Martin L.  Population aging policies in East Asia and the United States. Science . 1991;;251:527-532.
Rowe JW, Grossman E, Bond E.  Academic geriatrics for the year 2000: an institute of medicine report. N Engl J Med . 1987;;316:1425-1428.
Le Gall JR, Brun-Buisson C, Trunet P, Latournerie J, Chantereau S, Rapin M.  Influence of age, previous health status, and severity of acute illness on outcome from intensive care. Crit Care Med . 1982;;10:575-577.
Campion EW, Mulley AG, Goldstein RL, Barnett GO, Thibault E.  Medical intensive care for the elderly. JAMA . 1981;;246:2052-2056.
Cullen DJ, Keene R, Waternaux C, Kunsman JM, Caldera DL, Peterson H.  Results, charges and benefits of intensive care for critically ill patients: update 1983. Crit Care Med . 1984;;12:102-106.
Potgieter PD, Rosenthal E, Benatar SR.  Immediate and long-term survival in patients admitted to a respiratory ICU. Crit Care Med . 1985;;13:798-802.
McClish DK, Powell SH, Montenegro H, Nochomovitz M.  The impact of age on utilization of intensive care resources. J Am Geriatr Soc . 1987;;35: 983-988.
Mayer-Oakes SA, Oye RK, Leake B.  Predictors of mortality in older patients following intensive care: the importance of functional status. J Am Geriatr Soc . 1991;;39:862-868.
Mundt DJ, Gage RW, Lemeshow S, Pastides H, Teres D, Avrunin JS.  Intensive care unit patient follow-up: mortality, functional status, and return to work at six months. Arch Intern Med . 1989;;149:68-72.
Wu AW, Rubin HR, Rosen MJ.  Are elderly people less responsive to intensive care? J Am Geriatr Soc . 1990;;38:621-627.
Pesau B, Falger S, Berger E, et al.  Influence of age on outcome of mechanically ventilated patients in an intensive care unit. Crit Care Med . 1992;;20:489-492.
Callahan D.  Old age and new policy. JAMA . 1989;;261:905-906.
Levinsky NG.  Age as a criterion for rationing health care. N Engl J Med . 1990;;322:1813-1816.
Katz S, Downs TD, Cash HR, Grotz RC.  Progress in development of the index of ADL. Gerontologist .
(Spring)
1970;;pt 1:20-30.
Knaus WA, Draper EA, Wagner DP, Zimmerman JE.  APACHE II: a severity of disease classification system. Crit Care Med . 1985;;13:818-829.
Keene AR, Cullen DJ.  Therapeutic Intervention Scoring System: update 1983. Crit Care Med . 1983;;11:1-3.
Patrick DL, Danis M, Southerland LI, Hong G.  Quality of life following intensive care. J Gen Intern Med . 1988;;3:218-223.
Weissman MM, Sholomskas D, Pottenger M, Prusoff BA, Locke B.  Assessing depressive symptoms in five psychiatric populations: a validation study. Am J Epidemiol . 1977;;106:203-214.
Shrout PE, Yager TJ.  Reliability and validity of screening scales: effect of reducing scale length. J Clin Epidemiol . 1989;;42:69-78.
Danis M, Gerrity MS, Southerland LI, Patrick DL.  A comparison of patient, family and physician assessment of the value of medical intensive care. Crit Care Med . 1988;;16:594-600.
Thibault GE, Mulley AG, Barnett GO, et al.  Medical intensive care: indications, interventions and outcomes. N Engl J Med . 1980;;302:938-942.
Detsky AS, Stricker SC, Mulley AG, Thibault EG.  Prognosis, survival, and the expenditure of hospital resources for patients in an intensive care unit. N Engl J Med . 1981;;305:667-672.
Byrick RJ, Mindorff C, McKee L, Mudge B.  Cost-effectiveness of intensive care for respiratory failure patients. Crit Care Med . 1980;;8:332-337.
Slayter MA, James OF, Moore PG, Leeder SR.  Costs, severity of illness and outcome in intensive care. Anaesthesiol Intensive Care . 1986;;14:381-389.
Sage WM, Hurst CR, Silverman JF, Bortz WM.  Intensive care for the elderly: outcome of elective and nonelective admissions. J Am Geriatr Soc . 1987;; 35:312-318.
Oye RK, Bellamy PE.  Patterns of resource consumption in medical intensive care. Chest . 1991;;99: 685-689.
Riley SA.  Outcome prediction in intensive therapy. Intensive Crit Care Digest . 1991;;10:62-63.