Effect of lullaby on volume, fat, total protein and albumin concentration of breast milk in premature infants’ mothers admitted to NICU: a randomized controlled trial

Table 5 Evaluation of breast milk compositions after intervention with adjusted for baseline values and other variables in the study

Variable	F, df, P value (Effect of intervention)	P value (Basic value)	Adjusted R Squared	Effect size	Observed power
Volume (ml)	29.32, 2, < 0.001^a	< 0.001	0.44	0.38	1.00
Volume (ml)	25.36, 2, < 0.001^b	< 0.001	0.42	0.36	1.00
Triglycerides (mg/DL)	14.73, 2, < 0.001^a	< 0.001	0.80	0.24	0.99
Triglycerides (mg/DL)	16.20, 2, < 0.001^b	< 0.001	0.89	0.26	0.99
Cholesterol (mg/DL)	65.09, 2,< 0.001^a	< 0.001	0.95	0.58	1.00
Cholesterol (mg/DL)	67.57, 2, < 0.001^b	< 0.001	0.96	0.59	1.00
Albumin (mg/DL)	36.46, 2, < 0.001^a	< 0.001	0.74	0.43	1.00
Albumin (mg/DL)	32.46, 2, < 0.001^b	< 0.001	0.74	0.41	1.00
Total protein (mg/DL)	38.46, 2, < 0.001^a	< 0.001	0.80	0.45	1.00
Total protein (mg/DL)	34.67, 2, < 0.001^b	< 0.001	0.79	0.43	1.00

^a Based on ANCOVA model (the included variables were: basic value of dependent variable and group type)
^b Based on ANCOVA model (the included variables were: basic value of dependent variable, group type, Maternal age, Birth weight, Gestational age and Maternal weight)

ISSN: 1746-4358