Table 1.
Baseline Demographic and Clinical Characteristics of Depressed NCODE Participants Recruited Between 1998 and 2001 Who Did and Did Not Complete the NEO-PI-R.
| Variable | NEO-PI-R Completers (n=112) | Refused NEO-PI-R (n=22) | Not Approached with NEO-PI-R (n=114) | Results of 3 group ANOVA / χ2 / Exact test |
|---|---|---|---|---|
| Age*** | 67.8 (6.1) [59–83] | 69.2 (7.3) [60–81] | 72.4 (8.2) [59–91] | Welch F(2.0,58.3) = 11.68, p <.0001 |
| Education** | 13.9 (2.7) [7–17] | 13.0 (2.51) [7–17] | 12.6 (2.9) [11–19] | Welch F(2.0,62.9) = 5.06, p = .0092 |
| Gender* | 62% Female | 68% Female | 79% Female | χ2 (2) = 8.16, p = 0.0169 |
| Race* | 89.3% White 4.5% Black 0.9% Asian 5.4% Other |
86.4% White 14.0% Black 0% Asian 0% Other |
76.3% White 16.7% Black 2.6% Asian 4.4%Other |
Exact test, 0.0493 |
| Marital Status ** | 61.6% Married 3.6% Separated 17.0% Divorced 17.0% Widowed 0.9% Never married |
50.0% Married 4.6% Separated 9.1% Divorced 31.8% Widowed 4.6% Never married |
46.5% Married 3.5% Separated 7.9% Divorced 39.5% Widowed 2.6% Never married |
Exact test, 0.0070 |
| MMSE *** | 28.2 (2.6) [11–30] | 27.7 (2.0) [22–30] | 26.6 (3.6) [9–30] | F(2,245) = 8.63, p = 0.0002 |
| NEO-PI-R T scores | Mean (SD) [% > 55] | - | - | - |
| Neuroticism | 54.7 (11.7) [44%] | - | - | - |
| Extraversion | 45.2 (9.4) [13%] | - | - | - |
| Openness | 45.6 (11.4) [24%] | - | - | - |
| Agreeableness | 54.3 (9.2) [46%] | - | - | - |
| Conscientiousness | 43.9 (11.4) [18%] | - | - | - |
| MADRS Total | 26.9 (6.9) [13–50] | 28.4 (9.3) [16–53] | 28.6 (8.3) [10–52] | F(2,245) = 1.41, p = 0.2453 |
| Suicidal Ideation (% ≥ 2 on MADRS #10) | 48.2% | 36.4% | 50.9% | χ2 (2) = 1.56, p = 0.4589 |
| History of Suicide Attempt | 11.6% | 0% | 7.0% | χ2 (2) = 3.77, p = 0.1519 |
| Perceived Social Support (/30) | 23.7 (3.8) [11–28] | 22.3 (4.5) [12–28] | 22.6 (4.2) [11–28] | F(2,238) = 2.38, p = 0.0948 |
Note. Data are means, (standard deviation), and [range] unless otherwise noted; MADRS = Montgomery-Asberg Depression Rating Scale, MMSE = Mini-Mental State Exam.
*
p < .05,
**
p < .01
***
p < .001 post-hoc comparison of NEO-PI-R completers with those patients not approached with NEO-PI-R. Post-hoc comparisons did not reveal significant group differences between NEO-PI-R completers and those who refused NEO-PI-R, or between those who refused NEO-PI-R and those who were not approached with NEO-PI-R.