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Table 1 Demographic and clinical characteristics of test and control subjects

From: Selected serum cytokines and nitric oxide as potential multi-marker biosignature panels for Parkinson disease of varying durations: a case-control study

Test groups

Parkinson Disease (PD)

(n = 72)

Controls

(n = 56)

Variables

<  1 year PD

(n = 12)

1–3 years PD

(n = 30)

3–12 years PD

(n = 30)

Other neurological disorders

(n = 26)

Healthy individuals

(n = 30)

Age (years)

64.4 (±9.9)

66.5 (±10.0)

63.9 (±9.6)

57.2 (± 8.6)

51.0 (± 9.6)

Sex (% male)

66.7%

56.7%

60.0%

30.8%

56.7%

H-Y scale

1.36 (±0.45)

2.24 (±0.96)

2.38 (±1.36)

  1. All data are presented as mean ± standard deviation where applicable. The following statistical tests were used; independent-samples T test for continuous variables and chi-square test for categorical variables (P > 0.05 for all characteristics analysed)