Table 3

Back transformed mean transformed weight (BTM) and difference for English childen in 1972 and 1994 by age

Age (years)19721994Difference in BTM weightApproximate CI
NoBTM weight (kg)NoBTM weight (kg)
Boys
 556619.3146119.430.13(−0.21 to 0.46)
 660821.5944221.740.15(−0.21 to 0.51)
 764823.8349124.340.51(0.10 to 0.91)
 861426.4246127.160.75(0.25 to 1.24)
 960528.5738730.832.26(1.64 to 2.88)
 1059332.3040534.011.71(0.94 to 2.48)
Girls
 557118.8344218.930.10(−0.24 to 0.44)
 658421.1644121.530.37(−0.03 to 0.76)
 762223.4645124.380.93(0.47 to 1.39)
 857126.0440226.910.87(0.26 to 1.48)
 953729.2937130.941.65(0.88 to 2.42)
 1057732.6443234.471.84(0.99 to 2.68)