Heavy drinking into older age adds up to 4cm (1.6in) to the waistline, new research suggests.
The study found that more than half of drinkers aged 59 and over have been heavy drinkers, and that this is linked to a larger waistline and increased stroke risk.
Researchers from University College London (UCL) examined the association between heavy drinking over a lifetime and a range of health indicators including cardiovascular disease.
Published in the Addiction journal, the study found that heavy alcohol consumption over a lifetime is associated with issues like higher blood pressure, even if drinking is stopped before 50.
It is also linked to poorer liver function, increased stroke risk, larger waist circumferences and body mass index (BMI) in later life.
However, scientists say stopping heavy drinking at any point in life is likely to be beneficial for overall health.
“Previous studies have focused on single snapshots of consumption, which has the potential to mask the cumulative effects of drinking.”
Researchers used data from the Whitehall II cohort – which collected information from UK civil servants aged 34–56 at study outset – since 1985–88.
The final sample for this study was made up of 4,820 adults aged between 59 and 83.
A heavy drinker was identified using the Alcohol Use Disorders Identification Test for Consumption (Audit-C), a standard screening tool for GPs.
It assesses how often people drink, how much, and how often they binge – have six or more drinks.
An example of a hazardous drinker would be someone who has three or four drinks, four or more times a week.
Participants were asked to complete the Audit-C retrospectively for each decade of their life.
This information was used to categorise their lifetime drinking pattern: never hazardous drinker; former early hazardous drinker – stopped before age 50; former later hazardous drinker – stopped at age 50 or after; current hazardous drinker; and consistent hazardous drinker – during every decade of their life.
Researchers found that more than half of drinkers (56%) had been hazardous drinkers at some point.
More than one fifth (21%) were current hazardous drinkers and 5% were consistent hazardous drinkers.
According to the study, former later, current and consistent hazardous drinkers had higher systolic blood pressure and poorer liver function than never hazardous drinkers.
Current hazardous drinkers had three times greater risk of stroke, the researchers found, while former later hazardous drinkers had approximately two times higher risk of non-cardiovascular disease mortality compared with never hazardous drinkers.
Lifetime hazardous drinkers had larger waist circumferences and BMI than never hazardous drinkers, the study found.
Former early hazardous drinkers on average had a waist 1.17cm (0.5in) larger than never hazardous drinkers, whereas former later hazardous drinkers, current hazardous drinkers and consistent hazardous drinkers had waist circumferences 1.88cm (0.75in), 2.44cm (1in) and 3.85cm (1.5in) larger respectively.
Dr Ng Fat said: “This suggests that the longer adults engage in heavy drinking, the larger their waistline in older age.
“That is why it is beneficial, along with other health benefits, that adults reduce heavy drinking earlier rather than later.”
– The research was carried out with the University of Cambridge and funded by the UK Medical Research Council, Alcohol Research UK and European Research Council.