Assessing the impact of comorbidity in the older population

A new method of classifying prognostic comorbidity in longitudinal studies: Development and validation

1987 • 44,619 citations

CUMULATIVE ILLNESS RATING SCALE

1968 • 2,184 citations

Rating chronic medical illness burden in geropsychiatric practice and research: Application of the Cumulative Illness Rating Scale

1992 • 1,867 citations

The pre-therapeutic classification of co-morbidity in chronic disease

1970 • 1,405 citations

The Effect of Comorbidity on 3-Year Survival of Women with Primary Breast Cancer

1994 • 735 citations

The importance of classifying initial co-morbidity in evaluating the outcome of diabetes mellitus

1974 • 669 citations

Maintaining Mobility in Late Life. I. Demographic Characteristics and Chronic Conditions

1993 • 574 citations

Patterns of Care Related to Age of Breast Cancer Patients

1987 • 547 citations

The Importance of Co-existent Disease in the Occurrence of Postoperative Complications and One-Year Recovery in Patients Undergoing Total Hip Replacement

1993 • 493 citations

Comorbidity and Its Impact on Disability

1989 • 428 citations

Long-term physical functioning in persons with knee osteoarthritis from NHANES I: Effects of comorbid medical conditions

1994 • 226 citations

The national institute on aging and the national cancer institute seer collaborative study on comorbidity and early diagnosis of cancer in the elderly

1994 • 226 citations

Problems of Comorbidity in Mortality After Prostatectomy

1992 • 150 citations

The Relationship between Disease and Function and Perceived Health in Very Frail Elders

1994 • 102 citations

Patterns of care related to age of breast cancer patients

1987 • 96 citations

Comorbidity and functional status in older women with breast cancer: implications for screening, treatment, and prognosis.

1992 • 86 citations

Clinical assessments as predictors of one year survival after hospitalization: Implications for prognostic stratification

1988 • 74 citations

Functional capacity after cardiac surgery in elderly patients

1994 • 62 citations

Rheumatoid arthritis and comorbidity.

1990 • 58 citations

Problems of comorbidity in mortality after prostatectomy

1992 • 50 citations