Table 4.

Educational differences in clinical levels of prenatal anxiety or depressive symptoms, estimated with multilevel linear probability regression. Coefficient estimates with 95% CIs [ ] present differences in the fractions experiencing clinical symptom levels.

Nested models	M1		M4
	Baseline		Fully adjusted
	Anxietya	Depressionb	Anxietya	Depressionb
Education (ref. tertiary)
Primary	0.149***	0.072**	0.100*	0.032
	[0.070, 0.229]	[0.018, 0.125]	[0.021, 0.179]	[-0.018, 0.084]
Secondary vocational	0.067***	0.032***	0.052***	0.021*
	[0.043, 0.091]	[0.016, 0.049]	[0.029, 0.075]	[0.005, 0.037]
Secondary general	0.025*	0.019*	0.015	0.011
	[0.001, 0.048]	[0.001, 0.038]	[-0.008, 0.037]	[-0.007, 0.029]
Childhood SES (ref. upper level employee)
Lower level employee			−0.010	0.005
			[-0.029, 0.009]	[-0.009, 0.019]
Manual worker			−0.012	−0.011
			[-0.036, 0.011]	[-0.026, 0.005]
Other/not classifiedc			−0.028	0.002
			[-0.064, 0.008]	[-0.026, 0.031]
Parent's mental disorder (ref. none)
Mother had			−0.002	0.007
			[-0.025, 0.022]	[-0.011, 0.025]
Father had			−0.010	−0.001
			[-0.035, 0.014]	[-0.019, 0.017]
Childhood adversityd			0.005***	0.004***
			[0.004, 0.006]	[0.003, 0.005]
Trimester (ref. 1st)
2nd	0.025***	−0.002	0.025***	−0.002
	[0.013, 0.037]	[-0.122, 0.008]	[0.013, 0.037]	[-0.012, 0.007]
3rd	0.003	0.004	0.003	0.004
	[-0.008, 0.015]	[-0.006, 0.015]	[-0.009, 0.015]	[-0.006, 0.015]
Intercept	0.055***	0.039***	0.021*	0.007
	[0.044, 0.065]	[0.299, 0.047]	[0.004, 0.038]	[-0.006, 0.019]
Variance components
Individual (θ)	0.015 [0.012, 0.019]		0.013 [0.010, 0.016]
Measure (ϑ)	0.008 [0.006, 0.011]		0.008 [0.006, 0.011]
Time (γ)	0.010 [0.008, 0.013]		0.010 [0.008, 0.013]
Residual (ε)	0.029 [0.026, 0.032]		0.029 [0.026, 0.032]
Intraclass correlations
Symptom-specific	0.37		0.35
General distress	0.24		0.22
N (person-time)	7,366		7,366
N (women)	2,763		2,763

*p < 0.05, **p < 0.01, ***p < 0.001.

^aClinically significant anxiety: ≥ 10 SCL-90 points at pregnancy trimesters 1–3.

^bClinically significant depression: ≥ 13 EPDS points at pregnancy trimesters 1–3.

^cNot classified, never worked, or unemployed.

^dThe trauma and distress scale (TADS) score [sample range 0–89].