Concurrent and predictive validity of the Alberta Infant Motor Scale and the Peabody Developmental Motor Scales-2 administered to infants born preterm in Norway

Table 2 Correlation between the AIMS and the PDMS-2 at 6- and 12- months PTA

	Spearman’s rho	p	*ICC (3,2***)	95% CI
PDMS-2 at 6 months
Total motor standard score	0.44	0.001	0.67	0.54 – 0.77
Gross motor standard score	0.50	0.001	0.66	0.52 – 0.76
PDMS-2 Subscale at 6 months
Reflexes	0.48	0.001	0.58	0.41 – 0.70
Stationary	0.57	0.001	0.74	0.63 – 0.82
Locomotion	0.76	0.001	0.82	0.75 – 0.87
Grasping	0.48	0.001	0.67	0.53 – 0.76
Visual motor integration	0.47	0.001	0.63	0.48 – 0.74
PDMS-2 Percentile at 6 months
Percentile total motor	0.44	0.001	0.57	0.40 – 0.70
Percentile gross motor	0.50	0.001	0.63	0.47 – 0.73
PDMS-2 at 12 months
Total motor standard score	0.56	0.001	0.73	0.62 – 0.81
Gross motor standard score	0.67	0.001	0.73	0.61 – 0.80
PDMS-2 Subscale at 12 months
Stationary	0.49	0.001	0.57	0.38 – 0.69
Locomotion	0.80	0.001	0.81	0.73 – 0.86
Object manipulation	0.44	0.001	0.32	0.03 – 0.52
Grasping	0.33	0.001	0.51	0.31 – 0.66
Visual motor integration	0.36	0.001	0.56	0.38 – 0.69
PDMS-2 percentile at 12 months
Percentile total motor	0.57	0.001	0.70	0.58 – 0.79
Percentile gross motor	0.68	0.001	0.78	0.69 – 0.85

ISSN: 1471-2431