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. Author manuscript; available in PMC: 2017 Feb 1.
Published in final edited form as: Parkinsonism Relat Disord. 2015 Dec 19;23:57–61. doi: 10.1016/j.parkreldis.2015.12.005

Table 3.

Adjusted* OR for PD by history of head injury with loss of consciousness, excluding injuries in different time periods before the diagnosis date for cases and the equivalent time period for the controls.

Duration of Lagged Exposure Cases Controls OR (95% CI) p-value
Exposure lagged 10 years
    Never having a head injury 318 211 1.00 (Ref)
    Ever having a head injury with a loss of consciousness 61 19 1.57 (0.89, 2.80) 0.13
Exposure lagged 15 years
    Never having a head injury 320 213 1.00 (Ref)
    Ever having a head injury with a loss of consciousness 59 17 1.68 (0.92, 3.07) 0.09
Exposure lagged 20 years
    Never having a head injury 324 214 1.00 (Ref)
    Ever having a head injury with a loss of consciousness 55 16 1.58(0.85, 2.95) 0.14
*

Adjusted for ever having a head injury without loss of consciousness, gender, age, age squared, race, education, smoking status.