Table 2.
Frequency of parkinsonian symptoms according to diagnosis
| Unlikely NPH (n = 130) n (%) |
Possible NPH (n = 27) n (%) |
Probable NPH (n = 11) n (%) |
p value | |
|---|---|---|---|---|
| Bradykinesia in extremities (n = 167) | 41 (32) | 20 (74) | 10 (91) | <0.001 |
| Unilateral/bilateral | 16 (12)/25 (20) | 7 (26)/13 (48) | 0 (0)/10 (91) | |
| Only arm/hand | 28 (22) | 10 (37) | 4 (36) | |
| Only leg | 3 (2) | 3 (11) | 1 (9) | |
| Tremor at rest | 8 (6) | 1 (4) | 1 (9) | 0.690 |
| Unilateral/bilateral | 3 (2)/1 (1) | 0 (0)/1 (4) | 1 (9)/0 (0) | |
| Only arm | 4 (3) | 0 (0) | 1 (9) | |
| Only leg | 0 (0) | 0 (0) | 0 (0) | |
| Head/face tremor | 7 (5) | 0 (0) | 0 (0) | |
| Rigidity (n = 162) | 19 (15) | 6 (25) | 9 (82) | <0.001 |
| Unilateral/bilateral | 5 (4)/14 (11) | 2 (8)/4 (17) | 4 (36)/5 (46) | |
| Only arm | 8 (6) | 2 (8) | 1 (9) | |
| Only leg | 4 (3) | 0 (0) | 0 (0) | |
| Postural instability | 29 (22) | 18 (67) | 9 (82) | <0.001 |
NPH normal pressure hydrocephalus