Table 1

Characteristics of 91 male patients with Parkinson’s disease who returned the questionnaire

CharacteristicAll (n = 91)Free T <70 pg/ml (n = 19)Free T >70 pg/ml (n = 23)
BDI, Beck depression inventory; HRT, hormone replacement therapy; T, testosterone.
Age (years)
    Mean647161
    SD10910
    Range40 to 8955 to 8944 to 83
HRT (% of patients)10%21%4%
Free testosterone level (pg/ml)
    <7019 (45%)19 (100%)0 (0%)
    >7023 (55%)0 (0%)23 (100%)
    Mean82.149.0109.4
    SD41.613.636.7
    Range4.1 to 196.14.1 to 65.771.2 to 196.1
St Louis score
    ⩾385 (93%)18 (95%)22 (96%)
    <36 (7%)1 (5%)1 (4%)
    Mean5.96.65.8
    SD2.32.22.2
    Range0 to 102 to 102 to 10
BDI score
    Mean9.210.59.3
    SD6.06.75.4
    Range0 to 312 to 220 to 19
Number of antidepressants
Current:051 (56%)7 (37%)13 (57%)
137 (41%)11 (58%)10 (43%)
>13 (3%)1 (5%)0 (0%)
Lifetime:035 (38%)4 (21%)9 (39%)
127 (30%)10 (53%)4 (17%)
215 (16%)1 (5%)6 (26%)
310 (11%)3 (16%)2 (9%)
>34 (4%)1 (5%)2 (9%)