By Dr Andrea Schaffer

Journal articles

Chiu T; Brett J; Pearson S; Schaffer A, 2020, 'Patterns of pregabalin initiation and discontinuation after its subsidy in Australia', British Journal of Clinical Pharmacology, 86, pp. 1882 - 1887, http://dx.doi.org/10.1111/bcp.14276

Cairns R; Schaffer AL; Brown JA; Pearson SA; Buckley NA, 2020, 'Codeine use and harms in Australia: evaluating the effects of re-scheduling', Addiction, 115, pp. 451 - 459, http://dx.doi.org/10.1111/add.14798

De Oliveira Costa J; Schaffer AL; Medland NA; Litchfield M; Narayan SW; Guy R; McManus H; Pearson SA, 2020, 'Adherence to Antiretroviral Regimens in Australia: A Nationwide Cohort Study', AIDS Patient Care and STDs, 34, pp. 81 - 91, http://dx.doi.org/10.1089/apc.2019.0278

Schaffer AL; Pearson SA; Perez-Concha O; Dobbins T; Ward RL; Leeuwen MTV; Rhee JJ; Laaksonen MA; Craigen G; Vajdic CM; van Leeuwen M, 2020, 'Diagnostic and health service pathways to diagnosis of cancer-registry notified cancer of unknown primary site (CUP)', PLoS ONE, 15, pp. e0230373, http://dx.doi.org/10.1371/journal.pone.0230373

Tang M; Schaffer A; Kiely BE; Daniels B; Simes RJ; Lee CK; Pearson SA, 2019, 'Treatment patterns and survival in HER2-positive early breast cancer: a whole-of-population Australian cohort study (2007–2016)', British Journal of Cancer, 121, pp. 904 - 911, http://dx.doi.org/10.1038/s41416-019-0612-5

Schaffer AL; Buckley NA; Cairns R; Pearson S, 2019, 'Comparison of Prescribing Patterns before and after Implementation of a National Policy to Reduce Inappropriate Alprazolam Prescribing in Australia', JAMA Network Open, 2, pp. e1911590, http://dx.doi.org/10.1001/jamanetworkopen.2019.11590

Vajdic CM; Perez-Concha O; Rhee JJ; Dobbins T; Ward RL; Schaffer AL; van Leeuwen MT; Laaksonen MA; Craigen G; Pearson SA, 2019, 'Health-related predictors of cancer registry-notified cancer of unknown primary site (CUP)', Cancer Epidemiology, 61, pp. 1 - 7, http://dx.doi.org/10.1016/j.canep.2019.05.001

Vajdic CM; Perez-Concha O; Dobbins T; Ward RL; Schaffer AL; van Leeuwen MT; Rhee JJ; Laaksonen MA; Craigen G; Pearson SA, 2019, 'Demographic, social and lifestyle risk factors for cancer registry-notified cancer of unknown primary site (CUP)', Cancer Epidemiology, 60, pp. 156 - 161, http://dx.doi.org/10.1016/j.canep.2019.04.004

Tang M; Schaffer A; Pearson SA, 2019, 'Embracing the full spectrum of real-world data for cancer medicines research in Australia', Asia-Pacific Journal of Clinical Oncology, 15, pp. 186 - 187, http://dx.doi.org/10.1111/ajco.13121

Schaffer AL; Zoega H; Tran DT; Buckley NA; Pearson S; Havard A, 2019, 'Trajectories of antipsychotic use before and during pregnancy and associated maternal and birth characteristics', Australian & New Zealand Journal of Psychiatry, 53, pp. 000486741984776 - 000486741984776, http://dx.doi.org/10.1177/0004867419847764

Han D; Narayan SW; Zoega H; Litchfield M; Buckley NA; Pearson SA; Schaffer AL, 2019, 'Anticipating the effects of restricting high-dose preparations of strong opioids in Australia: A population-based analysis to inform the current policy debate', Pharmacoepidemiology and Drug Safety, 28, pp. 521 - 527, http://dx.doi.org/10.1002/pds.4755

Cairns R; Schaffer AL; Ryan N; Pearson SA; Buckley NA, 2019, 'Monitoring emerging prescription-drug related harms: a comment on Cairns et al. (2018)—in reply', Addiction, 114, pp. 572 - 573, http://dx.doi.org/10.1111/add.14531

Schaffer AL; Falster MO; Brieger D; Jorm LR; Wilson A; Hay M; Leeb K; Pearson S; Nasis A, 2019, 'Evidence-practice gaps in postdischarge initiation with oral anticoagulants in patients with atrial fibrillation', Journal of the American Heart Association, 8, pp. e014287, http://dx.doi.org/10.1161/JAHA.119.014287

