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. Author manuscript; available in PMC: 2018 Jul 1.
Published in final edited form as: J Geriatr Psychiatry Neurol. 2017 Jul;30(4):220–227. doi: 10.1177/0891988717711807

Table 2.

Summary of Conditional Mixed Effects Models for Speed and Accuracy of Task Completion on Measures of Everyday Function.

Financial Task Accuracy Financial Task Speed TIADL Accuracy TIADL Speed UFOV Risk Category RST Speed

Effect Estimate SE Estimate SE Estimate SE Estimate SE Estimate SE Estimate SE
Fixed effects
Intercept 130.29*** 1.61 0.31*** 0.02 28.53*** 0.12   85.27***   7.56   1.47*** 0.12 3.29*** 0.26
Time   −0.52 1.09 −0.01 0.01   0.05 0.05     7.49   6.68 −0.07 0.04 −0.01 0.09
Time2     0.10 0.31    —    —    —    —   −1.21   1.82    —    —    —    —
Age   −0.53*** 0.14 0.01*** 0.00 −0.02* 0.01     2.35***   0.60   0.04*** 0.01 0.10*** 0.02
Diagnosisa −12.10*** 2.28 0.09** 0.03 −0.59** 0.17   59.88*** 10.76   0.90*** 0.15 1.18** 0.36
Diagnosisa × Time     3.23* 1.62 0.02 0.01 −0.10 0.08 −30.42** 10.24   0.02 0.06 0.34* 0.14
Diagnosisa × Time2   −1.63** 0.47    —    —    —    —   12.01***   2.83    —    —    —    —

Notes.

a

Cognitively normal peers were the reference group.

Abbreviations: FCI, Financial Capacity Instrument; UFOV, Useful Field of View; TIADL, Timed Instrumental Activities of Daily Living; RST, Road Signs Test; Diagnosis, Baseline Diagnosis. Age was centered at the mean, 69.57 years. The values represented in the Diagnosis row are the baseline differences in intercept for participants with MCI relative to controls on each task. Time2 refers to the rate of change over time.

*

p<.05, two tailed;

**

p<.01, two tailed;

***

p<.001, two tailed.