Table 1.
Characteristics of patients with Parkinson's disease (PD) and controls.
Table 2.
Odor identification in the study groups assessed with 16 Sniffin' sticks.
Table 3.
Estimates of proportional odds ratios (OR) with 95% confidence intervals (CI) of Parkinson's disease and age with joint effects on impairment of olfaction (anosmia or hyposmia) adjusted by the clock drawing test result.
Table 4.
Estimates of proportional odds ratios (OR) with 95% confidence intervals (CI) of subgroups of Parkinson's disease (PD) and age with joint effects on impairment of olfaction (anosmia and hyposmia) adjusted by the clock drawing test result.
Table 5.
Estimates of proportional odds ratios (OR) with 95% confidence intervals (CI) of disease severity on impairment of olfaction (anosmia and hyposmia) in Parkinson patients with age adjustment.
Table 6.
Correctly identified odors in the study groups sorted by the difference between controls (HC) and patients with Parkinson's disease (PD).
Table 7.
Classification of patients with Parkinson's disease (PD) based on Sniffin' sticks using random forests on all and selected odors with ten-fold cross-validation.
Figure 1.
Ranking of the odors with regard to their importance in achieving a good accuracy of classification based on the permutation accuracy of random forests.
High values of the permutation accuracy indicate important variables.