“…Although estimates of hourly care received by people with AD are now available (Coughlin & Liu, 1989;Ernst & Hay, 1994;Ernst, Hay, Fenn, Tinklenberg, & Yesavage, 1997;Hu, Huang, & Cartwright, 1986;Huang, Cartwright, & Hu, 1985;0stbye & Crosse, 1994;Rice et al, 1993;Souetre etal., 1995;Stommel, Collins, & Given, 1994;Weinberger et al, 1993), these have been based, for the most part, on clinic or tertiary care referral series and have mainly involved cross-sectional samples. Much less frequent are analyses using longitudinal panels (Tennstedt, Crawford, & McKinlay, 1993).…”