Table 2b.
Genetic and Socioeconomic Associations with BMI (Standard Error) in the Age-comparable Sample
|
|
AHEAD (Born before 1924) | CODA (Born 1924–1930) | HRS (Born 1931–1941) | Overall |
|---|---|---|---|---|
| Mean Age =73.4 | Mean Age =73.4 | Mean Age =73.4 | Mean Age ==73.4 | |
| (1) |
(2) |
(3) |
(4) |
|
| Genetic Associationa | .02(.04) | .12(.03)*** | .13(.02)*** | .12(.02)*** |
| (N = 844) | (N = 1449) | (N = 3302) | (N = 5595) | |
| Childhood SES | ||||
| Low | 26.58(.33)** | 27.03(.29) | 28.04(.21)** | 27.59(.15)*** |
| (N = 155) | (N = 263) | (N = 683) | (N = 1101) | |
| Medium | 25.66(.22)** | 26.71(.16) | 27.56(.13)** | 27.10(.09)*** |
| (N = 325) | (N = 816) | (N = 1690) | (N = 2831) | |
| High | 25.47(.23)** | 26.96(.32) | 27.06(.22)** | 26.59(.15)*** |
| (N = 276) | (N = 192) | (N = 510) | (N = 978) | |
| Young Adulthood SES | ||||
| Low | 26.17(.44)* | 27.50(.29)*** | 27.99(.24)*** | 27.67(.18)** |
| (N = 88) | (N = 265) | (N = 537) | (N = 890) | |
| Medium | 26.80(.46)* | 27.44(.29)*** | 28.34(.19)*** | 27.95(.15)*** |
| (N = 99) | (N = 227) | (N = 616) | (N = 942) | |
| High | 25.48(.15)* | 26.52(.15)*** | 27.31(.11)*** | 26.79(.08)*** |
| (N = 656) | (N = 956) | (N = 2146) | (N = 3758) | |
| Middle/Late Adulthood SES | ||||
| Low | 26.47(.49)* | 27.82(.38)*** | 28.45(.25)*** | 28.08(.20)*** |
| (N = 98) | (N = 263) | (N = 626) | (N = 987) | |
| Medium | 25.79(.24)* | 27.24(.19)*** | 27.82(.15)*** | 27.39(.11)*** |
| (N = 279) | (N = 499) | (N = 1192) | (N = 1970) | |
| High | 25.49(.17)* | 26.19(.15)*** | 27.08(.12)*** | 26.57(.09)*** |
| (N = 467) | (N = 687) | (N = 1484) | (N = 2638) | |
| Cumulative Advantage in SES (CAS) | ||||
| CAS(=0) | 26.76(.54)** | 27.55(.30)*** | 28.22(.22)*** | 27.92(.17)*** |
| (N = 77) | (N = 251) | (N = 609) | (N = 937) | |
| CAS(=1) | 26.13(.27)** | 27.10(.22)*** | 28.08(.17)*** | 27.57(.12)*** |
| (N = 229) | (N = 475) | (N = 1077) | (N = 1781) | |
| CAS(=2) | 25.56(.23)** | 26.22(.19)*** | 26.87(.16)*** | 26.47(.11)*** |
| (N = 294) | (N = 453) | (N = 937) | (N = 1684) | |
| CAS(=3) | 25.20(.29)** | 26.24(.47)*** | 26.64(.29)*** | 26.12(.11)*** |
| (N = 155) | (N = 91) | (N = 257) | (N = 503) | |
| SES Trajectory | ||||
| Stable and Low | 26.23(.28)* | 27.32(.21)*** | 28.11(.16)*** | 27.70(.12)*** |
| (N = 230) | (N = 572) | (N = 1345) | (N = 2147) | |
| Downwardly Mobile | 25.75(.40)* | 27.81(.48)*** | 27.47(.35)*** | 27.09(.24)** |
| (N = 107) | (N = 86) | (N = 210) | (N = 403) | |
| Upwardly Mobile | 25.71(.25)* | 26.19(.18)*** | 27.16(.15)*** | 26.68(.11)*** |
| (N = 250) | (N = 507) | (N = 1028) | (N = 1785) | |
| Stable and High | 25.30(.28)* | 26.28(.41)*** | 26.78(.27)*** | 26.25(.18)*** |
| (N = 169) | (N = 106) | (N = 300) | (N = 575) | |
Note: The first row includes estimated genetic association with BMI (β) for each cohort and analyses use t-test to test whether β equals to 0. Values in other rows are means of BMI calculated using onset measures in the analytic sample. In columns (1), (2), and (3), analyses use ANOVA to test for mean socioeconomic differences in BMI. In column (4), analyses use ANOVA to test for mean cohort differences in BMI.
*
p< .05;
**
p< .01;
***
p< .001.