Table 3

Outcomes from simple regression analyses of the predictive value of various shorter periods of patient-kept home diaries (independent variables) for the outcome of four weeks of diary data (dependent variable)

R 2 B (95% CI)p Value
B, regression coefficient; CI, confidence interval; R2, coefficient of determination.
Time in “off”
    1 day0.0150.11 (−0.28 to 0.51)0.561
    3 days0.4890.81 (0.45 to 1.16)<0.001
    1 week0.7361.02 (0.76 to 1.28)<0.001
    2 weeks0.9211.06 (0.92 to 1.19)<0.001
Time in “partial off”
    1 day0.0050.04 (−0.21 to 0.30)0.728
    3 days0.0950.27 (−0.09 to 0.64)0.135
    1 week0.3010.58 (0.20 to 0.97)0.005
    2 weeks0.5210.77 (0.45 to 1.08)<0.001
Time in “on”
    1 day0.002−0.03 (−0.40 to 0.33)0.849
    3 days0.7150.84 (0.615 to 1.08)<0.001
    1 week0.8670.99 (0.82 to 1.16)<0.001
    2 weeks0.9480.97 (0.87 to 1.07)<0.001
Time in “on with dyskinesias”
    1 day−0.0110.08 (−0.26 to 0.43)0.623
    3 days0.7710.98 (0.75 to 1.21)<0.001
    1 week0.9050.94 (0.81 to 1.07)<0.001
    2 weeks0.9651.02 (0.94 to 1.11)<0.001
Number of daily fluctuations
    1 day0.1150.42 (−0.08 to 0.91)0.097
    3 days0.6831.04 (0.74 to 1.35)<0.001
    1 week0.8891.05 (0.88 to 1.20)<0.001
    2 weeks0.9811.02 (0.96 to 1.08)<0.001