Alcoholism in the elderly

Definition and classification. Alcohol use disorder is a problematic pattern of use causing clinically significant impairment or distress. In older adults it is classified by onset: early-onset ("survivors"), about two-thirds, with lifelong drinking, more physical damage and more personality and social disruption; and late-onset ("reactors"), about one-third, beginning after 60 in response to bereavement, retirement, loneliness, pain or physical illness, with better prognosis and better treatment response.

Altered pharmacokinetics — why safe limits are lower. Reduced total body water and lean body mass raise the blood alcohol concentration for any given intake; reduced hepatic metabolism and first-pass gastric alcohol dehydrogenase prolong exposure; and there is increased CNS sensitivity. The same drink produces a substantially higher blood level and greater impairment than in a younger adult, so recommended limits are lower — no more than about one standard drink per day and two on any occasion above 65 years.

Why it is missed. Older people present with physical problems rather than with a complaint of drinking; symptoms are attributed to ageing or dementia — falls, confusion, incontinence, self-neglect, malnutrition, poor diabetic or hypertensive control, insomnia and depression. There is stigma and under-reporting, an absence of the usual work and legal markers in a retired person, and screening tools validated in the young. Clinicians simply do not ask.

Consequences in old age. Falls, fractures and head injury (including chronic subdural haematoma); cognitive impairment, alcohol-related brain damage and Wernicke–Korsakoff syndrome; peripheral neuropathy and cerebellar degeneration; liver disease, pancreatitis, gastritis and GI bleeding; hypertension, cardiomyopathy and atrial fibrillation ("holiday heart"); malnutrition and thiamine, folate and B12 deficiency; osteoporosis; cancer; depression and increased suicide risk; and drug interactions with benzodiazepines, opioids, warfarin, paracetamol, metformin and antihypertensives. A prior history of alcoholism predisposes to later benzodiazepine misuse.

Screening and assessment. Ask every older patient — quantity, frequency, pattern, and the timeline of onset. Tools: the CAGE questionnaire and the Short Michigan Alcohol Screening Test — Geriatric version (SMAST-G), which is specifically validated for older adults, plus AUDIT-C. Corroborate with an informant. Investigations: CBC with MCV, liver function including GGT, blood sugar (mg/dL), electrolytes (mEq/L), magnesium, albumin, INR, vitamin B12 and folate, and CT head where there has been a fall or confusion. Screening for alcohol misuse, depression and delirium is recommended for all elderly people attending the emergency department.

Management. Detoxification where dependence exists — ideally as an inpatient in frail older adults, using CIWA-Ar-guided short-acting benzodiazepines such as lorazepam (safer where liver function is impaired), with parenteral thiamine before any glucose load to prevent Wernicke's encephalopathy; withdrawal is more likely to be complicated by confusion and delirium tremens than in younger adults. Then rehabilitation delivered concurrently, not consecutively, across physical, psychological and social domains. Age-specific, non-confrontational programmes that promote self-esteem, tolerance and peer relationships achieve roughly twice the abstinence of confrontational programmes, and improve retention. Add brief interventions and motivational interviewing, treat comorbid depression, pain and insomnia, rebuild the social network, and consider relapse-prevention pharmacotherapy — naltrexone or acamprosate, with disulfiram generally avoided in older adults. Outcomes in older patients are at least as good as in younger patients.

No safe level of alcohol for cancer risk (2023–2025). The WHO statement in The Lancet Public Health (2023) concluded that no level of alcohol consumption is safe for health, since alcohol is a Group 1 carcinogen, and the US Surgeon General's Advisory of January 2025 identified alcohol as the third leading preventable cause of cancer and called for cancer warning labels. This has removed the older "cardioprotective" framing based on J-shaped curves now attributed to abstainer bias. For older adults this reinforces lower recommended limits, routine screening at every contact, and brief intervention, and aligns with the 2023 AGS Beers Criteria caution against combining alcohol with benzodiazepines, opioids or gabapentinoids.