Table 1 Core set of used instruments

 Participation

Index zur Messung von Einschränkungen der Teilhabe (IMET) [19, 24]

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 Psychological distress n

Center for Epidemiological Studies-Depression (CES-D) [27]

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 General health complaints

Symptom Checklist 90 Revised (SCL-90-R) [28]

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 Subjective health–related quality of life

World Health Organization Quality of Life-BREF (WHOQUOL-BREF) [29, 30]

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 Social support

Fragebogen zur sozialen Unterstützung (F – SozU) [31]

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 Performance in different areas of life

Single scales [32, 33]

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 Support offers

Single items

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 Height, weight, smoking

Single items [34]

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 Socio-demographic data

Deck & Röckelein 1999 [35]

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