Table 7.

Multiple regression analysis for modelling breast milk minerals.

Breast Milk Minerals (Dependent Variable)	Maternal Characteristics (Independent Variables)	ß	ß SE	ß C.I. (95%)	p	Adjusted R2	ANOVA for the Model (p)
Na	Constant	2.77	0.53	1.72–3.82	0.000	0.231	0.000
	Lactating time	0.20	0.06	0.09–0.31	0.001
	Newborn sex	0.38	0.13	0.13–0.64	0.003
	BMI	0.04	0.02	0.01–0.07	0.022
K	Constant	402.49	62.70	277.50–527.49	0.000	0.170	0.000
	Lactating time	−25.59	6.66	−38.85–−12.32	0.000
	Maternal age	5.11	1.84	1.44–8.77	0.007
Ca	Constant	359.64	31.32	297.22–422.06	0.000	0.072	0.011
	Lactating time	−16.00	6.15	−28.26–−3.75	0.011
Ca/P	Constant	3.17	0.33	2.52–3.83	0.000	0.099	0.006
	Lactating time	−0.18	0.06	−0.31–−0.06	0.006
Mg	Constant	19.08	6.61	5.91–32.26	0.005	0.047	0.035
	Maternal age	0.40	0.19	0.03–0.77	0.035
Fe	Constant	0.15	0.03	0.09–0.22	0.000	0.046	0.047
	AD score	0.05	0.02	0.00–0.10	0.047
Se	Constant	−14.31	7.61	−29.52–0.90	0.065	0.148	0.005
	BMI	0.60	0.21	0.19–1.01	0.005
	MD score	4.88	2.30	0.28–9.47	0.038
	Newborn sex	3.01	1.48	0.06–5.97	0.046