Table 3.

Bivariate and Multivariate Linear Regression for the relationships between Postdelivery Maternal Hemoglobin and Postpartum RAND 36-Item Short Form Survey (SF-36) and Multidimensional Fatigue Index (MFI) Scores.

Dependent Variable	Bivariate Analyses			Multivariate Analyses*
	Beta	95% CI	P-value	Beta	95% CI	P-value
SF-36
Physical Functioninga	0.78	−3.88 – 5.44	0.74	0.81	−4.68 – 6.31	0.77
Role Limitations due to Physical Healthb	0.65	−6.89 – 8.19	0.86	2.00	−5.91 – 9.91	0.61
Role Limitations due to Emotional Problemsb	−0.53	−8.28 – 7.22	0.89	−2.35	−10.51 – 5.80	0.56
Energy/Fatiguea	1.52	−1.87 – 4.91	0.37	1.53	−2.13 – 5.19	0.4
Emotional Wellbeinga	0.53	−3.59 – 4.65	0.8	0.41	−4.03 – 4.85	0.85
Social Functioningc	2.04	−1.89 – 5.96	0.3	0.74	−3.24 – 4.72	0.71
Painb	1.65	−1.81 – 5.10	0.34	1.77	−2.01 – 5.56	0.35
General Healthc	1.64	−2.57 – 5.85	0.44	1.48	−2.98 – 5.94	0.51
MFI
Reduced Motivationd	0.29	−0.43 – 1.00	0.42	0.01	−0.75–0.77	0.98
Mental Fatiguec	0.19	−0.59 – 0.96	0.63	0.17	−0.76 – 1.10	0.71
General Fatigued	0.76	0.09 – 1.42	0.03	0.48	−0.14 – 1.10	0.13
Physical Fatiguea	0.31	−0.37 – 1.00	0.36	0.27	−0.51 – 1.05	0.49
Reduced Activitya	0.18	−0.44 – 0.80	0.56	0.06	−0.69 – 0.81	0.88

^*Adjusted for maternal age, race/ethnicity, parity, mode of delivery.

MFI = Multidimensional Fatigue Inventory

^an = 55

^bn = 56

^cn = 53

^dn = 54