Table 4.

Adjusted ORs for alcohol use disorder exposure and demographic factors significantly associated with <80% attendance, non-Indigenous

		OR*	95% CI
Alcohol diagnosis	No alcohol diagnosis	Ref
	During pregnancy	1.45	1.11 to 1.88
	>1 year postpregnancy	1.59	1.45 to 1.74
	>1 year prepregnancy	1.65	1.49 to 1.83
	Up to 1 year postpregnancy	1.39	1.06 to 1.81
	Up to 1 year prepregnancy	1.54	1.27 to 1.87
Maternal age at child’s birth	20–<25 years	Ref
	<20 years	1.47	1.33 to 1.63
	25–<30 years	0.83	0.76 to 0.91
	30–<35 years	0.73	0.66 to 0.81
	35–<40 years	0.68	0.59 to 0.79
	40+ years	0.80	0.60 to 1.05
Marital status	Married	Ref
	Never married	1.38	1.27 to 1.50
	Separated, widowed, divorced	1.53	1.25 to 1.88
Socioeconomic status	Most advantaged >10%	Ref
	Second group 10% to <25%	1.21	0.94 to 1.57
	Third group 25% to <50%	1.42	1.12 to 1.80
	Fourth group 50% to <75%	1.57	1.24 to 1.99
	Fifth group 75% to <90%	1.78	1.41 to 2.26
	Most disadvantaged bottom 10%	1.90	1.50 to 2.42
	Unknown	1.37	1.06 to 1.77
Parity	0	Ref
	1	1.29	1.19 to 1.41
	2	1.81	1.63 to 2.00
	3+	2.65	2.36 to 2.98
Percentage of optimal birth weight	Greater or equal to 10th percentile	Ref
	Less than 10th percentile	1.24	1.13 to 1.36
Any maternal mental health record	No	Ref
	Yes	1.20	1.11 to 1.30
Child protection contact	No	Ref
	Yes	1.12	1.00 to 1.24

*Adjusted for all other variables and baby year of birth (matching variable).