Table 2.
Repeated measures models for trail making over time
| Endpoint | Variable | Estimate | P Value |
|---|---|---|---|
| Trail making A | Intercept | −1.0 | 0.8949 |
| Year 0 | — | — | |
| Year 1 (vs. Year 0) | −2.2 | <0.0001 | |
| Year 2 (vs. Year 0) | −3.0 | <0.0001 | |
| Medical treatment | 0.3 | 0.7530 | |
| Married | 1.0 | 0.2616 | |
| Age | 0.6 | <0.0001 | |
| High school education or less | 3.7 | <0.0001 | |
| Income < $30,000 | 0.5 | 0.6094 | |
| Beck Depression Inventory | 0.3 | 0.0059 | |
| PaO2 | −0.019 | 0.6681 | |
| PaCO2 | 0.103 | 0.1902 | |
| Years smoked times cigarettes per day | 0.00002 | 0.9824 | |
| Trail making B | Intercept | −56.7 | 0.0031 |
| Year 0 | — | — | |
| Year 1 (vs. Year 0) | 5.8 | <0.0001 | |
| Year 2 (vs. Year 0) | −3.3 | 0.0237 | |
| Medical treatment | 0.4 | 0.8344 | |
| Married | 1.8 | 0.4619 | |
| Age | 1.8 | <0.0001 | |
| High school education or less | 15.6 | <0.0001 | |
| Income <$30,000 | 3.0 | 0.1989 | |
| Beck Depression Inventory | 1.0 | 0.0004 | |
| PaO2 | 0.056 | 0.6222 | |
| PaCO2 | 0.503 | 0.0134 | |
| Years smoked times cigarettes per day | −0.001 | 0.4308 |