Table 3. Adjusted odds of binge drinking (ever binge drink and binge 2+ times) in CWHS, with and without interactions.

	Ever binge drinkb OR (95% CI)		Binge drink 2+ timesb OR (95% CI)
		+Interactions		+Interactions
New mothers	0.56 (0.47, 0.68)**	0.30 (0.15, 0.59)**	0.62 (0.46, 0.82)**	0.16 (0.05, 0.54)**
Race/ethnicity
White	Ref.	Ref.
Black	0.60 (0.49, 0.74)**	0.61 (0.49, 0.74)**	0.65 (0.50, 0.86)**	0.65 (0.50, 0.85)**
Hispanic	0.72 (0.63, 0.81)**	0.72 (0.63, 0.81)**	0.71 (0.60, 0.85)**	0.71 (0.60, 0.84)**
Other	0.56 (0.46, 0.68)**	0.56 (0.46, 0.68)**	0.57 (0.43, 0.74)**	0.56 (0.43, 0.74)**
Marital
Married	Ref	Ref
Div/sep/widow	1.62 (1.40, 1.88)**	1.62 (1.40, 1.88)**	1.85 (1.53, 2.25)**	1.79 (1.47, 2.18)**
Never married	2.01 (1.77, 2.29)**	2.02 (1.78, 2.30) **	2.30 (1.94, 2.71)**	2.24 (1.89, 2.66)**
Unmarried couple	1.60 (1.34, 1.89)**	1.60 (1.35, 1.90)**	1.87 (1.48, 2.36)**	1.73 (1.35, 2.20)**
Age
18–24	Ref	Ref
25–29	0.90 (0.77, 1.06)	0.91 (0.77, 1.06)	0.81 (0.66, 0.99)**	0.81 (0.66, 1.00)**
30–34	0.60 (0.51, 0.71)**	0.60 (0.51, 0.71)**	0.54 (0.44, 0.67)**	0.54 (0.44, 0.67)**
35–40	0.48 (0.40, 0.56)**	0.48 (0.41, 0.56)**	0.42 (0.34, 0.52)**	0.42 (0.33, 0.52)**
41–48	0.41 (0.35, 0.49)**	0.41 (0.35, 0.49)**	0.46 (0.37, 0.57)**	0.46 (0.37, 0.57)**
Education
<9th or some HS	Ref	Ref
HS Grad or GED Cert	1.34 (1.13, 1.61)**	1.34 (1.12, 1.60)**	1.27 (1.01, 1.61)**	1.27 (1.00, 1.61)**
Tech Sch. or some college	1.25 (1.04, 1.61)**	1.24 (1.03, 1.49)**	1.29 (1.01, 1.65)**	1.29 (1.01, 1.65)**
College or Post Grad	1.20 (0.99, 1.46)*	1.20 (0.99, 1.45)*	1.05 (0.81, 1.37)	1.06 (0.81, 1.38)
Income
<$10,000	Ref	Ref
$10,000–19,999	1.07 (0.87, 1.33)	1.02 (0.81, 1.27)	1.02 (0.78, 1.34)	0.95 (0.72, 1.26)
$20,000-$34,999	1.12 (0.91, 1.39)	1.09 (0.87, 1.36)	1.03 (0.79, 1.35)	0.97 (0.74, 1.29)
$35,000-$49,999	1.16 (0.93, 1.45)	1.08 (0.86, 1.37)	1.10 (0.82, 1.46)	0.98 (0.73, 1.32)
$50,000-$75,000	1.24 (1.99, 1.55)*	1.22 (0.96, 1.54)	1.06 (0.79, 1.42)	1.02 (0.76, 1.38)
Over $75,000	1.65 (1.32, 2.07)**	1.59 (1.26, 2.00)**	1.38 (1.04, 1.84)**	1.37 (1.03, 1.38)*
Missinga	0.80 (0.59, 1.10)	0.79 (0.57, 1.09)	0.63 (0.41, 0.98)**	0.61 (0.39, 0.95)**
Employment status
Employed full time (≥32 h/week)	Ref.	Ref.	Ref.	Ref.
Employed part time (<32 h/week)	1.06 (0.92, 1.22)	1.04 (0.90, 1.21)	0.99 (0.81, 1.21)	0.95 (0.78, 1.17)
Self-employed	0.93 (0.77, 1.12)	0.88 (0.73, 1.07)	0.99 (0.75, 1.30)	0.92 (0.69, 1.22)
Out of work/retired/unable to work	0.77 (0.65, 0.91)**	0.73 (0.61, 0.88)**	0.86 (0.69, 1.07)	0.79 (0.62, 0.99)**
Homemaker	0.66 (0.56, 0.77)**	0.65 (0.55, 0.77)**	0.65 (0.52, 0.81)**	0.71 (0.56, 0.89)**
Student	0.93 (0.77, 1.13)	0.93 (0.76, 1.12)	0.89 (0.69, 1.14)	0.89 (0.68, 0.15)
Smoker
No	Ref.	Ref.	Ref.	Ref.
Yes	3.51 (3.14, 3.92)**	3.52 (3.15, 3.94)**	4.17 (3.60, 4.83)**	4.20 (3.63, 4.86)**
Interactions with new motherhood (ref. other women)
Marital
Married				Ref
Div/sep/widow		–		2.02 (0.90, 5.38)*
Never married		–		1.73 (0.76, 3.94)
Unmarried couple		–		2.35 (1.11, 4.98)**
Income
<$10,000		Ref		Ref
$10,000–19,999		1.69 (0.83, 3.43)		2.01 (0.77, 5.26)
$20,000-$34,999		1.33 (0.65, 2.73)		1.87 (0.67, 5.22)
$35,000-$49,999		2.19 (1.05, 4.54)**		3.66 (1.22, 10.98)**
$50,000-$75,000		0.95 (0.43, 2.11)		0.73 (0.18, 2.96)
Over $75,000		1.62 (0.82, 3.21)		2.47 (0.77, 7.90)
Missinga		1.16 (0.35, 3.87)		1.37 (0.15, 12.71)
Employment status
Employed full time (≥32 h/week)		Ref.		Ref.
Employed part time (<32 h/week)		1.33 (0.73, 2.41)		1.81 (0.75, 4.38)
Self-employed		2.17 (0.95, 4.99)*		3.34 (1.00, 11.06)**
Out of work/retired/unable to work		1.69 (0.93, 3.10)*		2.31 (1.01, 5.26)**
Homemaker		1.30 (0.80, 2.11)		0.73 (0.32, 1.68)
Student		1.11 (0.45, 2.72)		0.85 (0.26, 2.80)

^*P < 0.10,

^**P < 0.05

^aMissing includes don't know and refused

^bAny alcohol = any alcohol, past 30 days; drink frequently = drank > 4 days, past 30 days; ever binge drink = 4/5 drinks ≥ 1 time in past 30 days; binge 2+ times = 4/5 drinks ≥ 2 time in past 30 day