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Performance of the Tobacco, Alcohol, Prescription Medication, and Other Substance Use (TAPS) Tool for Substance Use Screening in Primary Care Patients
Open accessAbstract
BACKGROUND: Substance use, a leading cause of illness and death, is underidentified in medical practice. OBJECTIVE: The Tobacco, Alcohol, Prescription medication, and other Substance use (TAPS) tool was developed to address the need for a brief screening and assessment instrument that includes all commonly used substances and fits into clinical workflows. The goal of this study was to assess the performance of the TAPS tool in primary care patients. DESIGN: Multisite study, conducted within the National Drug Abuse Treatment Clinical Trials Network, comparing the TAPS tool with a reference standard measure. (ClinicalTrials.gov: NCT02110693). SETTING: 5 adult primary care clinics. PARTICIPANTS: 2000 adult patients consecutively recruited from clinic waiting areas. MEASUREMENTS: Interviewer- and self-administered versions of the TAPS tool were compared with a reference standard, the modified World Mental Health Composite International Diagnostic Interview (CIDI), which measures problem use and substance use disorder (SUD). RESULTS: Interviewer- and self-administered versions of the TAPS tool had similar diagnostic characteristics. For identifying problem use (at a cutoff of 1+), the TAPS tool had a sensitivity of 0.93 (95% CI, 0.90 to 0.95) and specificity of 0.87 (CI, 0.85 to 0.89) for tobacco and a sensitivity of 0.74 (CI, 0.70 to 0.78) and specificity of 0.79 (CI, 0.76 to 0.81) for alcohol. For problem use of illicit and prescription drugs, sensitivity ranged from 0.82 (CI, 0.76 to 0.87) for marijuana to 0.63 (CI, 0.47 to 0.78) for sedatives; specificity was 0.93 or higher. For identifying any SUD (at a cutoff of 2+), sensitivity was lower. LIMITATIONS: The low prevalence of some drug classes led to poor precision in some estimates. Research assistants were not blinded to participants' TAPS tool responses when they administered the CIDI. CONCLUSION: In a diverse population of adult primary care patients, the TAPS tool detected clinically relevant problem substance use. Although it also may detect tobacco, alcohol, and marijuana use disorders, further refinement is needed before it can be recommended broadly for SUD screening. PRIMARY FUNDING SOURCE: National Institute on Drug Abuse.
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“The Tobacco, Alcohol, Pre scription medication, and other Substance (TAPS) is another newer and briefer (four items) valid screening tool 155 .”
From Substance use disorders: a comprehensive update of classification, epidemiology, neurobiology, clinical aspects, treatment and prevention (2023) · cites this paper as [155]
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Citations
Cites
Longitudinal data analysis using generalized linear models
LIANG, K.-Y., & ZEGER, S. L. (1986) · Biometrika · doi:10.1093/biomet/73.1.13 · Cited by 18,550
Longitudinal Data Analysis for Discrete and Continuous Outcomes
Zeger, S. L., & Liang, K. (1986) · Biometrics · doi:10.2307/2531248 · Cited by 7,781
Actual Causes of Death in the United States, 2000
Mokdad, A. H. (2004) · JAMA · doi:10.1001/jama.291.10.1238 · Cited by 5,211
The Health consequences of smoking—50 years of progress : a report of the Surgeon General
Lushniak, B. D., Samet, J. M., Pechacek, T. F., Norman, L., & Taylor, P. A. (2014) · Cited by 4,990
Skinner, H. A. (1982) · Addictive Behaviors · doi:10.1016/0306-4603(82)90005-3 · Cited by 3,134 · cited 1×
“Neither the widely used Drug Abuse Screening Test (25, 51) nor the newer Screen of Drug Use (29) provides this level of detail.”
