Table 1 Developmental milestones (specified in months) from the Copenhagen Perinatal Cohort
From: Predictors of early life milestones: Results from the Copenhagen Perinatal Cohort
Composite milestone means: | Developmental milestones | Description | N | Mean (SD) | Range |
|---|---|---|---|---|---|
LANGUAGE | 1. ‘Turning head in the right direction’ | The child can turn his/her head in the right “direction” if you e.g. say: where is “mom”, “dad”, “the light” etc. | 2045 | 12.3 (4.6) | 3–30 |
2. ‘Naming objects/animals’ | The child can name a few, familiar objects or animals with their true names | 2695 | 18.1 (5.5) | 9–34 | |
3. ‘Naming objects/animals in pictures’ | The child can name a few, familiar objects or animals in pictures with their true names | 2662 | 20.0 (5.6) | 10–36 | |
4. ‘Forming a sentence’ | The child can put at least three words together to form a “sentence” | 2827 | 22.9 (5.2) | 12–36 | |
5. ‘Speaking properly’ | The child can speak properly | 2201 | 28.6 (5.1) | 16–36 | |
6. ‘Sharing experiences’ | The child can talk about what it has experienced | 2892 | 28.9 (4.6) | 18–36 | |
WALKING | 7. ‘Walking’ | The child can walk around unassisted in the living room | 3815 | 13.8 (2.7) | 9–24 |
8. ‘Climbing stairs’ | The child can climb stairs unassisted | 3323 | 21.1 (5.3) | 11–36 | |
EATING | 9. ‘Drinking from cup’ | The child can drink from a cup without assistance | 3370 | 17.5 (4.6) | 7–30 |
10. ‘Eating with spoon’ | The child can eat with a spoon without assistance | 3407 | 20.1 (5.0) | 10–36 | |
DRESSING | 11. ‘Putting on socks’ | The child can put socks on by itself | 2577 | 28.9 (5.4) | 14–36 |
12. ‘Doing buttons’ | The child can do buttons | 2536 | 29.9 (5.0) | 18–36 | |
SOCIAL INTERACTION | 13. ‘Building tower’ | The child can build a tower of 4–5 ordinary rectangular blocks | 2575 | 20.5 (5.8) | 10–36 |
14. ‘Helping at home’ | The child shows interest in helping at home by imitating parents (e.g. by laying the table or other domestic tasks) | 3446 | 24.5 (5.6) | 13–36 | |
15. ‘Picking up things’ | The child can pick up things in the apartment if requested | 3304 | 22.6 (5.7) | 12–36 | |
16. ‘Playing with peers’ | The child plays with children of the same age (e.g. rolling a ball to each other) | 2866 | 20.8 (5.8) | 10–36 | |
17. ‘Distinguishing boys and girls’ | The child can distinguish between boys and girls | 2283 | 27.0 (5.5) | 15–36 | |
TOILET TRAINING | 18. ‘Bowel control’ | The child can tell when it needs to defecate | 3493 | 24.9 (6.0) | 12–36 |
19. ‘Dry during the day’ | The child is dry during the day and tells when it needs to go to the toilet | 3514 | 25.6 (5.9) | 12–36 | |
20. ‘Dry during the night’ | The child is dry during the night | 2963 | 26.2 (6.3) | 12–36 |