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Table 4 Correlation between anxiety and depression and various parametric variables

From: Depression and anxiety among patients with Parkinson’s disease: frequency, risk factors, and impact on quality of life

Pearson correlation

HAM-D

HAM-A

UPDRS total

r value

.576b

.561b

P value

.0001

.0001

Disease duration

r value

-.014

.025

P value

.911

.846

Hoehn and Yahr

r value

.359b

.311a

P value

.004

.012

Age of onset

r value

-.066

-.364b

P value

.604

.003

Age

r value

-.084

-.344b

P value

.511

.005

MMSE

r value

-.302a

-.021

P value

.015

.871

  1. UPDRS Unified Parkinson’s Disease Rating Scale, HAM-D Hamilton Depression Rating Scale, HAM-A Hamilton Anxiety Rating Scale, MMSE Mini-Mental State Examination
  2. aCorrelation is significant at the 0.05 level (2-tailed)
  3. bCorrelation is significant at the 0.01 level (2-tailed)