Table 1 Characteristics of mothers and their children with available data on breastfeeding by the children's birth year
| Â | 1983 (n = 394) | 1989 (n = 418) |
|---|---|---|
Maternal characteristics | Â | Â |
Age at childbirth, n (%) | Â | Â |
   <25 | 85 (21.6) | 60 (14.4) |
   25–34 | 212 (53.8) | 217 (51.9) |
   35+ | 47 (11.9) | 43 (10.3) |
   Unknown | 50 (12.7) | 98 (23.4) |
Education, n (%) | Â | Â |
   Basic | 76 (19.3) | 60 (14.4) |
   High school | 139 (35.3) | 222 (53.1) |
   University | 160 (40.6) | 120 (28.7) |
   Unknown | 19 (4.8) | 16 (3.8) |
Smoking at childbirth, n (%) | Â | Â |
   Non-smokers | 201 (51.0) | 182 (43.5) |
   Smokers | 145 (36.8) | 140 (33.5) |
   Unknown | 48 (12.2) | 96 (23.0) |
Parents' BMI | Â | Â |
Current maternal BMI, M (SD) | 24.1 (3.9) | 23.8 (3.9) |
Current paternal BMI, M (SD) | 25.7 (3.0) | 25.6 (3.2) |
Children's characteristics | Â | Â |
Gender, n (%) | Â | Â |
   Boys | 176 (44.7) | 208 (49.8) |
   Girls | 218 (55.3) | 210 (50.2) |
Age, M (SD) | 15.5 (0.4) | 9.6 (0.3) |
Overweight, n (%) | 43 (10.9) | 64 (15.3) |
BMI, kg/m2, M (SD) | 20.7 (2.6) | 17.4 (2.5) |
Waist circumference, cm, M (SD) | 71.2 (6.8) | 60.8 (6.4) |
Sum of five skin fold measurements, mm, M (SD) | 53.0 (21.2) | 46.2 (21.2) |