Table 4.

Multiple linear regression analysis of perceived milk supply (N = 237)

Variable	n	%	β	SE	Standardized β	p value
Intercept			89.9	5.37		< 0.0001
Employment status
Not working	173	73.0	Reference
Working	64	27.0	−0.96	1.36	−0.04	0.48
Parity
Primiparous	95	40.1	Reference
Multiparous	142	59.9	0.89	1.21	0.04	0.46
Rooming-in
No	86	36.3	Reference
Yes	151	63.7	1.69	1.25	0.08	0.18
Skin-to-skin contact
No	71	30.0	Reference
Yes	166	70.0	3.20	1.31	0.15	0.02
Breastfeeding self-efficacy
≤ 50	31	13.1	Reference
> 50	206	86.9	10.78	1.81	0.37	< 0.0001
Infant sucking behavior
Negative	37	15.6	Reference
Positive	200	84.4	2.10	1.63	0.08	0.20

Note: SE standard error