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Table 1 Individual-level primary and secondary outcomes

From: A multicomponent family support intervention in intensive care units: study protocol for a multicenter cluster-randomized trial (FICUS Trial)

Domain/construct

Measurea

Range

Cronbach’s αb

T0

T1

T2

T3

T4

Quality of family care

 Satisfaction with care (primary outcome)

Family satisfaction with ICU care (FS-ICU-24R)

0–100

> .85

 

X

   

 Quality of communication

Questionnaire on Quality of Physician-Patient Interaction (QQPPI-14)

1–5

.95

 

X

   

 Support from nurses

Family Perceived Support Questionnaire (ICE-FPSQ-14)

14–70

> 0.87

 

X

   

Family management

 Family functioning

Family Assessment Device - General Functioning Scale (FAD-GF-12)

1–4

.87

X

X

X

X

X

 Family resilience

Brief Resilience Scale (BRS-6)c

1–5

.85

X

X

X

X

X

Mental health

 Subjective well-being

Satisfaction with Life Scale (SWLS-5)

5–35

.89–.92

X

X

X

X

X

WHO-5 Well-Being Index (WHO-5)

0–100

.92

X

X

X

X

X

Adapted VAS on Quality of Life (QoL-VAS)

0–100

n/a

X

X

X

X

X

 Psychological distress

Distress Thermometer (DT)

0–10

n/a

X

X

X

X

X

Impact of Events Scale-6 (IES-6)

0–4

.80

X

X

X

X

X

Hospital Anxiety and Depression Scale (HADS-14)

0–21

> .80

X

X

X

X

X

  1. aUse of German versions of measures
  2. bReferences for Cronbach’s alpha are listed in the text
  3. cAdapted for family