Table 3.
Mean differences in Year 15 depressive symptoms by level of model covariate1
| Sample (n=2544) | Whites (n=1481) | Blacks (n=1063) | ||||
|---|---|---|---|---|---|---|
| Mean (SD) | tdiff | Mean (SD) | tdiff | Mean (SD) | tdiff | |
| Sex | 2.22* | .74 | 1.82† | |||
| Men | 8.22 (6.99) | 7.36 (6.33) | 9.57 (7.74) | |||
| Women | 9.03 (8.00) | 7.73 (7.11) | 10.66 (8.73) | |||
| Smoker status | 5.90*** | 3.09** | 5.74*** | |||
| Never | 7.98 (7.17) | 7.13 (6.56) | 9.12 (7.79) | |||
| Current/former | 9.79 (8.10) | 8.25 (7.05) | 12.02 (8.97) | |||
| OC/HT (women) | 2.91** | 1.05 | 1.95† | |||
| No | 9.14 (8.17) | 7.88 (7.25) | 10.61 (8.92) | |||
| Yes | 7.28 (6.22) | 6.94 (5.50) | 8.19 (6.41) | |||
| Antidepressant use | ||||||
| No | 8.29 (7.16) | 6.28*** | 7.09 (6.14) | 5.50*** | 9.83 (8.05) | 5.25*** |
| Yes | 11.94 (9.93) | 10.62 (9.38) | 15.68 (10.53) | |||
*
p< .05.
**
p< .01.
***
p< .001.
1
SD = standard deviation; tdiff = Student's t; OC/HT = oral contraceptive/hormone therapy