females distribution, experienced mental health issues. The survey indicated that anxiety is the most common condition with females suffering at 21% and males at a lower, 12%. Substance abuse Many Indigenous communities suffer from a range of health, social and legal problems associated with substance abuse of both legal and illegal drugs, including but not limited to alcohol abuse, petrol sniffing, the use illegal drugs such as methamphetamines and cannabis and smoking tobacco. Tobacco use has been estimated to be the "greatest contributor (23%) to the gap in the disease burden between Indigenous and non-Indigenous Australians", with Indigenous people more than 2.5% likely to smoke daily than non-Indigenous Australians. The 2004–05 National Aboriginal and Torres Strait Islander Health Survey (NATSIHS) by the ABS found that, after adjusting for age differences between the two populations, Indigenous adults were more than twice as likely as non-Indigenous adults to be current daily smokers of tobacco. NATSIHS 2004/5 found that the proportion of the Indigenous adult population engaged in "risky" and "high-risk" alcohol consumption (15%) was comparable with that of the non-Indigenous population (14%), based on age-standardised data. The definition of "risky" and "high-risk" consumption used is four or more standard drinks per day average for males, two or more for females. The 2007 National Drug Strategy Household Survey reported that Indigenous peoples were "more likely than other Australians to abstain from alcohol consumption (23.4% versus 16.8%) and also more likely to consume alcohol at risky or high-risk levels for harm in the short term (27.4% versus 20.1%)". These NDSHS comparisons are non-age-standardised; the paper notes that Indigenous figures are based on a sample of 372 people and care should be exercised when using Indigenous figures. A 2016 study reported that in the Northern Territory (which has the greatest proportion of Indigenous Australians than any other state or territory, at 32%), per capita alcohol consumption for adults was 1.5 times the national average. In addition to the health risks associated with alcohol use, there is a relationship among alcohol abuse, violence and trauma. There has been increasing media attention to this problem, but it defies simple analysis or solutions as the issues are complex and intertwined. The study attempted to collate existing data on the problems and attempts to address them, concluding that more funding is needed to investigate the feasibility and suitability of the various interventional approaches in the Northern Territory. Indigenous Australians