Table 5 Adjusted ¹ mean BMI values (kg/m ² ) and annual change in BMI (ΔBMI per year by age group and birth cohort; test of trend) in individuals 16–71 years, presented according to age, birth cohort and assessment period (longitudinal samples of the Swedish population from 1980/81, 1988/89, 1996/97 and 2004/05) by the adjusted model in Table  1 Women

1910-17

-

-

-

-

-

25.0

-

1918-25

-

-

-

-

24.8

25.3

0.063*

1926-33

-

-

-

24.1

25.2

25.9

0.093*

1934-41

-

-

23.4

24.5

25.3

25.9

0.11*

1942-49

-

22.5

23.7

24.7

25.2

-

0.11*

1950-57

21.3

22.7

23.8

24.7

-

-

0.14*

1958-65

22.3

23.5

24.7

-

-

-

0.15*

1966-73

22.8

24.3

-

-

-

-

0.18*

1974-81

23.0

-

-

-

-

-

0.17*

1982-89

-

-

-

-

-

-

-

ΔBMI age

0.073*

0.077*

0.048*

0.025*

0.015

0.045*

1988/89

1996/97

2004/05