Early Freezing of Gait: Atypical versus Typical Parkinson Disorders

Table 2

Results of postural stability and locomotion tests on freezing of gait (FOG) patients unresponsive to levodopa compared to patients responsive to levodopa.

Tests	FOG patients unresponsive to levodopa (); Number Abnl Test/total number	FOG patients responsive to levodopa (); Number Abnl Test/total number	Significance^†
FOG subtest >2	11/18	4/21	Odds ratio; 6.7, 95% CI 1.58–28.3; = 0.01
Pull subtest ≥3	15/18	11/21	Odds ratio; 4.6, 95% CI 1.00–20.5; = 0.05
Stand on one leg <3 seconds	15/18	11/21	Odds ratio; 4.6, 95% CI 3.1–20.1; = 0.05
Gait subtest ≥2	10/18	6/21	Odds ratio; 3.1; NS
Step length (meters)	0.45 ± 0.06	0.50 ± 0.404	= 0.05

Abnl: abnormal; FOG: freezing of gait.
Significant values are indicated in bold.