Schaffer AL; Karanges EA; Buckley NA; Wilson A; Degenhardt L; Larance B; Pearson SA, 2019, 'Increases in controlled-release oxycodone utilisation following the subsidy of oxycodone with naloxone formulations: An Australian population-based study', Pharmacoepidemiology and Drug Safety, 28, pp. 97 - 105, http://dx.doi.org/10.1002/pds.4683

Morgan A; Joshy G; Schaffer A; Laba T-L; Litchfield M; Pearson S; Banks E, 2018, 'Rapid and substantial increases in anticoagulant use and expenditure in Australia following the introduction of new types of oral anticoagulants', PLoS ONE, 13, pp. e0208824, http://dx.doi.org/10.1371/journal.pone.0208824

Cairns R; Schaffer A; Ryan N; Pearson S; Buckley NA, 2018, 'Rising pregabalin use and misuse in Australia: trends in utilisation and intentional poisonings', Addiction, 114, pp. 1026 - 1034, http://dx.doi.org/10.1111/add.14412

Brett J; Schaffer A; Dobbins T; Buckley NA; Pearson SA, 2018, 'The impact of permissive and restrictive pharmaceutical policies on quetiapine dispensing: Evaluating a policy pendulum using interrupted time series analysis', Pharmacoepidemiology and Drug Safety, 27, pp. 439 - 446, http://dx.doi.org/10.1002/pds.4408

Schaffer A; Buckley NA; Degenhardt L; Larance B; Cairns R; Dobbins T; Pearson SA, 2018, 'Person-level changes in oxycodone use after the introduction of a tamper-resistant formulation in Australia', Canadian Medical Association Journal, 190, pp. E355 - E362, http://dx.doi.org/10.1503/cmaj.170666

Schaffer AL; Buckley NA; Pearson SA, 2017, 'Who benefits from fixed-dose combinations? Two-year statin adherence trajectories in initiators of combined amlodipine/atorvastatin therapy', Pharmacoepidemiology and Drug Safety, 26, pp. 1465 - 1473, http://dx.doi.org/10.1002/pds.4342

Joshi V; Adelstein BA; Schaffer A; Srasuebkul P; Dobbins T; Pearson SA, 2017, 'Validating a proxy for disease progression in metastatic cancer patients using prescribing and dispensing data', Asia-Pacific Journal of Clinical Oncology, 13, pp. e246 - e252, http://dx.doi.org/10.1111/ajco.12602

Schaffer AL; Buckley NA; Cairns R; Pearson SA, 2016, 'Interrupted time series analysis of the effect of rescheduling alprazolam in Australia: Taking control of prescription drug use', JAMA Internal Medicine, 176, pp. 1223 - 1225, http://dx.doi.org/10.1001/jamainternmed.2016.2992

Schaffer AL; Pearson SA; Buckley NA, 2016, 'How does prescribing for antihypertensive products stack up against guideline recommendations? An Australian population-based study (2006–2014)', British Journal of Clinical Pharmacology, 82, pp. 1134 - 1145, http://dx.doi.org/10.1111/bcp.13043

Mellish L; Karanges EA; Litchfield MJ; Schaffer AL; Blanch B; Daniels BJ; Segrave A; Pearson SA, 2015, 'The Australian Pharmaceutical Benefits Scheme data collection: A practical guide for researchers', BMC Research Notes, 8, pp. 634, http://dx.doi.org/10.1186/s13104-015-1616-8

Schaffer AL; Pearson SA; Dobbins TA; Er CC; Ward RL; Vajdic CM, 2015, 'Patterns of care and survival after a cancer of unknown primary (CUP) diagnosis: A population-based nested cohort study in Australian Government Department of Veterans' Affairs clients', Cancer Epidemiology, 39, pp. 578 - 584, http://dx.doi.org/10.1016/j.canep.2015.02.007

Schaffer AL; Buckley NA; Dobbins TA; Banks E; Pearson SA, 2015, 'The crux of the matter: Did the ABC’s catalyst program change Statin use in Australia?', Medical Journal of Australia, 202, pp. 591 - 595, http://dx.doi.org/10.5694/mja15.00103

Gnjidic D; Pearson SA; Hilmer SN; Basilakis J; Schaffer AL; Blyth FM; Banks E, 2015, 'Manual versus automated coding of free-text self-reported medication data in the 45 and Up Study: A validation study', Public Health Research and Practice, 25, http://dx.doi.org/10.17061/phrp2521518

Ganda K; Schaffer A; Seibel MJ, 2015, 'Predictors of re-fracture amongst patients managed within a secondary fracture prevention program: a 7-year prospective study', Osteoporosis International, 26, pp. 543 - 551, http://dx.doi.org/10.1007/s00198-014-2880-5

Vajdic CM; Ward RL, 2015, 'Health service utilisation and investigations before diagnosis of cancer of unknown primary (CUP): A population-based nested case-control study in Australian Government Department of Veterans' Affairs client', Cancer Epidemiology, 39, pp. 585 - 592

