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. Author manuscript; available in PMC: 2009 Sep 15.
Published in final edited form as: Mov Disord. 2008 Sep 15;23(12):1747–1751. doi: 10.1002/mds.22084

Table 1.

Demographic and clinical characteristics of ET cases and controls

All ET Cases
(N = 267)
All Controls
(N = 331)
ET Cases with Harmane Data
(N = 147)
Controls with Harmane Data
(N = 187)

Demographic and Clinical Characteristics

Age in years 68.5 ± 14.4 66.6 ± 13.1 67.7 ± 14.6* 64.0 ± 13.8

Female gender 145 (54.3%) 194 (58.6%) 81 (55.1%) 107 (57.2%)

Years of education 14.8 ± 4.1 15.1 ± 3.5 15.0 ± 4.0 15.2 ± 3.6

Current cigarette smoker 16 (6.0%) 30 (9.1%) 10 (6.8%) 18 (9.6%)

Ever cigarette smoker 131 (49.1%) 169 (51.1%) 75 (51.0%) 98 (52.4%)

Cigarette pack-years 9.4 ± 19.6 11.0 ± 21.8 8.0 ± 17.9 9.6 ± 20.3

Years since last hospitalization 13.9 ± 20.5 14.6 ± 19.9 13.8 ± 18.9 14.5 ± 18.9

Cumulative Illness Rating Scale Score 5.6 ± 3.7 5.3 ± 3.7 5.4 ± 3.7 5.0 ± 3.8

Cancer

Cancer 66 (24.7%) 55 (16.6%)
 Colon* 7 (2.6%) 2 (0.6%)
 Skin 22 (8.2%) 17 (5.1%)
   Melanoma  8 (3.0%)  9 (2.7%)
   Basal Cell Carcinoma  9 (3.4%)  4 (1.2%)
   Squamous Cell Carcinoma  4 (1.5%)  3 (0.9%)
   Basal and Squamous  1 (0.4%)  1 (0.3%)
 Prostate 8 (3.0%) 7 (2.1%)
 Breast 18 (6.7%) 22 (6.6%)
 Uterine/ovarian 4 (1.5%) 4 (1.2%)
 Lung 1 (1.4%) 0 (0.0%)
 Other** 6 (2.2%) 3 (0.9%)
*

p < 0.05 compared with controls (χ2 and t tests).

**

including bladder, brain, kidney, thyroid, and lymphoma/leukemia.