Male motorists are more likely to have a conviction for driving while under the influence of drink or drugs, new research has found.
Rural areas such as south Wales, northern Scotland and mid-Wales had the highest number of drivers with convictions, while motorists from London had the fewest, the study revealed.
Scaffolders and roofers were the worst offenders, while school pupils, paramedics and driving instructors were the most responsible motorists with the fewest convictions.
Analysis of more than 14 million car insurance quotes was carried out by comparison website Moneysupermarket.com over a period of 12 months.
The study found the total number of drink and drugs convictions declared on insurance quotes for main drivers was 76,968, a rate of five per 1,000 quotes. Overall, 3.4 million convictions were listed on insurance policies, with those for drink or drug-related motoring offences making up 4.3% of all offences.
Male drivers were the worst culprits, with more than 55,000 listing a drink or drug-related offence - a rate of 6.8 per 1,000 quotes, while just 16,000 female drivers had committed offences, or 2.7 per 1,000 quotes.
The research found drivers aged 20-29 had the highest conviction rate, at 8.7 per 1,000 quotes.
Drivers in Harrogate, Hereford and Cardiff were the worst offenders, at a rate of 8.2 convictions per 1,000 quotes, 7.3 per 1,000 quotes and 7.2 per 1,000 quotes respectively. This compares with just 3.8 per 1,000 in London.
Scaffolders topped the chart of professions with drink or drug-driving convictions, with 22.5 per 1,000 quotes, while school pupils had just 0.17 per 1,000 and paramedics 0.20 per 1,000.
Simon Best, chief executive of the Institute of Advanced Motorists, added: "Crashes caused by drinking and driving are totally avoidable and this survey shows there are still far too many male drivers willing to risk lives and livelihoods by consuming alcohol before they get behind the wheel. Police now use intelligence and public tip-offs to catch many drunk drivers so the stereotypical male drinker needs to know that they are being watched and they will be caught. Men simply need to take more personal responsibility and stick to the simple advice - if you drive, don't drink."