Table 1 Years of birth and parental age at birth of offspring by categories of offspring zBMI at age 7 years.
Group | Characteristic | Categories of offspring zBMI at age 7 | Overall | ||||||
|---|---|---|---|---|---|---|---|---|---|
< − 2 | − 2 to > − 1 | − 1 to < − 0.5 | − 0.5 to < 0.5 | 0.5 to < 1 | 1 to < 2 | ≥ 2 | All offspring | ||
Offspring (n = 17,715 girls, n = 18,382 boys) | Birth year | 19702 | 1969 | 1969 | 1970 | 1972 | 1973 | 1978 | 1968 (1962–1985)1 |
Zheight at age 7 | − 0.462 | − 0.29 | − 0.20 | − 0.10 | 0.08 | 0.29 | 0.71 | − 0.03 | |
Mothers (n = 19,869) | Birth year | 19452 | 1944 | 1944 | 1945 | 1946 | 1948 | 1951 | 1944 (1937–1952)1 |
Age at birth (y) | 252 | 25 | 25 | 25 | 25 | 25 | 26 | 24 (21–28)1 | |
Zheight at age 7 | − 0.352 | − 0.29 | − 0.22 | − 0.18 | − 0.11 | − 0.02 | 0.08 | − 0.16 | |
Fathers (n = 16,228) | Birth year | 19442 | 1943 | 1944 | 1944 | 1946 | 1947 | 1951 | 1943 (1937–1952)1 |
Age at birth (y) | 272 | 27 | 27 | 27 | 27 | 28 | 28 | 26 (23–30)1 | |
Zheight at age 7 | − 0.342 | − 0.24 | − 0.18 | − 0.15 | − 0.11 | − 0.04 | 0.05 | − 0.14 | |