Table 3.

Multilevel mixed effects model of associations of physical activity, glycaemic load and saturated fat with EPDS depressive symptoms across the peripartum N = 1522

	Physical activity (square root of MET)				Glycaemic load (grams/day)				Saturated fat (% energy)
Linear regression
	Unadjusted*		Adjusted**		Unadjusted*		Adjusted**		Unadjusted*		Adjusted**
	Beta (95% CI)	p value	Beta (95% CI)	p value	Beta (95% CI)	p value	Beta (95% CI)	p value	Beta (95% CI)	p value	Beta (95% CI)	p value
Participant mean	-0.002 (-0.011,0.007)	0.68	0.001 (-0.009,0.010)	0.90	0.009 (0.003,0.016)	< 0.01	0.008 (0.002,0.015)	0.01	-0.024 (-0.129,0.082)	0.66	0.021 (-0.090,0.132)	0.71
Repeated measure of predictor	-0.005 (-0.010,0.001)	0.08	-0.005 (-0.011,0.001)	0.08	0.010 (0.005,0.014)	< 0.01	0.010 (0.005,0.015)	< 0.01	0.027 (-0.048,0.102)	0.47	0.026 (-0.048,0.101)	0.49
Logistic regression
	Unadjusted*		Adjusted**		Unadjusted*		Adjusted**		Unadjusted*		Adjusted**
	OR (95% CI)	p value	OR (95% CI)	p value	OR (95% CI)	p value	OR (95% CI)	p value	OR (95% CI)	p value	OR (95% CI)	p value
Participant mean	1.001 (0.993,1.009)	0.73	1.004 (0.996,1.012)	0.38	1.007 (1.001,1.012)	0.02	1.006 (1.001,1.012)	0.02	0.958 (0.881,1.041)	0.31	0.985 (0.903,1.073)	0.72
Repeated measure of predictor	0.997 (0.992,1.002)	0.25	0.997 (0.992,1.002)	0.24	1.008 (1.004,1.012)	< 0.01	1.008 (1.004,1.012)	< 0.01	1.009 (0.953,1.070)	0.75	1.009 (0.952,1.069)	0.77
	Random effects on linear analyses				Random effects on linear analyses				Random effects on linear analyses
	Variance	SE	Variance	SE	Variance	SE	Variance	SE	Variance	SE	Variance	SE
Between participants	2.536	0.102	2.463	0.102	2.132	0.149	2.048	0.150	2.569	0.159	2.544	0.086
Within participants	3.908	0.058	3.910	0.058	3.871	0.058	3.871	0.058	3.930	0.059	3.932	0.058

Using imputed data *adjusted for time of visit only. **adjusted for BMI, deprivation quintile, ethnicity, age, participation in the intervention and time of visit