Socioeconomic and Demographic Factors for Spousal Resemblance in Obesity Status and Habitual Physical Activity in the United States
Table 4
Association and similarity of habitual physical activity between husband and wife in the US: stratified by household-/couple-level characteristics.
Crude % of having HPA
Kappa coefficients
Logistic regression
Husbands
Wives
Difference
95% CI
†OR
95% CI
Whole sample
61.7%
58.2%
+3.5%
0.354
(0.353, 0.355)
4.5
(4.0, 5.0)
Stratified by
Couple’s race/ethnicity
Both NH white(ref)
64.2%
62.5%
+1.7%
0.333
(0.331, 0.335)
4.2
(3.7, 4.8)
Both NH black
59.9%
51.5%
+8.4%
0.344
(0.333, 0.355)
4.6
(3.3, 6.3)
Both Hispanic
50.3%
41.1%
+9.2%
0.397
(0.393, 0.400)
6.0
(4.8, 7.5)
*
Both were other
55.7%
50.6%
+5.0%
0.366
(0.349, 0.383)
5.4
(3.6, 8.2)
Interracial/ethnic
63.5%
58.9%
+4.6%
0.345
(0.332, 0.359)
5.2
(3.6, 7.5)
Couple’s mean age
<30 y
65.8%
56.4%
+9.4%
0.362
(0.352, 0.372)
5.1
(3.7, 6.9)
30–39 y
60.9%
57.1%
+3.9%
0.373
(0.370, 0.377)
4.9
(4.0, 6.0)
40–54 y
60.8%
58.7%
+2.1%
0.348
(0.345, 0.351)
4.4
(3.7, 5.2)
≥55 years
61.8%
59.7%
+2.1%
0.339
(0.335, 0.342)
4.2
(3.3, 5.3)
Family size
2 persons
63.9%
59.7%
+4.1%
0.357
(0.353, 0.361)
4.8
(3.9, 5.8)
3-4 persons
61.7%
58.9%
+2.8%
0.329
(0.327, 0.331)
4.0
(3.5, 4.7)
*
≥5 persons(ref)
57.6%
53.8%
+3.8%
0.407
(0.404, 0.410)
5.5
(4.4, 6.9)
Employment condition
Both unemployed
54.4%
49.5%
+4.9%
0.370
(0.359, 0.381)
5.2
(3.5, 7.7)
Only husband unemployed
54.0%
56.9%
−2.9%
0.317
(0.298, 0.336)
4.5
(2.9, 7.2)
Only wife unemployed
60.0%
57.0%
+3.0%
0.344
(0.340, 0.349)
4.5
(3.6, 5.6)
Both employed(ref)
63.6%
59.7%
+4.0%
0.356
(0.354, 0.357)
4.6
(4.1, 5.3)
Household income level
<200% poverty line
53.7%
47.5%
+6.2%
0.404
(0.401, 0.408)
6.1
(4.9, 7.6)
*
≥200% poverty line
63.5%
60.7%
+2.8%
0.335
(0.334, 0.337)
4.2
(3.7, 4.8)
Receiving food stamp last year
Ever
55.5%
50.2%
+5.3%
0.468
(0.454, 0.482)
7.9
(4.9, 12.6)
*
No(ref)
61.9%
58.5%
+3.4%
0.349
(0.348, 0.351)
4.4
(4.0, 4.9)
Couple-level analysis: HPA (habitual physical activity). †Adjusted for individual level variables, including husband’s and wife’s ages, education years, race/ethnicity, weight status, smoking, individual income, employment status, survey year, indicator of respondent, and missingness indicators. Testing for cross strata difference in OR, compared to the referent stratum: * < 0.05. (ref): the referent stratum.
