Table 1.

Demographics and Neuropsychological Test Performance of LBW and NBW children from Baseline to 24-months Post-Injury

Table 1
Task		Occasion	S1	S2	S3	S4	S5	LBW (N=5)			NBW (N=9)			Effect Size Cohen’s D	95% CI for Cohen’s D
								Mean	Median	SD	Mean	Median	SD
WoodCock Johnson Letter-Word ID Standard Score		BL	80	85	113	128	123	105.8	113.0	22.0	109.5	106.5	23.2	0.16	[.04, 1.32]
		12 M	89	71	103	117	126	101.2	103.0	22.0	110.8	105.0	18.9	0.48	[.06, 1.69]
		24 M	87	72	121	---	121	100.3	104.0	24.7	116.0	110.0	15.6	0.82	[.12, 3.08]
WoodCock Johnson Calculation Standard Score		BL	---	89	124	118	115	111.5	116.5	15.5	107.1	108.0	18.7	0.25	[.03, 1.68]
		12 M	105	80	102	121	111	103.8	105.0	15.2	98.5	95.5	17.8	0.31	[.05, 2.03]
		24 M	106	71	112	---	107	99.0	106.5	18.9	107.3	107.0	12.5	0.55	[.10, 1.72]
Tower of London Number Solved		BL	10	17	15	16	14	14.4	15.0	2.7	15.3	17.0	5.6	0.18	[.04, 1.86]
		12 M	18	14	20	20	18	18.0	18.0	2.5	18.8	18.5	1.2	0.43	[.06, 1.56]
		24 M	20	20	20	---	16	19.0	20.0	2.0	19.1	20.0	1.2	0.09	[.05, 1.47]
CELF3 Formulated Sentences Scale Score		BL	---	9	9	7	---	8.3	9.0	1.2	9.4	10.0	2.3	0.53	[.06, 3.16]
		12 M	7	9	10	8	8	8.4	8.0	1.1	9.7	9.0	2.1	0.73	[.10, 1.78]
		24 M	5	6	12	---	8	7.8	7.0	3.1	10.7	11.0	2.4	1.11	[.20, 3.05]
CVLT-C Monday List T-Score		BL	42	40	33	47	60	44.4	42.0	10.1	48.9	49.5	8.3	0.50	[.08, 2.05]
		12 M	45	45	26	72	62	50.0	45.0	17.7	59.0	58.5	7.3	0.74	[.06, 2.68]
		24 M	48	33	25	---	48	38.5	40.5	11.4	58.4	62.0	11.8	1.71	[.76, 4.16]
BABS	Composite Standard Score	BL	100	96	115	91	121	104.6	100.0	12.8	97.3	96.0	13.9	0.54	[.05, 1.78]
		12 M	100	86	94	104	122	101.2	100.0	13.5	96.5	93.0	20.4	0.26	[.04, 1.42]
		24 M	95	85	91	---	101	93.0	93.0	6.7	102.7	96.0	17.2	0.67	[.10, 1.63]
	Communication Standard Score	BL	89	95	123	97	121	105.0	97.0	15.8	101.9	100.0	17.2	0.19	[.03, 1.45]
		12 M	87	81	114	100	125	101.4	100.0	18.3	99.6	95.0	20.8	0.09	[.04, 1.34]
		24 M	85	84	115	---	110	98.5	97.5	16.3	105.7	101.0	15.9	0.45	[.06, 1.77]
	Daily Living Standard score	BL	109	99	107	86	123	104.8	107.0	13.6	99.3	103.0	12.4	0.43	[.04, 1.51]
		12 M	108	91	85	106	125	103.0	106.0	15.7	96.9	94.0	18.8	0.35	[.03, 1.49]
		24 M	102	90	76	---	105	93.3	96.0	13.2	98.3	96.0	10.1	0.45	[.07, 1.97]
	Socialization Standard score	BL	104	98	104	98	102	101.2	102.0	3.0	93.6	90.0	8.8	1.03	[.39, 2.32]
		12 M	106	96	89	104	99	98.8	99.0	6.8	95.6	99.0	10.5	0.34	[.04, 1.18]
		24 M	104	92	91	---	88	93.8	91.5	7.0	102.6	98.0	13.6	0.75	[.13, 1.99]
Demographics
Age at Injury (years)			5.1	6.9	12	7.1	5.2	7.3	6.9	2.7	7.78	7.32	2.66	.09
GCS			15	8	14	15	14	13.2	14.0	3.0	11.56	15.0	5.10	−.36
Birth Weight (lb)			3.9	4.5	5.4	5.4	5.4	4.9	5.38	0.7	7.42	7.47	.57	4.55

^*LBW = Low Birth Weight group; NBW = Normal Birth Weight Group; SD = Standard Deviation; CVLT-C = California Verbal Learning Test –Children’s version; CELF-III = Clinical Evaluation of Language Fundamentals –3^rd Edition; VABS = Vineland Adaptive Behavior System.