Table 2.

Differences in cognitive function measures between PD patients without and with hyponatremia

VariableTotalPatients without HyponatremiaPatients with HyponatremiaP Value
Patients, n (%)476426 (89.5)50 (10.5)
3MS score84.0±12.884.7±12.376.7±15.9<0.001
Cognitive impairment, n (%)132 (28.4)108 (25.8)24 (52.2)<0.001
Trails A (s)66 (47–95)65 (46–92)86 (64–120)0.002
Trails B (s)148 (106–235)144 (105–229)198 (132–415)0.004
Executive dysfunction, n (%) 134 (30)114 (28.1)20 (48.8)0.006
Immediate memory score73.1±17.973.7±17.967.3±17.80.02
Delayed memory score88.2±17.288.9±16.781.5±20.70.03
Language ability score92.5±13.893.0±13.787.8±13.40.02
  • Values are expressed as mean±SD or number (percentage). 3MS, Modified Mini-Mental State Examination; Trails A, trail making test A; Trails B, trail making test B.