Visual impairment and nursing home placement in older Australians: the Blue Mountains Eye Study.

Abstract

PURPOSE:

To assess whether visual impairment at baseline is an independent contributor to subsequent nursing home placement during a 6-year follow-up.

METHODS:

3654 non-institutionalised people aged 49+ years (82.4% of those eligible) who participated in baseline examinations of the Blue Mountains Eye Study (1992-94) were followed during 1997-99. Presenting visual acuity was measured with current glasses and a standardised refraction performed. We defined visual impairment as visual acuity reduced to <or=20/40. Permanent nursing home admissions during follow-up were confirmed by the regional Aged Care Assessment Team and government subsidy payment records.

RESULTS:

At baseline, 511 participants had presenting visual impairment. After refraction, vision improved to 20/30 or better in 346 persons (68%, "correctable"), while 165 (32%) remained visually impaired. During follow-up, 162 study participants (5.0%) were admitted permanently to a nursing home. The age-adjusted 6-year incidence was 3.6% for participants with normal vision, 16.2% for those with visual impairment after best correction and 8.1% for those with "correctable" visual impairment. After adjusting for non-cognitive factors that predicted nursing home placement, the relative risk (RR) for nursing home admission among persons with visual impairment after best correction was 1.8 (95% CI 1.1-2.9). A similar magnitude of association was found among persons with "correctable" visual impairment (RR 2.1, 95% CI 1.4-3.1). For each line of reduction in presenting visual acuity at baseline, there was a 7% increased risk of subsequent nursing home placement.

CONCLUSIONS:

This study suggests that decreased vision may be a marker or contributing factor to subsequent nursing home placement in general older populations.

• Authors: Jie Jin Wang, Paul Mitchell, Robert G Cumming, Wayne Smith, Blue Mountains Eye Study
• Journal: Ophthalmic epidemiology (Ophthalmic Epidemiol) Vol. 10 Issue 1 Pg. 3-13 (Feb 2003) ISSN: 0928-6586 [Print] England
• PMID: 12607154 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Topics

• Aged
• Aged, 80 and over
• Comorbidity
• Female
• Health Status
• Homes for the Aged (statistics & numerical data)
• Humans
• Incidence
• Male
• Middle Aged
• New South Wales (epidemiology)
• Nursing Homes (statistics & numerical data)
• Patient Admission (statistics & numerical data)
• Risk
• Risk-Taking
• Vision Disorders (diagnosis, epidemiology, physiopathology)
• Visual Acuity (physiology)
• Visually Impaired Persons (statistics & numerical data)