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Table 3 Mean and standard deviation (SD) in the areas of Ages and Stages Questionnaire 6-months old

From: Examination of the cut-off scores determined by the Ages and Stages Questionnaire in a population-based sample of 6 month-old Norwegian infants

 

Mean (SD)/N

Mean (SD)

 

Dataset

N.ref

US ref

N = 633

Communication

44.1 (9.5)/1048 ■

46.9 (9.2)/169

48.9 (9.6)

Gross motor

36.9 (11.7)/1052

40.4 (10.8)/169

45.6 (11.7)

Fine motor

40.1 (13.2)/1044

48.8 (10.4)/166

48.9 (11.9)

Problem solv.

50.8 (9.6)/1047

52.8 (8.3)/169

50.4 (11.4)

Personal social

47.2 (11.0)/1050 ■

48.7 (10.3)/169

48.3 (11.5)

Total

219.1 (36.4)/1035

237.8 (32.8)/166

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  1. American and Norwegian reference (N.ref) samples and the present dataset
  2. : Skewed distribution