The number of young people smoking, drinking alcohol and using drugs are at the lowest levels ever recorded, according to new figures.

The proportion of 15-year-olds who drank alcohol in the last week fell to 19% in 2013, down from 34% in 2010 and for 13-year-olds to 4%, down from 14%. These were the lowest levels since 1990.

Among 15-year-olds, 9% had used drugs in the last month, down from 11% in 2010, while for 13-year-olds the figure was 2%, down from 3% in 2010 and the lowest since 1998.

The figures were published in the Scottish Schools Adolescent Lifestyle And Substance Use Survey (SALSUS) 2013 report, which provides trends on substance use and lifestyle issues among Scotland's young people.

The study found that 9% of 15-year-olds and 2% of 13-year-olds reported being a regular smoker, down from 13% and 3% respectively in 2010 and the lowest levels since 1982.

More than three-quarters (76%) of pupils reported that they had never smoked, up from 45% in 2002.

About eight in ten (82%) 15-year-olds and 96% of 13-year-olds reported they had never used drugs - the highest figure since the survey began in 1998.

Maureen Watt, minister designate for public health, said: "The findings of this report are encouraging, with smoking and alcohol use at the lowest levels recorded.

"This demonstrates real progress in protecting our young people from the harmful effects of alcohol, smoking and drugs.

"However there is still work to be done. Our alcohol framework contains over 40 measures to tackle alcohol misuse and we are consulting on stronger regulation of electronic cigarettes and proposals to further protect young people from second-hand smoke.

"We must also continue to ensure our young people have access to information, support and advice to make positive lifestyle choices."

The report also found that pupils who smoke are more likely to have family and friends that smoke.

More than six in ten (64%) of regular smokers reported that at least one parent smoked daily while 60% said that more than half their friends smoked.

Almost a quarter (24%) of all pupils surveyed said that someone smoked in their home every day or most days.

The survey, funded by the Scottish Government, also provided insight into attitudes of pupils and awareness of risk-taking behaviours, with smaller proportions of pupils considering it "okay to try" smoking or alcohol than in 2010.

The majority of pupils agreed or strongly agreed that their school provided them with the advice and support that they need to make important decisions about drinking alcohol, smoking and drugs.

The majority of pupils questioned considered themselves to be in good physical health.

However, pupils who were regular smokers, drank alcohol in the last week or took drugs were more likely to receive a lower Warwick-Edinburgh Mental Well-being Scale (WEMWBS) score - used to measure mental well-being.

Paul Wheelhouse, minister designate for community safety and legal affairs, said: "Today's statistics, highlighting the fact that drug use amongst young people is at its lowest levels ever recorded, is testament to the huge amount of work being done to tackle the scourge of illegal drug use in Scotland.

"The Scottish Government has an ambitious programme for substance misuse education to ensure that all of our young people have credible and accessible information and advice on drugs to help them make the right choices."

He added: "However, while there has clearly been encouraging progress, we are not complacent as the scourge of drugs has yet to be eliminated among young people and the wider population.

"Alongside our partners, we are tackling the damaging impact of drugs in Scotland and making recovery a reality for people, families and communities across Scotland."

The survey, conducted between September 2013 and February 2014, sampled more than 30,000 pupils in S2 and S4.

The study also found that 17% of 15-year-olds and 7% of 13-year-olds had ever tried e-cigarettes while 6% of regular and 2% of occasional smokers reported using them on a weekly basis.

The British Medical Association (BMA) Scotland called for tighter controls on the devices.

Dr Peter Bennie, chairman of the BMA in Scotland, said: "It is encouraging that a relatively small number of teenagers have used e-cigarettes but we must ensure that this figure is reduced further.

"Tighter controls are needed to ensure their use does not undermine current tobacco control measures and reinforce the normality of smoking behaviour.

"There is a need for research to understand the health impacts of e-cigarettes on the user and, in particular, the impact of long-term nicotine use.

"We believe that the sale of e-cigarettes should be appropriately regulated to ensure that they are not sold to those under the age of 18 and are not aggressively marketed to young people as tobacco was in the past.

"Any health claims must be substantiated by robust independent scientific evidence to ensure that the consumer is fully informed regarding potential benefits and risks of e-cigarettes."