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Table 2 Comparison of general psychopathological parameters between 'anhedonic' and 'normal hedonic' schizophrenics

From: Anhedonia in schizophrenia and major depression: state or trait?

Psychopathological variables 'Normal hedonic' schizophrenics (n = 44) 'Anhedonic' schizophrenics (n = 36) Z value
Negative dimension (SANS total score) 32.35 ± 11.63 37.86 ± 11.41 -2.69*
Affective flattening 9.45 ± 6.58 12.00 ± 6.57 -1.84
Alogia 3.25 ± 3.03 3.60 ± 2.47 -0.31
Avolition/apathy 7.94 ± 2.95 9.00 ± 2.85 -1.67
Anhedonia/asociality 12.00 ± 3.73 13.26 ± 3.38 -0.79
Positive dimension 10.61 ± 10.43 10.82 ± 9.64 -0.14
Hallucinations 3.64 ± 5.96 3.41 ± 4.99 0.19
Delusions 6.96 ± 6.53 7.41 ± 7.29 -0.78
Disorganised dimension 8.61 ± 6.41 12.89 ± 10.58 -2.67*
Bizarre behaviour 1.32 ± 2.32 2.20 ± 3.01 -1.41
Formal thought disorders 1.03 ± 1.97 4.82 ± 7.22 -3.14**
Attentional impairment 2.03 ± 2.34 2.56 ± 2.80 -0.55
Depression (CDSS total score) 3.87 ± 4.11 4.23 ± 3.57 -0.69
  1. Mean ± standard deviation (SD) and Mann-Whitney Z test values are reported.
  2. *P < 0.05; **P < 0.01.
  3. CDSS = Calgary Depression Scale for Schizophrenics; SANS = Scale for the Assessment of Negative Symptoms.