TABLE 2.
Comparison of the UPSIT scores in the three groups using linear models
| UPSIT SCORE | PD (N=41) | ILBD (N=47) | CONTROL (N=137) | P-VALUE |
|---|---|---|---|---|
| UPSIT score, mean (SD) | 15.8 (6.0) | 24.1 (8.6) | 27.8 (6.0) | <0.001 |
| P (pairwise comparison) | <0.001 | 0.003 | Reference | N/A |
| P (pairwise comparison) | <0.001 | Reference | 0.003 | N/A |
| Adjusted UPSIT score least square means (SE)* | 15.0 (1.1) | 24.7 (0.9) | 27.8 (0.5) | <0.001 |
| P (pairwise comparison) | <0.001 | 0.011 | Reference | N/A |
| P (pairwise comparison) | <0.001 | Reference | 0.011 | N/A |
*Adjusted for age at smell test, sex, and smoking history
UPSIT: University of Pennsylvania Smell Identification Test; PD: Parkinson’s disease; ILBD: incidental Lewy body disease; N/A: not applicable; SD: standard deviation; SE: standard error