Table 2. Mean Bayley Scales of Infant and Toddler Development, Third Edition (BSID-III) Composite and Subscale Scores in the 4 Intervention Groups and Mean Differences .

BSID-III domains	SC group (n = 24) [Reference]	MT at NICU with postdischarge SC group (n = 29)			SC at NICU and postdischarge MT group (n = 26)			MT at both NICU and postdischarge group (n = 31)			No. of participants
	Mean scores (SD)	Mean scores (SD)	Mean difference (95% CI)a	P value	Mean scores (SD)	Mean difference (95% CI)	P value	Mean scores (SD)	Mean difference (95% CI)	P value
Language composite	97.25 (12.61)	93.52 (22.50)	−2.36 (−12.60 to 7.88)	.65	98.73 (18.10)	2.65 (−7.94 to 13.23)	.62	91.06 (21.41)	−3.77 (−13.97 to 6.43)	.47	110
Expressive subscale	9.00 (2.50)	8.38 (3.53)	−0.41 (−2.13 to 1.31)	.64	9.38 (3.40)	0.54 (−1.24 to 2.31)	.55	8.26 (3.51)	−0.34 (−2.05 to 1.37)	.69	110
Receptive subscale	10.04 (2.22)	9.34 (4.48)	−0.49 (−2.48 to 1.50)	.63	10.12 (3.13)	0.28 (−1.78 to 2.33)	.79	8.65 (4.19)	−1.06 (−3.03 to 0.92)	.29	110
Cognitive composite	102.71 (13.27)	98.79 (20.77)	−3.04 (−14.07 to 7.57)	.58	104.81 (20.17)	3.49 (−7.89 to 14.47)	.54	98.75 (24.76)	−2.84 (−13.85 to 7.56)	.60	111
Motor composite	97.17 (16.24)	94 (18.18)	−3.25 (−12.54 to 6.04)	.49	101.04 (17.72)	1.97 (−7.56 to 11.50)	.68	89.60 (17.91)	−7.38 (−16.66 to 1.88)	.12	108
Gross motor subscale	8.88 (2.68)	8.07 (2.57)	−0.95 (−2.58 to 0.69)	.25	9.46 (3.59)	0.21 (−1.46 to 1.89)	.80	7.77 (3.26)	−1.29 (−2.92 to 0.34)	.12	108
Fine motor subscale	10.08 (3.41)	9.86 (3.94)	−0.08 (−2.00 to 1.85)	.94	10.85 (3.67)	0.56 (−1.41 to 2.53)	.57	8.84 (3.44)	−1.01 (−2.92 to 0.90)	.29	109

Abbreviations: MT, music therapy; NICU, neonatal intensive care unit; SC, standard care.

^a Results from linear mixed-effects models with site as random effect.