socioeconomic position, despite limited evidence of the validity of this information. This study examined concordance between siblings of recalled measures of childhood socioeconomic position.
  
  
  METHODS
  This cross-sectional study examined reports by 1280 adult sibling pairs in the National Survey of Midlife Development in the United States of seven measures of childhood socioeconomic position: father's occupation (in 9 categories), father having a professional occupation, father being a supervisor at work, father's education level, mother's education level, receipt of welfare payments, and subjective appraisal of being better or worse off financially than others.
  
  
  RESULTS
  Concordance was high for father's professional occupation (0.97; 95% confidence interval (CI) 0.96, 0.98), father's occupation in 9 categories (0.76; 95% CI 0.73, 0.80), and receipt of welfare payments (0.95; 95% CI 0.93, 0.97). Concordance was lower for father's and mother's education level, and lowest for subjective appraisal of socioeconomic position (0.60; 95% CI 0.57, 0.64). Concordance of parental education was lower for sibling pairs with high school educations or less.
  
  
  CONCLUSIONS
  Concordance of recalled measures of childhood socioeconomic position by siblings is generally but not uniformly high.
authors: Intramural Research Program, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA. wardm1@mail.nih.gov
authors: Michael M
authors: MM
authors: Ward
mesh_terms: D000328:Adult; D002648:Child; D003430:Cross-Sectional Studies; D003625:Data Collection / Q000379:methods / Q000706:statistics & numerical data; D004522:Educational Status; D005220:Fathers; D005260:Female; D006801:Humans; D008297:Male; D011939:Mental Recall; D008875:Middle Aged; D009035:Mothers; D009790:Occupations; D010287:Parent-Child Relations; D015203:Reproducibility of Results; D012801:Sibling Relations; D035781:Siblings; D012923:Social Class; D012959:Socioeconomic Factors; D014427:Twins; D014481:United States