Table 1.
Distribution of demographic, family and clinical characteristics at baseline
| Couple conflict over the past 2 weeks, have you been angry or argued with each other? | Low less than half the time (N = 667, 79.40%) | High half the time or more (N = 173, 20.60%) | Total (N = 840, 100%) | p-value low vs. high |
|---|---|---|---|---|
| Treatment type (N, %) | 0.976 | |||
| IMPACT | 323 (79.36%) | 84 (20.64%) | 407 (48.45%) | |
| Usual care | 344 (79.45%) | 89 (20.55%) | 433 (51.55%) | |
| Demographic characteristics | ||||
| Age (mean ± SE) | 70.51 ± 0.27 | 69.92 ± 0.50 | 70.39 ± 0.24 | 0.32 |
| Gender (N, %) | 0.90 | |||
| Female | 339 (79.58%) | 87 (20.42%) | 426 (50.71%) | |
| Male | 328 (79.23%) | 86 (20.77%) | 414 (49.29%) | |
| Marital status | 0.58 | |||
| Married | 620 (79.28%) | 162 (20.72%) | 782 (93.10%) | |
| Not married/cohabiting | 219 (76.00%) | 6 (24%) | 25 (2.98%) | |
| Divorced/separated | 28 (84.85%) | 5 (15.15%) | 33 (3.93%) | |
| Education (N, %)* | 0.012 | |||
| Less than high school | 116 (17.39%) | 31 (17.92%) | 147 (17.50%) | |
| High school graduate | 134 (20.09%) | 53 (30.64%) | 187 (22.26%) | |
| Some college | 233 (34.93%) | 56 (32.37%) | 217 (34.40%) | |
| College graduate and above | 184 (27.59%) | 33 (19.08%) | 217 (25.83%) | |
| Race (N, %)* | 0.006 | |||
| White | 548 (81.31%) | 126 (18.69%) | 674 (80.24%) | |
| Non-white | 119 (71.69%) | 47 (28.31%) | 166 (19.76%) | |
| Family characteristics | ||||
| Household size | 2.30 ± 0.03 | 2.38 ± 0.07 | 2.31 ± 0.03 | 0.27 |
| Family wealth (N, %) | 0.10 | |||
| Household asset < $50 000 | 148 (75.51%) | 48 (24.49%) | 196 (25%) | |
| Household asset ≥ $50 000 | 476 (80.95%) | 112 (19.05%) | 588 (75.00%) | |
| Share household work (N, %) | <0.001 | |||
| Less than half the time | 198 (71.48%) | 79 (28.52%) | 277 (32.98) | |
| More than half the time | 469 (83.30%) | 94 (16.70%) | 563 (67.02%) | |
| Have a confidante | 0.002 | |||
| No | 176 (72.73%) | 66 (27.27%) | 242 (28.84%) | |
| Yes | 490 (82.08%) | 107 (17.92%) | 597 (71.16%) | |
| Baseline clinical characteristics (mean, SE) | ||||
| Cognitive screening score | 5.56 ± 0.03 | 5.46 ± 0.06 | 5.54 ± 0.05 | 0.10 |
| Number of chronic disease | 3.74 ± 0.07 | 3.79 ± 0.15 | 3.75 ± 0.07 | 0.79 |
| Quality of life | 5.50 ± 0.07 | 5.23 ± 0.16 | 5.44 ± 0.07 | 0.10 |
| Mental Component Summary (MCS) 12 | 42.41 ± 0.29 | 41.73 ± 0.54 | 42.27 ± 0.25 | 0.28 |
| Physical Component Summary (PCS) 12 | 40.87 ± 0.30 | 40.93 ± 0.56 | 40.88 ± 0.26 | 0.92 |
| General health score | 3.29 ± 0.43 | 3.32 ± 0.89 | 3.30 ± 0.04 | 0.78 |
| Sheehan disability score | 4.59 ± 0.10 | 4.84 ± 0.19 | 4.64 ± 0.09 | 0.26 |
| Baseline HSCL score | 1.63 ± 0.02 | 1.83 ± 0.04 | 1.67 ± 0.02 | <0.001 |
| 24-Month depression-free days | 343.07 ± 8.51 | 290.43 ± 15.92 | 332.2 ± 7.54 | 0.005 |
IMPACT, Improving Mood, Promoting Access to Collaborative Treatment for late-life depression trial; HSCL, Hopkins symptom checklist.