The report released earlier this week revealed in 2011-12 more than 30 per cent of Tasmanians aged 18-24 years were daily or occasional tobacco smokers.

More than 23 per cent of Tasmanian women continued to smoke during pregnancy with the rate among teenage mothers in 2010 set at an alarming 46.8per cent.

The Tasmanian Tobacco Coalition convenes the Smoke Free Pregnancy Working Group.

It also promotes the use of a flowchart on nicotine replacement therapy in pregnancy developed by the Tasmanian Alcohol and Drug Service.

Other cut smoking campaigns include a Butt out for Bubs pilot being run by Tasmanian Medicare Local, according to Health and Human Services' latest Kids Come First update.

Launceston General Hospital women's and children's co- director Sue McBeath said while smoking by mothers remained a problem, obesity in pregnant women had increased significantly,.

"It has been the biggest thing that has changed in my 25 years in this area," Ms McBeath said.

This week's State of Public Health 2013 reported that one in four Tasmanian pregnant women were obese at the time of conception.

Ms McBeath said the LGH had just bought special lifting equipment for the first time that was appropriate for lifting pregnant women.

She said staff were also forced to use high-tech scanning equipment with obese patients because the traditional midwife skills of feeling a patient's tummy to see how and where the baby was sitting didn't work.

Launceston general practitioner Leanne Jones said the community had probably become used to seeing more obese women so no longer regarded it as unusual.