| Age | Range | |
Mother | 35.5 ± 4.5 years | 28 - 46 years | |
Infant | 29.1 ± 3.2 months | 24 - 34 months | |
Adult family member |
|
| |
| Own mother | 63.7 ± 5.1 years | 55 - 67 years |
| Partner | 34.5 ± 5.6 years | 24 - 46 years |