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Table 3 Concurrent validity - Pearson correlation coefficients between the SCQ domains and the concurrent questionnaires (SF-36, PANSS and PSP) at baseline in the caregiver analysis set (N = 358)

From: Assessing the impact on caregivers of patients with schizophrenia: psychometric validation of the Schizophrenia Caregiver Questionnaire (SCQ)

   SCQ domains
Scales Domains HI-TS HI-P HI-E HI-S HI-DL ODC PD PC EC FA FDP FIC WP
SF-36 Physical Functioning -0.22 -0.21 -0.19 -0.24 -0.20 -0.15 -0.20 -0.07 -0.15 -0.11 -0.11 -0.23 -0.21
Role Physical -0.20 -0.20 -0.15 -0.22 -0.20 -0.16 -0.15 -0.11 -0.17 -0.08 -0.06 -0.20 -0.18
Bodily Pain -0.24 -0.23 -0.21 -0.22 -0.22 -0.16 -0.17 -0.14 -0.12 -0.10 -0.10 -0.22 -0.27
General Health Perceptions -0.39 -0.39 -0.34 -0.37 -0.36 -0.27 -0.18 -0.20 -0.29 -0.23 -0.12 -0.25 -0.34
Vitality -0.46 -0.45 -0.40 -0.43 -0.45 -0.34 -0.24 -0.23 -0.31 -0.29 -0.15 -0.25 -0.38
Social Functioning -0.43 -0.43 -0.37 -0.41 -0.41 -0.33 -0.23 -0.29 -0.33 -0.25 -0.19 -0.32 -0.37
Role Emotional -0.41 -0.38 -0.38 -0.37 -0.39 -0.28 -0.20 -0.26 -0.29 -0.21 -0.14 -0.28 -0.31
Mental Health -0.56 -0.51 -0.53 -0.51 -0.51 -0.42 -0.32 -0.26 -0.37 -0.32 -0.20 -0.37 -0.51
PCS -0.15 -0.16 -0.11 -0.17 -0.14 -0.10 -0.13 -0.07 -0.11 -0.06 -0.06 -0.17 -0.17
MCS -0.56 -0.53 -0.52 -0.50 -0.53 -0.42 -0.27 -0.32 -0.39 -0.33 -0.20 -0.34 -0.46
PANSS Positive symptoms 0.31 0.26 0.31 0.27 0.30 0.27 0.29 0.17 0.28 0.25 0.18 0.24 0.24
Negative symptoms 0.22 0.19 0.19 0.19 0.25 0.21 0.24 0.07 0.24 0.11 0.16 0.24 0.19
PSP PSP total -0.21 -0.18 -0.16 -0.22 -0.24 -0.23 -0.21 -0.11 -0.16 -0.10 -0.17 -0.17 -0.11
  1. PSP Personal and Social Performance Scale, PANSS Positive and Negative Syndrome Scale, HI-TS Humanistic impact – total score, HI-P Humanistic impact - Physical, HI-E Humanistic impact - Emotional, HI-S Humanistic impact - Social, HI-DL Humanistic impact - Daily life, ODC Overall difficulty of caregiving, PD Patient Dependence, PC Perception of caregiving, EC Exhaustion with caregiving, FA Feeling alone, FDP Financial dependence of the patient, FIC Financial impact of caregiving, WP Worries for the patient
  2. Pearson's correlations; In bold, 0.40 < correlations < 0.60