BackgroundRobins, L. N. (1988) · Archives of General Psychiatry · doi:10.1001/archpsyc.1988.01800360017003 · Cited by 2,909
Danaei, G., Ding, E. L., Mozaffarian, D., Taylor, B., Rehm, J., Murray, C. J. L., & Ezzati, M. (2009) · PLoS Medicine · doi:10.1371/journal.pmed.1000058 · Cited by 2,860
Dialysis Dose and Intradialytic Hypotension: Results from the HEMO Study
Causland, F. R. M., Brunelli, S. M., & Waikar, S. S. (2013) · American Journal of Nephrology · doi:10.1159/000355958 · Cited by 2,705
The Statistical Evaluation of Medical Tests for Classification and Prediction
PEPE, M. S. (2005) · Technometrics · doi:10.1198/tech.2005.s278 · Cited by 1,907
AUDIT‐C as a Brief Screen for Alcohol Misuse in Primary Care
Bradley, K. A., Rubinsky, A. D., Volk, R. J., Williams, E. C., Frank, D., & Kivlahan, D. R. (2007) · Alcoholism Clinical and Experimental Research · doi:10.1111/j.1530-0277.2007.00403.x · Cited by 1,634
The alcohol use disorders identification test: an update of research findings
Reinert, D. F., & Allen, J. P. (2007) · Alcoholism: Clinical and Experimental Research · doi:10.1111/j.1530-0277.2006.00295.x · Cited by 1,397
Tourangeau, R., & Smith, T. (1996) · Public Opinion Quarterly · doi:10.1086/297751 · Cited by 1,314
Validation of the alcohol smoking and substance involvement screening test (ASSIST)
Humeniuk, R., Ali, R., Babor, T. F., Farrell, M., Formigoni, M. L., Jittiwutikarn, J., De Lacerda, R. B., Ling, W., Marsden, J., Monteiro, M., et al. (2008) · Addiction · doi:10.1111/j.1360-0443.2007.02114.x · Cited by 1,144
Boca, F. K. D., & Darkes, J. (2003) · Addiction · doi:10.1046/j.1359-6357.2003.00586.x · Cited by 1,138
Babor, T. F., McRee, B. G., Kassebaum, P. A., Grimaldi, P. L., Ahmed, K., & Bray, J. (2007) · Substance Abuse · doi:10.1300/j465v28n03_03 · Cited by 1,100
A comprehensive review of the psychometric properties of the Drug Abuse Screening Test
Yudko, E., Lozhkina, O., & Fouts, A. (2007) · Journal of Substance Abuse Treatment · doi:10.1016/j.jsat.2006.08.002 · Cited by 906
Two Brief Alcohol-Screening Tests From the Alcohol Use Disorders Identification Test (AUDIT)
Bradley, K. A., Bush, K. R., Epler, A. J., Dobie, D. J., Davis, T. M., Sporleder, J. L., Maynard, C. C., Burman, M. L., & Kivlahan, D. R. (2003) · Archives of Internal Medicine · doi:10.1001/archinte.163.7.821 · Cited by 760
Whitlock, E. P., Polen, M. R., Green, C. A., Orleans, T., & Klein, J. D. (2004) · Annals of Internal Medicine · doi:10.7326/0003-4819-140-7-200404060-00017 · Cited by 728
Priorities Among Effective Clinical Preventive Services
Maciosek, M. V., Coffield, A. B., Edwards, N. M., Flottemesch, T. J., Goodman, M. J., & Solberg, L. I. (2006) · American Journal of Preventive Medicine · doi:10.1016/j.amepre.2006.03.012 · Cited by 627
Jarlais, D. C. D., Paone, D., Milliken, J., Turner, C. F., Miller, H. G., Gribble, J. N., Shi, Q., Hagan, H., & Friedman, S. R. (1999) · The Lancet · doi:10.1016/s0140-6736(98)07026-3 · Cited by 523
Arnsten, J. H., Demas, P., Grant, R. W., Gourevitch, M. N., Farzadegan, H., Howard, A. A., & Schoenbaum, E. E. (2002) · Journal of General Internal Medicine · doi:10.1046/j.1525-1497.2002.10644.x · Cited by 501
CDC grand rounds: prescription drug overdoses - a U.S. epidemic.
(2012) · PubMed · Cited by 494
A Single-Question Screening Test for Drug Use in Primary Care
Smith, P. C., Schmidt, S. M., Allensworth‐Davies, D., & Saitz, R. (2010) · Archives of Internal Medicine · doi:10.1001/archinternmed.2010.140 · Cited by 486
The Reliability of the CIDI‐SAM: a comprehensive substance abuse interview
Cottler, L. B., Robins, L. N., & Helzer, J. E. (1989) · British Journal of Addiction · doi:10.1111/j.1360-0443.1989.tb03060.x · Cited by 428
Moyer, V. A. (2013) · Annals of Internal Medicine · doi:10.7326/0003-4819-159-3-201308060-00652 · Cited by 426
Primary Care Validation of a Single-Question Alcohol Screening Test
Smith, P. C., Schmidt, S. M., Allensworth‐Davies, D., & Saitz, R. (2009) · Journal of General Internal Medicine · doi:10.1007/s11606-009-0928-6 · Cited by 416
Helping patients who drinks too much. A Clinician’s Guide
Agabio, R., Fantozzi, F., & Tossicodipendenze, C. E. D. R. M. D. (2006) · UNICA IRIS Institutional Research Information System (University of Cagliari) · Cited by 391
Medicare and Medicaid programs; electronic health record incentive program--stage 2. Final rule.
