Sex distribution of newborns to mothers with systemic lupus erythematosus. Academic Article uri icon


  • We studied the association between birth weight and blood pressure in couples to adjust for the social conditions that couples share. We randomly selected 1000 cohabiting couples, 50 to 65 years of age, from the Danish cohort study Diet, Cancer and Health. Using the place and date of birth, and names as identifiers, we located each person's birth record in the state archive; these midwife records include data on birth weight. If we could not match by one surname (maiden name) and place of birth for both partners, the couple was excluded from further analysis. We extracted data on midlife systolic and diastolic blood pressure (SBP and DBP) from the health examination at recruitment to the cohort study. Data were analyzed in a mixed model of 2 linear regression equations allowing for dependence between measurements from spouses. 6 Analyzing husband and wife jointly allows for adjustment …

publication date

  • May 1, 2006