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Table 1 Demographic and clinical characteristics of patients at PET and SPECT day acquisitions (n = 16)

From: Brain SPECT perfusion and PET metabolism as discordant biomarkers in major depressive disorder

  At PET day acquisition At SPECT day acquisition p value
Demographic characteristics
 Age (years, mean ± SD) 50.50 ± 16.3 50.06 ± 16.7 0.020
 Education    1.000
  > 12 years 5 5 1.000
  ≤ 12 years 10 10  
 Marital status    1.000
  Single 13 13 1.000
  Couple 3 3  
Clinical characteristics
 Depression duration (months) 136.44 ± 120 132.56 ± 121.48 0.023
 Number of depressive episodes 2.31 ± 1.9 2.31 ± 1.9 1.000
 SCID severity    
  Mild 2 2 1.000
  Moderate 1 1 1.000
  Severe 13 13 1.000
 Melancholic features 6 6 1.000
Treatments
 SSRIs 5 7 0.500
 SNRIs 6 5 0.300
 Tricyclics 2 2 1.000
 MAOIs 1 1 1.000
 Pramipexole 1 1 1.000
 Antipsychotics, first generation 1 1 1.000
 Antipsychotics, second generation 3 4 0.607
 Mood stabilizers 0 0 1.000
 Others 3 2 0.350
  1. Significant differences are in bold
  2. SCID structured clinical interview for DSM-IV, SSRI selective serotonin reuptake inhibitor, SNRI serotonin–norepinephrine reuptake inhibitor, MAOI monoamine oxidase inhibitors