While it is recognized that need for care is the dominant factor influencing utilization of health services, little is known regarding the determinants of ambulatory care use by the noninstitutionalized elderly. It is important to examine the relationships among need factors and how physical and mental dysfunctions influence use of services. This study uses a LISREL model to identify the extent to which ambulatory care use was affected by physical or mental functioning and whether strong linkages would be exhibited by both factors.
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