TABLE 3.
Baseline consistency between the Jankovic, Schiess, and Kang classification systems.
| Schiess classification |
Kang classification |
||||||
| Baseline N = 283 (100%) | TDS 49 (17.3%) |
ARS 213 (75.3%) |
MixedS 21 (7.4%) |
TDK 124 (43.8%) |
ARK 135 (47.7%) |
MixedK 24 (8.5%) |
|
| Jankovic classification |
TD 83 (29.3%) |
37 44.6%/75.5% |
33 39.8%/15.5% |
13 15.7%/61.9% |
64 77.1%/51.6% |
14 16.9%/10.4% |
5 6.0%/20.8% |
|
PIGD 159 (56.2%) |
5 3.1%/10.2% |
151 95.0%/70.9% |
3 1.9%/14.3% |
32 20.1%/25.8% |
110 69.2%/81.5% |
17 10.7%/70.8% |
|
|
Indeterminate 41 (14.5%) |
7 17.1%/14.3% |
29 70.7%/13.6% |
5 12.2%/23.8% |
28 68.3%/22.6% |
11 26.8%/8.1% |
2 4.9%/8.3% |
|
In each cell, the number of patients observed and their proportions in rows and columns are shown. For example, in the TD/indeterminate/PIGD and TDS/mixedS/ARS classification system, 37 patients were classified as TD subtype, which accounted for 44.6% of the 83 TD patients and 75.5% of the 49 TDS patients. There was fair agreement between the TD/indeterminate/PIGD and TDS/mixedS/ARS classification systems (κS = 0.383 ± 0.044). There was fair agreement between the TD/indeterminate/PIGD and TDK/mixedK/ARK classification systems (κK = 0.360 ± 0.042). There was fair agreement between the TDS/mixedS/ARS and TDK/mixedK/ARK classification systems (κSK = 0.368 ± 0.038). TD, tremor-dominant; PIGD, postural instability and gait difficulty; AR, akinetic-rigid.