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Table 2 Linear mixed model for repeated measures of 208 caregiver/care receiver dyads assessed at baseline and 12-month follow-up (intervention N = 105, control N = 103)

From: The effect of psychosocial support on caregivers’ perceived criticism and emotional over-involvement of persons with dementia: an assessor-blinded randomized controlled trial

Variable Baseline score Follow-up score Between-group differences at follow-up (95% CI) P-value
Caregivers
 RSS
  Intervention 25.0 24.9 1.12 (−1.23 to 3.48) 0.35
  Control 23.5 23.9   
 GDS
  Intervention a 7.7 7.6 1.70 (0.41 to 3.0) 0.01
  Control a 5.7 6.2   
 FEERS CC
  Intervention 3.8 3.3 0.16 (− 0.41 to 0.73) 0.59
  Control 3.4 3.4   
 FEERS EOI
  Intervention 6.1 6.5 0.17 (−0.5 to 0.84) 0.61
  Control 5.9 6.3   
 FEERS TOTAL
  Intervention 10.0 9.8 0.36 (−0.62 to 1.34) 0.47
  Control 9.3 9.7   
Care receivers
 MMSE
  Intervention a 21.0 17.5 −0.78 (−1.78 to 0.22) 0.12
  Control a 21.5 18.5   
 NPI
  Intervention a 4.8 5.0 −0.29 (−0.83 to 0.26) 0.31
  Control a 5.4 4.9   
 IADL
  Intervention 22.2 25.0 0.48 (−0.73 to 1.69) 0.44
  Control 21.4 24.6   
 Cornell
  Intervention a 8.2 7.5 0.34 (−0.81 to 1.49) 0.57
  Control a 7.9 7.1   
  1. Positive values reflect a decrease in scores compared to baseline. a = Some missing data. FEERS CC Felt Expressed Emotion Rating Scale; criticism, range 0–5. FEERS EOI Felt Expressed Emotion Rating Scale; emotional over involvement, range 0–5, RSS Relatives’ Stress Scale, range 0–6, GDS Geriatric Depression Scale, range 0 to 30, MMSE Mini Mental State Examination, range 0–30, NPI Neuropsychiatric Inventory (only presence of symptoms, range 0–12), IADL Instrumental Activities of Daily Living, range 7–13. Cornell, range 0–38