National Drugs Strategy Household Survey (NDSHS)
* Estimate has a relative standard error of 25% to 50% and should be used with caution.
** Estimate has a high level of sampling error (relative standard error of 51% to 90%), meaning that it is unsuitable for most uses.
# Statistically significant change between 2016 and 2019.
n.p. not published because of small numbers, confidentiality or other concerns about the quality of the data.
(a) According to 2009 NHMRC guideline 1: On average, had more than 2 standard drinks per day.
(b) State results do not include data from the 8 Indigenous remote communities interviewed in the NT in 2019. These data are included in national estimates.
(b) Consumed at least a full serve alcohol, but has not had an alcoholic drink not in the previous 12 months.
Note: The calculation of drinking status and alcohol risk variables was updated for all years in 2019. Trend data may not match previously published results.
Source: NDSHS 2019

National Drugs Strategy Household Survey (NDSHS)
* Estimate has a relative standard error of 25% to 50% and should be used with caution.
** Estimate has a high level of sampling error (relative standard error of 51% to 90%), meaning that it is unsuitable for most uses.
# Statistically significant change between 2016 and 2019.
n.p. not published because of small numbers, confidentiality or other concerns about the quality of the data.
(a) Used at least 1 of 16 classes of illicit drugs in the previous 12 months in 2019. The number and type of illicit drug used varied over time.
(aa) Used the specified drug in the previous 12 months.
(ab) Used in the previous 12 months.
(ac) Used in the previous 12 months for non medical purposes.
(b) State results do not include data from the 8 Indigenous remote communities interviewed in the NT in 2019. These data are included in national estimates.
(bb) Excludes over-the-counter medications such as paracetamol and aspirin.
(c) Includes people who reported smoking daily, weekly or less than weekly.
(d) Consumed an alcoholic drink in the previous 12 months.
(e) For non-medical purposes.
(f) Illicit use of at least 1 of 12 classes of drugs (excluding pharmaceuticals) in the previous 12 months in 2019. The number and type of drug used varied over time.
(g) Excludes over-the-counter medications such as paracetamol and aspirin.
(h) Includes use of heroin, non-medical use of pain-killers/pain-relievers and opioids or non-medical use of methadone/buprenorphine.
(i) Used at least 1 of 16 classes of illicit drugs in the previous 12 months in 2019. The number and type of illicit drug used varied over time.
Notes
1. Smoking status in 2010 has been revised. Trend data may not match previously published results.
2. The calculation of drinking status and alcohol risk variables was updated for all years in 2019. Trend data may not match previously published results.
3. In 2016, pain-killer/pain-relievers and opioids sections were combined into one section and references and questions about use of non-opioid over-the-counter drugs such as paracetamol and aspirin were removed. Data are not considered comparable to previous survey waves.
4. The NDSHS offers introductory text for each class of drug, including examples of the drugs included. Examples for hallucinogens, inhalants and New and Emerging Psychoactive Substances were changed in 2019, which may have impacted trend results since 2016.
5. State results do not include data from the 8 Indigenous remote communities interviewed in the NT in 2019. These data are included in national estimates.
6. Age-standardisation has been revised in 2019. Trend data may not match previously published results.
Source: NDSHS 2019