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Table 2 Associations between oxidative stress level (TBARS) and perceptual functions after adjustments for age and sex

From: Brain mediators of systemic oxidative stress on perceptual impairments in Parkinson’s disease

Clinical variable Correlation coefficient p value
Performance IQ −0.266 0.062
Perceptual organization index −0.299 0.035*
Picture completion −0.270 0.058
Block design −0.262 0.066
Matrix reasoning −0.337 0.017*
Digit symbol −0.286 0.044*
  1. The results of partial correlation analysis between oxidative stress level and perceptual functions (adjusted for age, sex and education) were illustrated as correlation coefficients and corresponding p values
  2. TBARS thiobarbituric acid reactive substances
  3. * Indicates a P value of less than 0.05