Twelve-month fall outcomes among delirium subtypes.

Area of Science:

• Gerontology
• Neurology
• Public Health

Background:

• Falls are a major concern in long-term care facilities, leading to significant morbidity and mortality.
• Delirium is a common and serious condition in older adults, often associated with adverse outcomes.
• Understanding the relationship between delirium subtypes and fall risk is critical for effective prevention strategies.

Purpose of the Study:

• To investigate falls as a key outcome measure at 12 months.
• To compare fall rates between patients with and without delirium.
• To analyze fall risk across five distinct groups: noncases, hypoactive, hyperactive, mixed delirium, and subsyndromal delirium cases.

Main Methods:

• A longitudinal study followed 320 patients from rural long-term care facilities for 12 months after a 28-day delirium surveillance period.
• Fall events were meticulously recorded, with the date of the first fall serving as the primary statistical referent.
• Data were censored for deaths occurring during the follow-up period to ensure accurate analysis.

Main Results:

• Analysis revealed significant differences in functional independence and medication counts across the five groups (p < .001).
• All delirium subtypes exhibited a higher percentage of falls compared to noncases at 12 months.
• Subsyndromal delirium cases showed a statistically significant increase in fall risk, and two patients died from fall-related injuries.

Conclusions:

• Delirium, in its various forms including subsyndromal, is associated with an elevated risk of falls.
• There is a clear need for heightened surveillance and proactive fall prevention measures for individuals experiencing transient cognitive changes like delirium.
• These interventions are important even after the acute phase of delirium has resolved, highlighting the long-term impact on fall risk.