{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T04:00:43Z","timestamp":1790308843839,"version":"4.1.0"},"reference-count":24,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T00:00:00Z","timestamp":1787011200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T00:00:00Z","timestamp":1787011200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Drug and Alcohol Review"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Harms associated with meth\/amphetamine use increase with cumulative exposure and overlap with age\u2010related health conditions. Understanding demographic shifts in drug treatment populations is required to ensure services meet evolving needs.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We analysed data from the Australian Institute of Health and Welfare's Alcohol and Other Drug Treatment Services National Minimum Data Set, including all treatment episodes where meth\/amphetamine was the primary drug of concern from 2003\u201304 (first data available) to 2023\u201324. Weighted linear regression assessed changes in age distribution over time.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The analysis included 697,280 treatment episodes, 35% (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u2009245,782) of whom were female. In 2003\u201304, people aged 20\u201329\u2009years were the largest group accessing treatment (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u20096835, 48%), but by 2023\u201324 those aged 30\u201339 were the largest group seeking treatment for meth\/amphetamine use (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u2009258,063, 39%,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). Over the last 20\u2009years, the most pronounced increases occurred among adults over the age of 50\u2009years, with treatment episodes increasing 16\u2010fold (from 64 to 4313,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001) among those aged 50\u201359 and 13\u2010fold (from 11 to 609,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001) among those aged 60\u2009years and over.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion and Conclusions<\/jats:title>\n                    <jats:p>The population seeking treatment for meth\/amphetamine use disorder is ageing, outpacing the general Australian population. The absence of policies and practice guidance for management of meth\/amphetamine use disorder and coexisting conditions among older people represents a critical gap. Treatment services must adapt to provide age\u2010appropriate care for older Australians, as the proportion of people over the age of 50 accessing treatment continues to grow.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/dar.70238","type":"journal-article","created":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T13:57:36Z","timestamp":1787061456000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["People Seeking Treatment for Meth\/Amphetamine Use Are Getting Older and Treatment Services Need to Adapt"],"prefix":"10.1111","volume":"45","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2343-5504","authenticated-orcid":false,"given":"Liam S.","family":"Acheson","sequence":"first","affiliation":[{"name":"National Centre for Clinical Research on Emerging Drugs UNSW Sydney  Sydney Australia"},{"name":"Alcohol and Drug Service St Vincent's Hospital Sydney  Sydney Australia"},{"name":"National Drug and Alcohol Research Centre UNSW Sydney  Sydney Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Krista J.","family":"Siefried","sequence":"additional","affiliation":[{"name":"National Centre for Clinical Research on Emerging Drugs UNSW Sydney  Sydney Australia"},{"name":"Alcohol and Drug Service St Vincent's Hospital Sydney  Sydney Australia"},{"name":"National Drug and Alcohol Research Centre UNSW Sydney  Sydney Australia"},{"name":"New South Wales Drug and Alcohol Clinical Research and Improvement Network New South Wales Ministry of Health  Sydney Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9178-9013","authenticated-orcid":false,"given":"Brendan","family":"Clifford","sequence":"additional","affiliation":[{"name":"National Centre for Clinical Research on Emerging Drugs UNSW Sydney  Sydney Australia"},{"name":"Alcohol and Drug Service St Vincent's Hospital Sydney  Sydney Australia"},{"name":"National Drug and Alcohol Research Centre UNSW Sydney  Sydney Australia"},{"name":"New South Wales Drug and Alcohol Clinical Research and Improvement Network New South Wales Ministry of Health  Sydney Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maureen","family":"Steele","sequence":"additional","affiliation":[{"name":"Centre for Alcohol and Other Drugs New South Wales Ministry of Health  Sydney Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathryn","family":"Fletcher","sequence":"additional","affiliation":[{"name":"National Centre for Clinical Research on Emerging Drugs UNSW Sydney  Sydney Australia"},{"name":"Alcohol and Drug Service St Vincent's Hospital Sydney  Sydney Australia"},{"name":"National Drug and Alcohol Research Centre UNSW Sydney  Sydney Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nadine","family":"Ezard","sequence":"additional","affiliation":[{"name":"National Centre for Clinical Research on Emerging Drugs UNSW Sydney  Sydney Australia"},{"name":"Alcohol and Drug Service St Vincent's Hospital Sydney  Sydney Australia"},{"name":"National Drug and Alcohol Research Centre UNSW Sydney  Sydney Australia"},{"name":"New South Wales Drug and Alcohol Clinical Research and Improvement Network New South Wales Ministry of Health  Sydney Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,18]]},"reference":[{"key":"e_1_2_11_2_1","volume-title":"World Drug Report 2024","author":"UNODC","year":"2024"},{"key":"e_1_2_11_3_1","volume-title":"Alcohol and Other Drug Treatment Services in Australia Annual Report","author":"Australian Institute of Health and Welfare","year":"2023"},{"key":"e_1_2_11_4_1","volume-title":"The Sydney Methamphetamine Market: Patterns of Supply, Use, Personal Harms and Social Consquences","author":"McKetin 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