Table 2.

RR for ESRD according to birth-related variables, unadjusted and adjusted models: Childbirths 1967 to 2004, ESRD 1980 to 2005, Norway

ParameterUnadjustedAdjusteda
AllMenWomenMenWomen
nRRbPnRRPnRRPRRPRRP
Birth weight
    <10th percentile811.7 (1.4 to 2.2)<0.001461.7 (1.2 to 2.3)0.001351.9 (1.3 to 2.7)<0.0011.8 (1.3 to 2.4)<0.0011.8 (1.2 to 2.7)0.002
    10 to 90th percentile4021.02421.01601.0
    ≥90th percentile390.86 (0.62 to 1.2)0.4220.81 (0.52 to 1.3)0.3170.95 (0.58 to 1.6)0.90.79 (0.51 to 1.2)0.30.96 (0.58 to 1.6)0.9
Birth weight for gestational age
    <10th percentile811.5 (1.2 to 1.9)0.002501.6 (1.1 to 2.1)0.005311.4 (0.92 to 2.0)0.11.6 (1.1 to 2.1)0.0061.3 (0.89 to 1.9)0.2
    10 to 90th percentile3691.02161.01521.01.01.0
    ≥90th percentile380.94 (0.67 to 1.3)0.7210.88 (0.56 to 1.4)0.6171.0 (0.62 to 1.7)0.90.87 (0.55 to 1.4)0.51.0 (0.62 to 1.7)0.9
  • a Adjusted for birth year, maternal preeclampsia, any congenital malformation, multiple delivery, maternal age at birth, maternal marital status and birth order.

  • b Adjusted for gender.