Table 1.

Demographic and clinical features of Parkinson’s disease (PD) patients with and without suicidal ideation

Variables	With suicidal ideation (n=14)	Without suicidal ideation (n=106)	P-values
Demographic
Sex (male/female)	10/4	68/38	0.76
Age, years*	56.7±9.9	62.2±8.8	0.06
Education, years*	5.4±1.9	8.3±3.7	<0.001
Marital status, % married	10.2	18.2	0.28
PD-related
Duration, years*	10.5±6.7	6.7±1.8	0.003
Age of PD onset, years*	46.2±6.8	55.3±9.5	<0.001
Hoehn and Yahr stage*	2.4±0.7	2.1±0.7	0.136
Schwab and England score*	74.2±13.4	81.4±9.9	0.018
UPDRS motor score*	33.4±5.7	21.3±4.8	0.003
UPDRS dyskinesia*	4.14±1.7	0.38±0.3	<0.001
UPDRS motor fluctuation score*	2.86±0.3	0.62±0.2	0.003
L-Dopa dosage, mg*	1284.29±373.8	672.4±363	0.015
Psychiatric
HDRS score*	21.3±2.6	8.7±1.6	<0.001
Presence of depression (% yes)	14 (100)	29 (27.6)	<0.001
Positive history of ICD (% yes)	10 (71.4)	18 (17.0)	<0.001
Suicide Probability Scale score*	74.7±8.4	56±14.7	<0.001

Note:

^*Values presented as means ± standard deviation.

Abbreviations: UPDRS, Unified Parkinson’s Disease Rating Scale; HDRS, Hamilton Depression Rating Scale; ICD, impulse-control disorder.