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Table 3 Comparison of concentration of neuro-biochemicals among three groups

From: Case control study: magnetic resonance spectroscopy of brain in HIV infected patients

Variable Healthy controls Asymptomatic HIV HIV with CNS lesion p-value Post-hoc comparison
      I vs II I vs III II vs III
  Group 1 Group 2 Group 3     
  n = 30 (mmol/kg) n = 20 (mmol/kg) n = 21 (mmol/kg)     
tNAA        
Frontal 9.29 ± 3.11 10.67 ± 3.8 10.99 ± 4.11 0.24 0.56 0.44 1
Basal ganglia 7.31 ± 0.47 7.29 ± 0.74 6.71 ± 0.64 0.01 1 0.01 0.03
Lip09 + MM09        
FWM 5.59 ± 1.56 5.14 ± 1.79 8.69 ± 2.96 0.02 1 0.04 0.11
BG 5.87 ± 1.05 5.76 ± 1.95 5.59 ± 0.53 0.78 1 1 1
tCho        
FWM 2.08 ± 0.70 2.50 ± 0.99 2.62 ± 0.78 0.07 0.26 0.12 1
BG 1.62 ± 0.17 1.68 ± 0.28 1.56 ± 0.16 0.27 1 1 0.33
tCr        
Frontal 6.95 ± 2.56 8.9 ± 2.9 9.14 ± 3.04 0.02 0.05 0.05 1
Basal ganglia 6.95 ± 1.51 6.3 ± 1.77 6.62 ± 0.78 0.19 0.4 0.38 1
Glx (Glu + Gln)        
FWM 15.0 ± 6.06 17.08 ± 5.6 20.4 ± 7.8 0.05 0.82 0.05 0.47
BG 13.99 ± 2.89 14.12 ± 3.6 13.92 ± 1.67 0.98 1 1 1
  1. Oneway ANOVA followed by post-hoc comparison with Bonferroni correction