Table 2 Parameter estimates for ordinal logistic regression models: unadjusted (Model 1), adjusted for socioeconomic and demographic characteristics (Models 2 and 3), and adjusted for socioeconomic and demographic characteristics with interactions for race/ethnicity (Model 4), income (Model 5), number of children (Model 6), and all three (Model 7)

Caregiving

1.11 (1.07, 1.14)

1.07 (1.03, 1.11)

1.07 (1.04, 1.11)

1.08 (1.05, 1.12)

1.07 (1.01, 1.12)

1.01 (0.97, 1.06)

1.01 (0.96, 1.08)

Age (years)

1.01 (1.01, 1.01)

1.02 (1.02, 1.02)

1.02 (1.02, 1.02)

1.02 (1.02, 1.02)

1.02 (1.02, 1.02)

1.02 (1.02, 1.02)

Sex

0.99 (0.96, 1.02)

0.96 (0.94, 0.99)

0.96 (0.94, 0.99)

0.96 (0.94, 0.99)

0.96 (0.94, 0.99)

0.96 (0.49, 0.99)

BMI (kg/m2)

1.09 (1.08, 1.09)

1.08 (1.08, 1.08)

1.08 (1.08, 1.08)

1.08 (1.08, 1.08)

1.08 (1.08, 1.08)

1.08 (1.08, 1.08)

Type of community

 Rural

1.19 (1.15, 1.23)

1.18 (1.14, 1.22)

1.18 (1.14, 1.22)

1.18 (1.14, 1.22)

1.18 (1.14, 1.22)

1.18 (1.14, 1.22)

 Intermediate

1.02 (0.99, 1.05)

1.08 (1.05, 1.12)

1.08 (1.05, 1.11)

1.08 (1.05, 1.12)

1.08 (1.05, 1.12)

1.08 (1.05, 1.12)

Works for wages

0.47 (0.45, 0.48)

0.60 (0.58, 0.62)

0.60 (0.58, 0.62)

0.60 (0.58, 0.62)

0.60 (0.58, 0.62)

0.60 (0.58, 0.62)

Race (ref = white)

 Black

1.35 (1.28, 1.42)

1.37 (1.29, 1.45)

1.35 (1.28, 1.42)

1.35 (1.28, 1.42)

1.37 (1.29, 1.46)

 Asian

1.37 (1.23, 1.52)

1.35 (1.20, 1.51)

1.37 (1.23, 1.52)

1.37 (1.23, 1.52)

1.35 (1.20, 1.52)

 Hispanic

1.69 (1.60, 1.80)

1.74 (1.63, 1.85)

1.69 (1.60, 1.80)

1.70 (1.60, 1.80)

1.76 (1.65, 1.87)

 Other

1.36 (1.25, 1.48)

1.33 (1.20, 1.47)

1.36 (1.25, 1.48)

1.37 (1.23, 1.52)

1.33 (1.21, 1.48)

Income (ref = 75 k+)

 0-25 k

3.14 (3.01, 3.28)

3.14 (3.00, 3.28)

3.15 (3.00, 3.30)

3.14 (3.00, 3.28)

3.12 (2.97, 3.27)

 25-50 k

1.62 (1.56, 1.69)

1.62 (1.56, 1.69)

1.62 (1.55, 1.69)

1.62 (1.56, 1.68)

1.61 (1.55, 1.68)

 50-75 k

1.17 (1.13, 1.22)

1.17 (1.13, 1.22)

1.16 (1.11, 1.22)

1.17 (1.13, 1.22)

1.16 (1.11, 1.21)

Children (ref = none)

 1 child

0.97 (0.92, 1.01)

0.97 (0.92, 1.01)

0.97 (0.92, 1.01)

0.94 (0.90, 0.99)

0.94 (0.89, 0.99)

 2 or more children

0.86 (0.82, 0.90)

0.86 (0.82, 0.89)

0.86 (0.82, 0.89)

0.83 (0.79, 0.87)

0.82 (0.79, 0.86)

Race-caregiving intx

 Black x Caregiving

0.96 (0.85, 1.08)

0.94 (0.84, 1.06)

 Asian x Caregiving

1.11 (0.84, 1.48)

1.10 (0.83, 1.46)

 Hispanic x Caregiving

0.88 (0.75, 1.04)

0.86 (0.73, 1.01)

 Other x Caregiving

1.08 (0.89, 1.31)

1.06 (0.87, 1.29)

Income-caregiving intx

 0-25 k x Caregiving

0.99 (0.90, 1.08)

1.02 (0.93, 1.12)

 25-50 k x Caregiving

1.00 (0.90, 1.09)

1.02 (0.93, 1.12)

 50-75 k x Caregiving

1.03 (0.94, 1.12)

1.03 (0.94, 1.13)

Children-caregiving intx

 1 child x Caregiving

1.10 (1.00, 1.21)

1.11 (1.01, 1.23)

 2+ children x Caregiving

1.17 (1.08, 1.26)

1.18 (1.09, 1.28)