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Table 4 Descriptive statistics for FROM-16-scores and GHS-scores baseline (t1) and retest (t2) and measures of reliability and criterion validity

From: Validation of the German version of the Family Reported Outcome Measure (FROM-16) to assess the impact of disease on the partner or family member

  t1 FROM-16 Total Score t1 caregivers General Health Score (GHS) t2 FROM-16 Total Score t2 caregivers General Health Score (GHS)
Valid answers 74 90 67 83
Mean (SD) 16.8 (6.6) 6.1 (1.9) 16.1 (7.2) 6.1 (2.0)
Median (interquartile range) 17 (12–21.3) 6 (5–8) 16 (11–21) 6 (5–8)
Min–Max 0–31 2–10 0–31 0–10
Floor 1 2 1
Ceiling 2 2
Internal consistency:     
Cronbach’s α α = 0.859   α = 0.894  
Reproducibility (t1 and t2):     
ICC (95%CI) 0.87 (0.79–0.92)    
Criterion validity:     
Correlation of Total score with…   r = − 0.35
p = 0.002
  r = − 0.48
p < 0.001
Correlation of Emotional score with…   r = − 0.32
p = 0.003
  r = − 0.39
p = 0.001
Correlation of Personal and Social Life score with…   r = − 0.33
p = 0.003
  r = − 0.48
p < 0.001