Table 1.
Descriptive statistics and relative associations of covariates with hormone AUCG measures
| Association with Hormone AUCG | |||
|---|---|---|---|
| Measure | Value | Testosterone | Cortisol |
| Testosterone AUCG (pg/ml/day) | 1429.64 (471.12) | -- | -- |
| Cortisol AUCG (nmol/l/day) | 90.71 (36.63) | r = .41 (p < .001) | -- |
| Age (years) | 56.34 (2.60) | r = −.14 (p = .001) | r = −.04 (p = .42) |
| Age 20 General Cognitive Ability (Percentile) | 60.35 (22.72) | r = −.06 (p = .26) | r = −.14 (p < .001 ) |
| Ethnicity (% Non-Hispanic White) | 89.5% | t = 1.02 (p = .31) | t = 1.08 (p = .28) |
| Hypertension (% Yes) | 59.8% | t = 1.39 (p = .16) | t = −1.80 (p = .07) |
| Cardiovascular Disease (% Yes) | 17.3% | t = 2.19 (p = .03) | t = 0.26 (p = .80) |
| Diabetes (% Yes) | 11.0% | t = −0.01 (p = .99) | t = −0.23 (p = .82) |
| Current Smoker (% Yes) | 24.0% | t = −2.88 (p < .01) | t = −4.02 (p < .001) |
| Alcohol Use (past 2 weeks) | F = 2.45 (p=.06) | F = 3.01 (p=.03) | |
| None | 34.3% | ||
| ≤1 drink per day | 41.2% | ||
| >1 ≤2 drinks per day | 10.0% | ||
| >2 drinks per day | 14.6% | ||
| CES-D Total Score | 8.07 (7.95) | r = .03 (p = .59) | r = .08 (p = .02) |
Data are presented as mean and standard deviation unless otherwise specified. Total N = 741. Tests of association between the covariates and relative hormones account for the non-independence of the twin data. Degrees of freedom for dichotomous risk factors = 342. Degrees of freedom for Alcohol Use = 3, 340.