Table 1 Descriptive statistics for participant characteristics and key variables by gender

Within-couple variables

OR (95% CI)

Race/ethnicity, %

–

–

0.99 (0.51, 1.94)^a

European American/White

70.8%

70.8%

African American/Black

11.1%

17.4%

Hispanic/Latinx

11.8%

4.9%

Asian American

2.1%

2.8%

Other

4.2%

4.2%

Education, %

–

57.6%

–

59.7%

1.09 (0.62, 1.93)^b

Less than high school degree

1.4%

2.8%

High school degree

3.5%

6.3%

Some college or vocational training

37.5%

31.2%

Bachelor’s degree

20.1%

26.4%

More than a bachelor’s degree

37.5%

33.3%

B (SE)

pr

Age

19–71

34.13 (12.31)

18–65

33.32 (10.21)

− 0.14 (1.78)

− 0.01

BMI

16.89–40.92

26.28 (4.59)

16.88–61.83

29.38 (8.23)

3.10 (0.91)***

0.28

ISA

1–5

2.81 (1.02)

1–4.22

2.06 (0.84)

− 0.75 (0.12)***

− 0.45

Relationship quality

69–133

107.82 (11.06)

56–133

108.80 (12.15)

0.99 (1.60)

0.05

Eating attitudes

0–46

8.42 (7.69)

0–35

6.93 (6.75)

− 1.49 (0.87)

− 0.14

Cognitive restraint

0–100

41.635 (22.20)

0–84.13

43.25 (18.85)

1.62 (2.56)

0.05

Emotional eating

0–100

41.90 (31.45)

0–100

37.81 (26.71)

− 4.09 (3.49)

− 0.10

Uncontrolled eating

0–96.30

39.68 (23.11)

0–96.30

34.47 (18.74)

− 5.22 (2.51)*

− 0.17

Between-couples variables

Relationship length, years

0.50–61.50

6.41 (9.94)

0.50–19.00

4.69 (4.47)

t(142) = 1.36

d = 0.23

Cohabitation, % yes

–

83.1%

–

84.7%

χ² (1, N = 143) = 0.07