TABLE 3.
Multivariate linear regression analyses of confounding factors for MTx testing.
| Coef. | SE | t | 95% CI | P-value | ||
| lower | upper | |||||
| MTx-C% | ||||||
| Age > 60 | −1.65 | 2.11 | −0.78 | −5.84 | 2.54 | 0.436 |
| Sex (female) | −1.29 | 1.99 | −0.65 | −5.23 | 2.66 | 0.519 |
| Education (> 6 year) | 2.19 | 2.47 | 0.89 | −2.71 | 7.10 | 0.377 |
| Mental job | −2.71 | 2.04 | −1.33 | −6.77 | 1.35 | 0.188 |
| Live alone | −4.62 | 4.92 | −0.94 | −14.40 | 5.15 | 0.350 |
| Sleep hours (> 9) | 1.02 | 2.56 | 0.40 | −4.08 | 6.11 | 0.692 |
| Homocysteinemia | −1.90 | 2.35 | −0.81 | −6.58 | 2.78 | 0.422 |
| Diabetics | −2.73 | 2.31 | −1.18 | −7.32 | 1.86 | 0.240 |
| Hypertension | 0.97 | 2.16 | 0.45 | −3.32 | 5.27 | 0.653 |
| Hyperlipemia | 1.03 | 2.05 | 0.50 | −3.04 | 5.09 | 0.618 |
| Brain trauma | 0.66 | 5.06 | 0.13 | −9.39 | 10.71 | 0.896 |
| Number of cerebral infarctions (> 1) | −0.46 | 2.31 | −0.20 | −5.05 | 4.13 | 0.843 |
| The differently affected regions of the AIS (posterior) | 3.09 | 2.01 | 1.53 | −0.91 | 7.08 | 0.129 |
| PSCI | −14.18 | 2.13 | −6.66 | −18.41 | −9.95 | < 0.001 |
| MTx-RT | ||||||
| Age > 60 | 0.12 | 0.07 | 1.78 | −0.01 | 0.25 | 0.078 |
| Sex (female) | 0.09 | 0.06 | 1.41 | −0.04 | 0.21 | 0.161 |
| Education (> 6 year) | −0.03 | 0.08 | −0.34 | −0.18 | 0.13 | 0.735 |
| Mental job | 0.06 | 0.06 | 0.87 | −0.07 | 0.18 | 0.385 |
| Live alone | 0.22 | 0.15 | 1.42 | −0.09 | 0.52 | 0.158 |
| Sleep hours (> 9) | 0.01 | 0.08 | 0.16 | −0.15 | 0.17 | 0.873 |
| Homocysteinemia | 0.04 | 0.07 | 0.48 | −0.11 | 0.18 | 0.630 |
| Diabetics | −0.03 | 0.07 | −0.35 | −0.17 | 0.12 | 0.728 |
| Hypertension | 0.03 | 0.07 | 0.45 | −0.10 | 0.16 | 0.651 |
| Hyperlipemia | −0.01 | 0.06 | −0.22 | −0.14 | 0.11 | 0.824 |
| Brain trauma | 0.10 | 0.16 | 0.62 | −0.22 | 0.41 | 0.534 |
| Number of cerebral infarctions (> 1) | 0.02 | 0.07 | 0.29 | −0.12 | 0.16 | 0.776 |
| The differently affected regions of the AIS (posterior) | 0.04 | 0.06 | 0.71 | −0.08 | 0.17 | 0.481 |
| PSCI | 0.29 | 0.07 | 4.44 | 0.16 | 0.43 | < 0.001 |
| MTx-CP | ||||||
| Age > 60 | −5.39 | 2.58 | −2.09 | −10.52 | −0.26 | 0.040 |
| Sex (female) | −5.13 | 2.43 | −2.11 | −9.96 | −0.30 | 0.038 |
| Education (> 6 year) | 1.68 | 3.02 | 0.56 | −4.32 | 7.68 | 0.578 |
| Mental job | −3.18 | 2.50 | −1.27 | −8.15 | 1.79 | 0.207 |
| Live alone | −14.61 | 6.02 | −2.43 | −26.57 | −2.65 | 0.017 |
| Sleep hours (> 9) | 0.72 | 3.14 | 0.23 | −5.51 | 6.95 | 0.819 |
| Homocysteinemia | −3.21 | 2.88 | −1.11 | −8.93 | 2.51 | 0.268 |
| Diabetics | −1.51 | 2.83 | −0.53 | −7.12 | 4.11 | 0.596 |
| Hypertension | −1.24 | 2.65 | −0.47 | −6.50 | 4.02 | 0.641 |
| Hyperlipemia | 1.57 | 2.51 | 0.63 | −3.41 | 6.55 | 0.532 |
| MTx-C% | ||||||
| Brain trauma | −4.26 | 6.19 | −0.69 | −16.55 | 8.04 | 0.493 |
| Number of cerebral infarctions (> 1) | −1.84 | 2.83 | −0.65 | −7.46 | 3.78 | 0.518 |
| The differently affected regions of the AIS (posterior) | 0.74 | 2.46 | 0.30 | −4.15 | 5.63 | 0.765 |
| PSCI | −19.11 | 2.61 | −7.33 | −24.29 | −13.93 | < 0.001 |
Coef, co-efficiency; CI, confidential interval; MTx-%C, MemTrax percent correct; MTx-RT, MemTrax response time (seconds); MTx-Cp = MTx-%C/MTx-RT; PSCI, post-stroke cognitive impairment; AIS, acute ischemic stroke.