| 1st survey | 2nd survey | 3rd survey | 4th survey | ||
| Caregivers | › | › | › | › | |
| Members living together | › | › | › | › | |
| Visits to grandparents' houses | › | ||||
| Sensitivity to the dwelling | › | ||||
| Moving & extension to houses | › | ||||
| Dwelling type | › | ||||
| Housing environment | › | ||||
| Status of pets | › | ||||
| Parents | |||||
| Employment status | › | › | › | ||
| Company size | › | ||||
| Occupation | › | ||||
| Status of leave of absence due to child care | › | ||||
| Working hours | › | › | › | ||
| Commuting time | › | ||||
| Fathers'absence from home due to employment reasons | › | › | › | ||
| Educational background | › | ||||
| Division of childcare and household chores | › | › | › | ||
| Fathers on their day off | › | ||||
| Eating habits | › | ||||
| Time spent with children | › | ||||
| Smoking | › | ||||
| Income | › | › | › | ||
| Monthly expenditure on child rearing | › | › | › | › | |
| Particular points of care during child rearing | › | ||||
| Satisfactions from having/rearing the child | › | › | › | › | |
| Burdens of having/rearing the child | › | › | › | › | |
| Concerns and worries about child rearing | › | › | |||
| Whom to ask for advice about child rearing | › | › | › | › | |
| Reason(s) for not asking for advice | › | › | |||
| Ideal form of child in growing up | › | ||||
| Breast milk | › | ||||
| About the child | |||||
| Rules about meals | › | ||||
| Particular points of care concerning health | › | ||||
| Concerns about eating behaviors | › | › | |||
| Rules on giving snacks | › | ||||
| Discipline status | › | ||||
| Response to bad behavior | › | ||||
| Wakeup time | › | › | |||
| Bedtime | › | › | › | ||
| Nap status | › | ||||
| Whom to play with | › | ||||
| Favorite play | › | › | |||
| Hours spent watching TV | › | › | |||
| Hours playing computer games | › | ||||
| Usual play areas | › | ||||
| Friends of similar age in the neighborhood to play with | › | ||||
| Playing with other children | › | ||||
| Character | › | ||||
| Paid lessons | › | › | |||
| Things the child could do presently | › | ||||
| Illnesses and injuries | › | › | › | ||
| Accidents | › | ||||
| Height and weight | › | › | › | ||