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. 2022 Oct 31;79(12):1232–1241. doi: 10.1001/jamaneurol.2022.3718

Table 1. Summary Statistics of the Baseline Characteristics by Allocated Group of All Participants Who Progressed to the High-Dose Phase at 1 Month.

Characteristic No. (%)
Placebo (n = 109) Simvastatin (n = 107) Total (N = 216)
Age, mean (SD), y 64.8 (9.9) 65.9 (8.6) 65.3 (9.3)
Sex
Female 49 (45) 40 (37) 89 (41)
Male 60 (55) 67 (63) 127 (59)
Disease duration, mean (SD), y 9.8 (4.6) 9.5 (3.8) 9.7 (4.2)
Systolic blood pressure, mean (SD), mm Hg 128.9 (17.9) 125.7 (16.3) 127.3 (17.2)
BMI, mean (SD)a 26.8 (4.7) 26.2 (4.6) 26.5 (4.7)
MoCA score, mean (SD) 27.6 (2.4) 27.6 (2.2) 27.6 (2.3)
Ethnicityb
White 108 (99) 106 (99) 214 (99)
Other 1 (1) 1 (1) 2 (1)
Smoking status
Never 76 (70) 71 (66) 147 (68)
Ex-smoker 30 (27) 32 (30) 62 (29)
Light 3 (3) 3 (3) 6 (3)
Moderate 0 1 (1) 1 (0.5)
Relationship status
Single 7 (6) 5 (5) 12 (6)
Married or civil partnership 89 (82) 90 (84) 179 (83)
Separated 3 (3) 1 (1) 4 (2)
Divorced or partnership dissolved 6 (6) 7 (7) 13 (6)
Widowed or surviving partner 4 (4) 4 (4) 8 (4)
Living status
Live alone 10 (9) 12 (11) 22 (10)
Live with spouse or partner 95 (87) 92 (86) 187 (87)
Live with parent(s) 1 (1) 0 1 (0.5)
Live with children
<18 y 10 (9) 13 (12) 23 (11)
≥18 y 17 (16) 14 (13) 31 (14)
Live with nonfamily 1 (1) 1 (1) 2 (1)
QRISK2 risk score
≥10% 51 (47) 49 (46) 100 (46)
Median (IQR) 9.2 (3.7-16.0) 8.6 (5.8-15.9) 9.0 (4.7-16.0)
Cholesterol, mean (SD), mg/dL
HDL 61.8 (19.3) 61.8 (19.3) 61.8 (19.3)
Total 189.2 (42.5) 189.2 (38.6) 189.2 (42.5)
Total/HDL ratio 3.2 (1.0) 3.3 (1.0) 3.2 (1.0)
Hoehn and Yahr stage
1.0-2.0 74 (68) 75 (70) 149 (69)
2.5-3.0 35 (32) 32 (30) 67 (31)

Abbreviations: BMI, body mass index; HDL, high-density lipoprotein; MoCA, Montreal Cognitive Assessment.

SI conversion factor: To convert cholesterol to mmol/L, multiply by 0.0259.

a

Calculated as weight in kilograms divided by height in meters squared.

b

Ethnicity was defined by investigators and assessed to facilitate description of the study sample. The other category included Indian and unreported.