Vajdic CM; Er CC; Schaffer A; Dobbins T; Wyld L; Meagher NS; Barrett J; Ward RL; Pearson SA, 2014, 'An audit of cancer of unknown primary notifications: A cautionary tale for population health research using cancer registry data', Cancer Epidemiology, 38, pp. 460 - 464, http://dx.doi.org/10.1016/j.canep.2014.05.004

Ganda K; Schaffer A; Pearson S; Seibel MJ, 2014, 'Compliance and persistence to oral bisphosphonate therapy following initiation within a secondary fracture prevention program: A randomised controlled trial of specialist vs. non-specialist management', Osteoporosis International, 25, pp. 1345 - 1355, http://dx.doi.org/10.1007/s00198-013-2610-4

Pearson SA; Schaffer A, 2014, 'The use and impact of cancer medicines in routine clinical care: Methods and observations in a cohort of elderly Australians', BMJ Open, 4, pp. e004099, http://dx.doi.org/10.1136/bmjopen-2013-004099

Joshi V; Adelstein B-A; Schaffer A; Srasuebkul P; Dobbins T; Pearson S-A, 2013, 'A Proxy of Cancer Progression in Dispensing Claims: Validation and Performance', PHARMACOEPIDEMIOLOGY AND DRUG SAFETY, 22, pp. 221 - 222, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000334876101022&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Schaffer A; Muscatello D; Cretikos M; Gilmour R; Tobin S; Ward J, 2012, 'The impact of influenza A(H1N1)pdm09 compared with seasonal influenza on intensive care admissions in New South Wales, Australia, 2007 to 2010: A time series analysis', BMC Public Health, 12, pp. 869, http://dx.doi.org/10.1186/1471-2458-12-869

Schaffer A; Muscatello D; Broome R; Corbett S; Smith W, 2012, 'Emergency department visits, ambulance calls, and mortality associated with an exceptional heat wave in Sydney, Australia, 2011: A time-series analysis', Environmental Health: A Global Access Science Source, 11, pp. 3, http://dx.doi.org/10.1186/1476-069X-11-3

Schaffer A; Brotherton J; Booy R, 2007, 'Do human papillomavirus vaccines have any role in newborns and the prevention of recurrent respiratory papillomatosis in children?', Journal of Paediatrics and Child Health, 43, pp. 579 - 580, http://dx.doi.org/10.1111/j.1440-1754.2007.01205.x

Schaffer A; Koushik A; Trottier H; Duarte-Franco E; Mansour N; Arseneau J; Provencher D; Gilbert L; Gotlieb W; Ferenczy A; Coutlée F; Pollak MN; Franco EL; Matlashewski G; Roger M; Piché S; Capek A; Juras A; Michon B; Florakas C; Landry D; Grandmont D; L'Heureux D; Dalton D; Queiros E; Dauth E; Leclerc F; Stanimir G; Hum HS; Czitrom JP; Dubuc-Lissoir J; Lord J; Mayrand MH; Dupuis MJ; Martin M; Roleau M; Plamondon M; Fournier P; Gauthier P; Drouin P; Fournier P; Jeanbart P; Shatz R; Piché R; Hunt R, 2007, 'Insulin-like growth factor-I and risk of high-grade cervical intraepithelial neoplasia', Cancer Epidemiology Biomarkers and Prevention, 16, pp. 716 - 722, http://dx.doi.org/10.1158/1055-9965.EPI-06-0924

Brotherton J; Wang H; Schaffer A; Quinn H; Menzies R; Hull B; Lawrence GL; Wood J; Wood N; Rosewell A; Newall AT; MacIntyre CR; Macartney K; Gidding HF; McIntyre P; Booy R, 2007, 'Vaccine preventable diseases and vaccination coverage in Australia, 2003 to 2005', Annual report of the Australian Meningococcal Surveillance Programme, 2007--Amended, 31, pp. S1 - S152

