Table 1.
Patient Characteristics
| Variable | Full Study Sample (N=89) |
Elevated Depressive Symptoms (N=36) |
Low Depressive Symptoms (N=53) |
Elevated vs. Low Depressive Symptoms Group Differences |
|||||
|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SEM | Mean | SEM | t | df | p | |
| Age (Years) | 50.40 | 7.69 | 49.25 | 1.35 | 51.19 | 1.01 | 1.17 | 87 | 0.25 |
| Education (Years) | 15.45 | 2.54 | 15.06 | 0.50 | 15.72 | 0.30 | 1.21 | 87 | 0.23 |
| Time from Surgery to Assessment (Days) | 37.63 | 22.67 | 40.40 | 4.26 | 35.79 | 2.87 | −0.93 | 86 | 0.35 |
| BMI | 26.32 | 5.24 | 28.55 | 1.29 | 25.03 | 0.66 | −2.69 | 61 | 0.009 |
| Number of positive lymph nodes | 0.87 | 2.46 | 0.83 | 0.30 | 0.89 | 0.31 | 0.10 | 87 | 0.92 |
| Fatigue Intensity | 4.37 | 1.70 | 4.89 | 0.27 | 3.99 | 0.23 | −2.50 | 84 | 0.014 |
| HRSD Continuous | 7.25 | 5.55 | 12.83 | 0.71 | 3.45 | 0.26 | |||
| N | % | N | % | N | % | χ2 | df | p | |
| Race/Ethnicity | 12.67 | 2 | 0.002 | ||||||
| White non-Hispanic | 63 | 70.8 | 18 | 50.0 | 45 | 84.9 | |||
| Hispanic | 17 | 19.1 | 12 | 33.3 | 5 | 9.4 | |||
| Other | 9 | 10.1 | 6 | 16.7 | 3 | 5.7 | |||
| Stage | 1.98 | 3 | 0.58 | ||||||
| 0 | 17 | 19.1 | 9 | 25.0 | 8 | 12.7 | |||
| I | 36 | 40.4 | 12 | 33.3 | 24 | 38.1 | |||
| II | 33 | 37.1 | 14 | 38.9 | 19 | 30.2 | |||
| III | 3 | 3.4 | 1 | 2.8 | 2 | 3.2 | |||
| Surgical Procedure | 0.26 | 1 | 0.61 | ||||||
| Lumpectomy | 49 | 55.1 | 21 | 58.3 | 28 | 52.8 | |||
| Mastectomy | 40 | 44.9 | 15 | 41.7 | 25 | 47.2 | |||
| ER Status | 2.04 | 2 | 0.36 | ||||||
| Positive | 57 | 64.0 | 20 | 55.6 | 37 | 69.8 | |||
| Negative | 11 | 12.4 | 6 | 16.7 | 5 | 9.4 | |||
| Unreported | 21 | 23.6 | 10 | 27.8 | 11 | 20.8 | |||
| PR Status | 1 | 2 | 0.61 | ||||||
| Positive | 40 | 44.9 | 14 | 38.9 | 26 | 49.1 | |||
| Negative | 19 | 21.3 | 8 | 22.2 | 11 | 20.8 | |||
| Unreported | 30 | 33.7 | 14 | 38.9 | 16 | 30.1 | |||
| HER-2/neu Status | 4.65 | 2 | 0.098 | ||||||
| Positive | 9 | 10.1 | 5 | 13.9 | 4 | 7.5 | |||
| Negative | 34 | 38.2 | 9 | 25.0 | 25 | 47.2 | |||
| Unreported | 46 | 51.7 | 22 | 61.1 | 24 | 45.3 | |||
| Triple Negative Status | 1.5 | 2 | 0.47 | ||||||
| Triple Negative | 4 | 4.5 | 1 | 2.8 | 3 | 5.7 | |||
| Not Triple Negative | 61 | 68.5 | 23 | 63.9 | 38 | 71.7 | |||
| Unreported | 24 | 27.0 | 12 | 33.3 | 12 | 22.6 | |||
| Smoking Status | 0 | 1 | 0.98 | ||||||
| Smoker | 5 | 5.6 | 2 | 5.6 | 3 | 5.7 | |||
| Non-Smoker | 84 | 94.4 | 34 | 94.4 | 50 | 94.3 | |||
| Anti-depressant medication use | 0.95 | 1 | 0.33 | ||||||
| Yes | 9 | 10.1 | 5 | 13.9 | 4 | 7.5 | |||
| No | 80 | 89.9 | 31 | 86.1 | 49 | 92.5 | |||
| Anxiety medication use | 1.36 | 1 | 0.24 | ||||||
| Yes | 17 | 80.9 | 9 | 25.0 | 8 | 15.1 | |||
| No | 72 | 80.9 | 27 | 75.0 | 45 | 84.9 | |||
| Sleep medication use | 6.62 | 1 | 0.010 | ||||||
| Yes | 14 | 15.7 | 10 | 27.8 | 4 | 7.5 | |||
| No | 75 | 84.3 | 26 | 72.2 | 49 | 92.5 | |||
| Pain medication use | 2.27 | 1 | 0.13 | ||||||
| Yes | 20 | 22.5 | 11 | 30.6 | 9 | 17.0 | |||
| No | 69 | 77.5 | 25 | 69.4 | 44 | 83.0 | |||
Note. Data represent descriptive statistics and differences between patients with elevated vs. low depressive symptoms.
As elevated vs. low depressive symptoms groups are defined by scores on the HRSD, tests of group differences on this measure are not meaningful and have been omitted.