Table 3 Analysis of risk factors for developing self-reported PD among prevalent patients.

Age group (per 10 years)

1.64 (1.29–2.08)

<0.001

1.66 (1.29–2.13)

<0.001

Male sex

1.23 (0.87–1.74)

0.23

1.53 (1.04–2.23)

0.029

Family history of PD

2.73 (1.69–4.42),

<0.001

2.51 (1.50–4.20)

<0.001

Current smoking

0.39 (0.21–0.72)

0.003

0.45 (0.24–0.85)

0.01

Ever smoking

1.00 (0.70–1.45)

0.97

1.32 (0.85–2.05)

0.21

Cigarette dose- per 10 pack-years

0.90 (0.82–0.99)

0.03

0.89 (0.80–0.98)

0.023