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. Author manuscript; available in PMC: 2019 Mar 1.
Published in final edited form as: Mov Disord. 2018 Jan 3;33(3):472–478. doi: 10.1002/mds.27239

Table 2.

Relationship of Tobacco Use, Alcohol Use and Phenoconversion among Subjects with CAG ≥ 37

TOBACCO Median (25th, 75th Percentiles) Did Not Phenoconvert (N = 211) Phenoconverted (N = 36) Hazard Ratio (95% CI) P-Value

History of Tobacco Use
 Never 105 (85%) 18 (15%) 1.00 0.44
 Former 51 (89%) 6 (11%) 0.65 (0.25, 1.66)
 Current 46 (81%) 11 (19%) 1.28 (0.58, 2.86)

Current Exposure: # Cigarettes/Day
 None 0 (0, 0) 167 (87%) 24 (13%) 1.00 0.35
 Current Smoker 12 (5, 20) 29 (78%) 8 (22%) 1.52 (0.64, 3.62)

Cumulative Exposure: Pack Years
 None 0.0 (0.0, 0.0) 113 (86%) 19 (14%) 1.00 0.64
 Current/Past Smoker 9.8 (1.1, 19.0) 77 (87%) 12 (13%) 0.84 (0.39, 1.78)

ALCOHOL Median (25th, 75th Percentiles) Did Not Phenoconvert (N = 211) Phenoconverted (N = 36) Hazard Ratio (95% CI) P-Value

History of Alcohol Consumption
 Never 45 (82%) 10 (18%) 1.00 0.57
 Former 20 (91%) 2 (9%) 0.46 (0.10, 2.18)
 Current 136 (86%) 22 (14%) 1.02 (0.45, 2.29)

Current Alcohol Exposure: grams alcohol/day
 None 0.0 (0.0, 0.0) 66 (85%) 12 (15%) 1.00 0.61
 Moderate 3.1 (1.1, 3.9) 48 (80%) 12 (20%) 1.50 (0.64, 3.53)
 High 18.1 (12.2, 33.0) 56 (92%) 5 (8%) 1.02 (0.34, 3.01)

Cumulative Beer Exposure: grams alcohol/Day * years
 None 0 (0, 0) 82 (81%) 19 (19%) 1.00 0.99
 Moderate 39 (20, 82) 50 (88%) 7 (12%) 1.03 (0.42, 2.55)
 High 369 (235, 822) 51 (91%) 5 (9%) 0.97 (0.30, 3.10)

Cumulative Wine Exposure: grams alcohol/Day * years
 None 0 (0, 0) 113 (86%) 18 (14%) 1.00 0.86
 Moderate 25 (14, 37) 34 (83%) 7 (17%) 1.28 (0.52, 3.13)
 High 152 (88, 329) 35 (83%) 7 (17%) 1.06 (0.42, 2.69)

Cumulative Liquor Exposure: grams alcohol/Day * years
 None 0 (0, 0) 121 (86%) 19 (14%) 1.00 0.81
 Moderate 23 (11, 36) 34 (85%) 6 (15%) 0.71 (0.24, 2.09)
 High 171 (94, 386) 35 (88%) 5 (13%) 0.85 (0.31, 2.32)

Values shown are number (N, %) or medians (25th and 75th percentiles) and hazard ratios (95% confidence intervals). Probability (p)-values are from 2 degree of freedom (df) tests in separate models to predict phenoconversion, adjusted for age at time of environmental survey, gender, and CAG repeat length (continuous); the reference category is never or none. CI = confidence interval.