Conference Papers

Tang M; Lee C; Lewis C; Boyer M; Brown B; Schaffer A; Pearson S-A; Simes R, 2022, 'Immune checkpoint inhibitors in advanced non-small cell lung cancer: Real-world survival and safety', in ASIA-PACIFIC JOURNAL OF CLINICAL ONCOLOGY, WILEY, pp. 30 - 31, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000879941200025&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Gisev N; Buizen L; Schaffer A; Daniels B; Pearson S-A; Dobbins T; Blyth F; Larney S; Currow DC; Wilson A; Degenhardt L, 2022, '| New South Wales, Long-term trajectories of prescription opioid use in New South Wales, Australia', in PHARMACOEPIDEMIOLOGY AND DRUG SAFETY, WILEY, pp. 371 - 372, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000859084401349&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Tang M; Daniels B; Aslam M; Schaffer AL; Pearson S-A, 2021, 'Changes in systemic cancer therapy in Australia during the COVID-19 pandemic: a population-based study', in ASIA-PACIFIC JOURNAL OF CLINICAL ONCOLOGY, WILEY, pp. 69 - 70, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000717281500042&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Tang M; Schaffer A; Kiely B; Daniels B; Lee C; Simes J; Pearson S-A, 2021, 'Cardiac assessment in Australian patients receiving trastuzumab for HER2+early breast cancer', in ASIA-PACIFIC JOURNAL OF CLINICAL ONCOLOGY, WILEY, pp. 30 - 30, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000693805000050&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Cohen J; Alvestad S; Suarez E; Schaffer A; Selmer R; Havard A; Bateman B; Zoega H; Kieler H; Odsbu I; Huybrechts K; Kjerpeseth L; Straub L; Leinonen M; Bjork M-H; Norgaard M; Gissler M; Ulrichsen S; Hernandez-Diaz S; Tomson T; Furu K, 2021, 'The Comparative Safety of Antiseizure Medication Polytherapy vs Valproate in Pregnancy and Risk of Major Congenital Malformations', in Pharmacoepidemiology and Drug Safety, John Wiley and Sons, Virtual, pp. 73 - 74, presented at International Conference on Pharmacoepidemiology and Therapeutic Risk Management, Virtual, 23 August 2021 - 25 August 2021

Schaffer AL; Cairns R; Brown JA; Gisev N; Buckley NA; Pearson S-A, 2020, 'Changes in sales of over-the-counter and prescription medicines after rescheduling of codeine to a prescription-only medicine in Australia', in PHARMACOEPIDEMIOLOGY AND DRUG SAFETY, WILEY, pp. 142 - 142, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000577640500298&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Schaffer A; Zoega H; Tran DT; Buckley N; Pearson S; Havard A, 2019, 'Trajectories of antipsychotic use before and during pregnancy and related maternal and birth characteristics', in Pharmacoepidemiology and Drug Safety, Wiley, Philadelphia, USA, pp. 216 - 216, presented at International Conference on Pharmacoepidemiology, Philadelphia, USA, 24 August 2019 - 28 August 2019, http://dx.doi.org/10.1002/pds.4864

Schaffer AL; Pearson S-A; Buckley NA, 2016, 'Does Concordance with Fixed-Dose Combination (FDC) Treatment Guidelines Improve Persistence? An Australian Population Based Cohort Study', in PHARMACOEPIDEMIOLOGY AND DRUG SAFETY, WILEY-BLACKWELL, pp. 292 - 292, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000385483502132&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Ganda K; Seibel M; Schaffer A; Pearson S, 2013, 'Adherence to Oral Bisphosphonate Therapy in a Fracture Liaison Service: A Randomised Controlled Trial', in JOURNAL OF BONE AND MINERAL RESEARCH, WILEY-BLACKWELL, MD, Baltimore, presented at Annual Meeting of the American-Society-for-Bone-and-Mineral-Research, MD, Baltimore, 04 October 2013 - 07 October 2013, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000332035804007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1

Conference Posters

Schaffer AL; buckley N; cairns R; pearson S, 2016, 'Up-Scheduling of Alprazolam to a “Controlled Drug”: Interrupted Time Series Analysis of Its Impact on Benzodiazepine (BZD) Prescribing, Dispensing and Poisonings in Australia.', Dublin, Ireland, Vol. 25, pp. 346 - 347, presented at 32nd International Conference on Pharmacoepidemiology & Therapeutic Risk Management, Dublin, Ireland, 25 August 2016 - 28 August 2016, http://dx.doi.org/10.1002/pds.4070

Conference Presentations

Schaffer A; Nassar N; Bruno C; Buckley N; Cairns R; Litchfield M; Paget S; Zoega H; Pearson S, 2021, 'Prescribed Medicine Use in a Nationwide Sample of Australian Children: Extent of Off-Label Use', presented at International Conference on Pharmacoepidemiology and Therapeutic Risk Management, Virtual, 23 August 2021 - 25 August 2021

Schaffer A; Brett J; Buckley N; Pearson S, 2021, 'Trajectories of Pregabalin Use and Their Association with Longitudinal Changes in Opioid and Benzodiazepine Daily Dose', presented at International Conference on Pharmacoepidemiology and Therapeutic Risk Management, Virtual, 23 August 2021 - 25 August 2021

Carland J; Stocker S; Reuter S; Stacy A; Schaffer A; Stefani M; Lau C; Kirubakaran R; Yang J; Shen C; Roberts D; Marriott D; Day R; Brett J, 2020, 'Evaluation of a pilot vancomycin therapeutic drug monitoring (TDM) service using an interrupted time series analysis', presented at ASCEPT, Virtual, 29 November 2020 - 02 December 2020

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