Table 5

Estimates from multilevel models showing mean differences in grip strength (kg) by birth weight and childhood cognition in 1211 Medical Research Council National Survey of Health and Development women (2709 observations), adjusted for age term and standardised adult height and then additionally adjusted for each set of adult factors in turn

Birth weight (kg)Birth weight×age (year)Childhood cognition (SD)
Reg. coeff.95% CIP valueReg.
95% CIP valueReg.
95% CIP value
Adjusted for age, adult height, age at first standing and mutually adjusted1.250.34 to 2.160.007−0.08−0.15 to − to 0.710.03
Additional adjustments in turn
 BMI*1.260.35 to 2.170.007−0.08−0.15 to − to 0.700.04
 Health conditions 53 years*
  Health conditions×age
1.270.37 to 2.190.006−0.09−0.15 to −−0.07 to 0.610.1
 Qualifications*1.220.31 to 2.130.008−0.08−0.15 to −−0.4 to 0.480.9
 Verbal memory*
  Verbal memory×age
1.290.38 to 2.200.005−0.09−0.16 to −0.020.0080.22−0.17 to 0.610.3
 Own social class1.230.32 to 2.130.008−0.09−0.15 to −−0.10 to 0.650.1
 Smoking and physical activity*1.370.47 to 2.260.003−0.09−0.16 to −0.020.0090.30−0.04 to 0.650.08
  • *Time varying covariates.

  • BMI, body mass index.