Table 1.
Demographic variables, independent and dependent variables: correlations and descriptive statistics.
| Mean (standard deviation) or % |
Childhood disadvantage |
AFQT age 20 |
Midlife SES |
AUC cortisol |
Cortisol awakening response |
Wake-to-Bed Slope |
Ethnicity | Currently smokes |
CESD | |
|---|---|---|---|---|---|---|---|---|---|---|
| Childhood Disadvantage Index | 1.23 (1.07) | |||||||||
| AFQT age 20 | 0.33 (0.70) | −0.27**** | ||||||||
| Midlife SES (participant) | 42.2 (10.81) | −0.19 **** | 0.34**** | |||||||
| AUC Cortisol age 56 | 22.99 (5.87) | 0.11 ** | −0.14*** | −0 16 **** | ||||||
| Cortisol Awakening Response (CAR) | 1.21 (0.42) | 0.06 | −0.12 ** | −0 09* | 0.42**** | |||||
| Wake-to-Bed Slope (WBslope) | −.08 (.01) | 0.04 | −0.12*** | −0 12 ** | 0.32**** | −0.20**** | ||||
| Ethnicity (% non-Hispanic white) | 85% | 0.23 **** | −0.28**** | −0.04 | 0.02 | 0.05 | 0.07 | |||
| Currently Smokes | 25% | 0.10** | −0.17**** | −0.21**** | 0.16**** | 0.11** | 0.14*** | 0.03 | ||
| CESD (score > = 16) | 14% | 0.07 | −0.13 *** | −0 12*** | 0.06 | 0.03 | 0.04 | 0.09* | 0.13*** | |
| Father SES | 33.45 (12.17) | −0.49 *** | 0.19**** | 0.26**** | −0.08* | −0.04 | −0.04 | −0.15**** | 0.06 | 0.01 |
| Mother Education (Years) | 11.45 (2.54) | −0.52**** | 0.17**** | 0.12** | −0.06 | 0.01 | −0.07 | −0.22 | −0.04 | 0.01 |
| Number of siblings | 5.29 (2.42) | 0.44**** | −0.16**** | −0.09* | 0.09* | 0.07* | 0.06 | 0.22**** | 0.06 | −0.02 |
| Separated from parents | 20.98% | 0.41**** | −0.08* | −0 05* | 0.09* | 0.05 | 0.04 | 0.04 | 0.08* | 0.11** |
Notes: N = 727; Armed Forces Qualification Test (AFQT); Socioeconomic status (SES); area under the curve (AUC). Currently smokes cigarettes (0 = no; 1 = yes); Center for Epidemiologic Studies Depression scale (CESD; <16 versus > = 16); Ethnicity (0 = non-Hispanic white; 1 = other); Separated from parents (0 = no; 1 = yes).
*
p < .05.
**
p < .01.
***
p < .001.
****
p < .0001.