Table 1. Characteristics of Patients with and without Persistent Depressive Symptoms.
| Characteristics | Persistent Depressive Symptoms (BDI ≥ 10) n=41 | No Persistent Depressive Symptoms (BDI < 10) n=210 | P valuea |
|---|---|---|---|
| N (%) or Mean (SD) | N (%) or Mean (SD) | ||
| Demographics | |||
| Age (years) | 63.5 (7.9) | 68.1 (9.7) | .005 |
| Female | 11 (26.8) | 57 (27.1) | .97 |
| Non-Hispanic White | 27 (65.9) | 153 (72.9) | .36 |
| > high school education | 33 (80.5) | 158 (76.3) | .56 |
| Married or cohabitating | 28 (68.3) | 150 (71.4) | .69 |
| Employed | 15 (38.5) | 84 (40.0) | .86 |
| Biomedical measures | |||
| Body Mass Index (kg/m2) | 28.9 (7.3) | 28.8 (5.6) | .88 |
| Charlson Comorbidity Index Total Score | 3.3 (1.6) | 3.7 (1.8) | .28 |
| Non-Elective Surgery | 14 (36.8) | 76 (38.2) | .88 |
| Type of Surgery – CABG | 25 (71.4) | 85 (54.5) | .14 |
| Post-op Complications (yes) | 14 (40.0) | 76 (45.8) | .53 |
| Number of grafts | 2.6 (1.2) | 2.2 (1.2) | .11 |
| Pump time (min) | 80.8 (33.3) | 96.7(44.6) | .033 |
| Cross clamp time (min) | 55.5 (26.1) | 72.0 (37.9) | .011 |
| Ejection Fraction | 52.0 (17.3) | 53.6 (12.8) | .53 |
| Time from surgery to enrollment (days) | 9.5 (13.7) | 9.2 (11.9) | .90 |
| Psychosocial measures | |||
| Mini Mental Exam Total Score | 27.4 (1.0) | 27.6 (0.8) | .15 |
| Baseline anxiety | 1.3 (1.1) | 0.7 (0.7) | <.001 |
| Baseline pain interference | 5.0 (3.5) | 3.3 (2.6) | <.001 |
| Baseline pain severity | 3.9 (2.4) | 3.1 (2.0) | .028 |
| Baseline perceived control | 27.2 (6.3) | 31.4 (7.0) | .001 |
| Baseline perceived social support | 70.8 (11.0) | 73.3 (12.9) | .24 |
| Baseline sleep quality | 10.7 (4.2) | 7.0 (4.0) | <.001 |
| Depression-related measures | |||
| History of Depression | 9 (22.0) | 17 (8.1) | .008 |
| On antidepressants | 5 (12.2) | 19 (9.0) | .53 |
| Baseline depressive symptoms | 15.7 (6.6) | 5.7 (4.1) | <.001 |
BDI = Beck Depression Inventory
a
using t tests or X2 tests