Sentence Comprehension and Its Association with Executive Functions in Patients with Parkinson's Disease
Table 3
The interaction effects for the two groups combined and the differences for the interaction variables between the groups. Scores correct (median and interquartile range) for sentence comprehension of specific sentence types, obtained for the PD and healthy control subjects.
Interaction variables
PD patients
HC subjects
Both groups combined
Differences between groups
Sentence types
Median (IR)
Median (IR)
Congruence × length
−3.233
.001*
−.547
.584
Congruent short
19 (2)
20 (1)
Congruent long
20 (1)
20 (0)
Incongruent short
19 (1)
20 (1)
Incongruent long
19 (2)
19 (1)
Syntactic complexity × length
−1.341
.180
−.1
.920
Active short
20 (1)
20 (1)
Active long
20 (1)
20 (0)
Passive short
20 (2)
20 (1)
Passive long
19 (1)
19 (2)
Congruence × syntactic complexity
−.698
.485
−.506
.613
Congruent active
20 (1)
20 (0)
Congruent passive
19 (2)
20 (1)
Incongruent active
19.5 (1)
20 (1)
Incongruent passive
18.5 (2)
19 (2)
Congruence × length × syntactic complexity
−4.692
.001*
−.55
.583
The maximum possible per sentence type is 20. Statistical significance is indicated as follows: *. See Appendix B for a detailed description of the procedures to calculate the scores for the different sentence types. HC: healthy control, IR: Interquartile Range.
