Population ageing is raising dilemmas regarding health and social care policies for older people.1 Beyond questions about service funding and provision, issues relating to changes in demographic mix, social and cultural expectations must be addressed. It is widely accepted that countries should develop an integrated approach to health and social care services in ways that can respond to the complex and changing needs of the growing numbers of older people. Accurate, clear and consistent information is required to inform policy making as well as service planning and development.Residential long-term care (LTC) is a component of an integrated care service for older people who need ongoing health care and personal assistance at levels that are difficult or impossible to provide at home. The package of care delivered in a residential setting can be a mix of health and social services including personal care, nursing, supervision and/or other types of care.
2Sound information informs decisions that shape health services, and may be used to describe long-term trends and project future demand. Counting residents living in care settings should be straightforward -countries usually have licensing or certification schemes that identify approved care providers, and each resident usually stays in care for a distinct period with few excursions away from the facility. However, the way of counting depends upon the purpose. To capture residential LTC utilisation information, some countries use regular reports that care providers are obligated by authorities to provide. Some countries rely on census data; others generalise to the population based on information collected from subsets of facilities, e.g. those belonging to one service provider chain or from a random sample in a research study. Other sources of information include population surveys of disabled people or regional surveys.This study compares various New Zealand (NZ) estimates to illustrate differing estimates of utilisation of residential LTC. We suggest more reliable methods of reporting with a view to understand better within-country trends. We also consider the implications of our findings for international data collections