Writers Are Common among Parkinson’s Disease Patients: A Longitudinal Study

Table 1

Number of patients and writers.

Patients	No.	Male (%)	Age at onset	Years of education	Smoking
Nonwriters	1272	805 (63%)	59.5	11.2	4.8
Writers	44	36 (82%)	60.4	17.4	1.8

Smoking measured as sum of packs of cigarette/day and years.