Trends in the prevalence and comorbidities of diabetes mellitus in nursing home residents in the United States: 1995-2004

Abstract

OBJECTIVES: To estimate trends in the prevalence and comorbidities of diabetes mellitus (DM) in U.S. nursing homes from 1995 to 2004. DESIGN: SAS callable SUDAAN was used to adjust for the complex sample design and assess changes in prevalence of DM and comorbidities during the study period in the National Nursing Home Surveys. Trends were assessed using weighted least squares linear regression. Multiple logistic regressions were used to calculate predictive margins. SETTING: A continuing series of two-stage, cross-sectional probability national sampling surveys. PARTICIPANTS: Residents aged 55 and older: 1995 (n=7,722), 1997 (n=7,717), 1999 (n=7,809), and 2004 (n=12,786). MEASUREMENTS: DM and its comorbidities identified using a standard set of diagnosis codes. RESULTS: The estimated crude prevalence of DM increased from 16.9% in 1995 to 26.4% in 2004 in male nursing home residents and from 16.1% to 22.2% in female residents (all P