Table 3.
Summary of key variables entered into the survival model (continuous variables).
| Variable | Variable detail | Non-DS | DS | Total | |||
|---|---|---|---|---|---|---|---|
| Mean (SE) | Range | Mean (SE) | Range | Mean (SE) | Range | ||
| Years followed | As of July 2011 | 13.26 (0.25) | 0.59–16.10 | 12.26 (0.39) | 0.0–16.05 | 12.93 (0.21) | 0–16.10 |
| Age | Baseline | 43.06 (0.85) | 17–83 | 40.07 (0.92) | 20–61 | 42.08 (0.66) | 17–83 |
| DMR (baseline)* | Practical skills subscale score | 2.20 (0.24) | 0–16 | 0.98 (0.22) | 0–16 | 1.81 (0.18) | 0–16 |
| Reiss Screen baseline | Depression (Behavioral) | 1.30 (0.11) | 0–8 | 0.93 (0.13) | 0–7 | 1.18 (0.08) | 0–8 |
| Depression (Physical) | 1.33 (0.10) | 0–6 | 1.44 (0.16) | 0–7 | 1.36 (0.09) | 0–7 | |
| DMR change per year** | Sum of Cognitive Scores (SCS) | 0.33 (0.11) | −5.26–13.14 | 0.71 (0.18) | −2.12–11.99 | 0.45 (0.10) | −5.26–13.14 |
| DMR change per year** | Sum of Social Scores (SOS) | 0.50 (0.12) | −3.92–8.34 | 0.82 (0.23) | −6.84–11.60 | 0.61 (0.11) | −6.84 −11.60 |
*Higher scores indicate greater deficits.
**Higher scores indicate greater yearly increase in deficits between 1995 and 2001.