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Background: Past research and instrument development in caregiving have focused on specific aspects of caregiving or specific disability groups. This paper reports the scale characteristics of a new generic instrument developed to assess the experience of caregiving, and the social and emotional well-being of caregivers and a comparison group of 'non-caregivers'., Methods: Using computer-assisted telephone technology, a random survey of 26000 households was conducted in Victoria, Australia to identify and interview 976 caregivers of people who were aged or had a long-term illness or disability of any kind, and 219 non-caregivers. Both groups were re-interviewed after 15 months. Scales administered on each occasion to caregivers and non-caregivers included life satisfaction, positive and negative affect, social support and overload; and to caregivers, caring role satisfaction, resentment and anger, and, in relation to the care recipient, measures of help provided and needed, severity of disability and behaviour problems., Results: On each occasion and with each sample all scales demonstrated a satisfactory reliability. With a subsample of caregiver-care-recipient dyads (N = 67), caregiver reports of severity of disability, level of helped needed and provided were validated externally by clinician assessments., Conclusions: A comprehensive instrument to assess the experience of caregiving was developed. It is relevant to a broad range of ages, levels and types of disability and care provided; and, in assessing health and well-being, to both caregivers and non-caregivers. Scales, including both positive and negative dimensions, have demonstrated good internal consistency on two occasions. The instrument is potentially useful in a range of research and practical settings.

Six hundred people diagnosed as schizophrenic by the specialist psychiatric services in Oxfordshire, between 1971 and 1973, were identified from the Oxford Psychiatric Case Register (OPCR). The person records of deaths and hospital discharges held by the Oxford Record Linkage Study (ORLS) wee used to examine the following items of information for members of this group: details of discharges from an surgical operations performed in Oxfordshire non-psychiatric hospitals in a 6-year period before and a 4-year period after the date of first inclusion in the OPCR, and details of deaths in a 4-year period after the date of first inclusion in the OPCR. The numbers of deaths, discharges and operations so observed in the study group were compared in age, sex and major diagnostic groups with the expected numbers derived from rates prevailing in the Oxfordshire population over the same periods. Observed deaths were twice as numerous as expected in both sexes, and the numbers of general hospital discharges were also higher than expected. Ischaemic heart disease was the commonest cause of death in both sexes, but did not account for the excessive numbers of hospital discharges. Trauma and poisoning accounted for the excess both of deaths in younger members of the study group and of general hospital discharges overall. Social and environmental difficulties associated with the diagnosis schizophrenia are likely to have contributed more than any inherent biological disadvantage to this excess.