(2010) · PubMed · Cited by 360
Mutual Mistrust in the Medical Care of Drug Users. The Keys to the "Narc" Cabinet
Merrill, J. O., Rhodes, L. A., Deyo, R. A., Marlatt, G. A., & Bradley, K. A. (2002) · Journal of General Internal Medicine · doi:10.1046/j.1525-1497.2002.10625.x · Cited by 298
The use of verbal report methods in the development and testing of survey questionnaires
Willis, G., Royston, P., & Bercini, D. (1991) · Applied Cognitive Psychology · doi:10.1002/acp.2350050307 · Cited by 290
Primary Care Intervention to Reduce Alcohol Misuse
Solberg, L. I., Maciosek, M. V., & Edwards, N. M. (2008) · American Journal of Preventive Medicine · doi:10.1016/j.amepre.2007.09.035 · Cited by 284
Malta, M., Strathdee, S. A., Magnanini, M. M. F., & Bastos, F. I. (2008) · Addiction · doi:10.1111/j.1360-0443.2008.02269.x · Cited by 283
Screening and Brief Intervention for Drug Use in Primary Care: The ASPIRE Randomized Clinical Trial
Saitz, R., Palfai, T. P. A., Cheng, D. M., Alford, D. P., Bernstein, J. A., Lloyd-Travaglini, C. A., Meli, S. M., Chaisson, C. E., & Samet, J. H. (2014) · JAMA · doi:10.1001/jama.2014.7862 · Cited by 280
Newcombe, D., Humeniuk, R., & Ali, R. (2005) · Drug and Alcohol Review · doi:10.1080/09595230500170266 · Cited by 273
The evolving epidemiology of HIV/AIDS
Cock, K. M. D., Jaffe, H. W., & Curran, J. W. (2012) · AIDS · doi:10.1097/qad.0b013e328354622a · Cited by 251
Validity of self-reports in applied research on addictive behaviors: Fact or fiction?
Babor, T. F., Brown, J. H., & Boca, F. K. D. (1990) · Behavioral Assessment · Cited by 213
Roy-Byrne, P., Bumgardner, K., Krupski, A., Dunn, C., Ries, R., Donovan, D., West, I. I., Maynard, C., Atkins, D. C., Graves, M. C., et al. (2014) · JAMA · doi:10.1001/jama.2014.7860 · Cited by 188
Diagnostic accuracy of NicAlert cotinine test strips in saliva for verifying smoking status
Cooke, F., Bullen, C., Whittaker, R., McRobbie, H. J., Chen, M., & Walker, N. K. (2008) · Nicotine & Tobacco Research · doi:10.1080/14622200801978680 · Cited by 144
Interactions between Recreational Drugs and Antiretroviral Agents
Antoniou, T., & Tseng, A. L.-I. (2002) · Annals of Pharmacotherapy · doi:10.1345/aph.1a447 · Cited by 138
Ali, R. L., Meena, S., Eastwood, B., Richards, I., & Marsden, J. (2013) · Drug and Alcohol Dependence · doi:10.1016/j.drugalcdep.2013.03.001 · Cited by 137
Quality Concerns with Routine Alcohol Screening in VA Clinical Settings
Bradley, K. A., Lapham, G. T., Hawkins, E. J., Achtmeyer, C. E., Williams, E. C., Thomas, R. M., & Kivlahan, D. R. (2010) · Journal of General Internal Medicine · doi:10.1007/s11606-010-1509-4 · Cited by 133
Gryczynski, J., Kelly, S. M., Mitchell, S. G., Kirk, A. S., O’Grady, K. E., & Schwartz, R. P. (2014) · Addiction · doi:10.1111/add.12767 · Cited by 119
Self-citationCone, E. J., Presley, L. C., Lehrer, M., Seiter, W., Smith, M. L., Kardos, K. W., Fritch, D., Salamone, S. J., & Niedbala, R. S. (2002) · Journal of Analytical Toxicology · doi:10.1093/jat/26.8.541 · Cited by 112
Comparing assessments of DSM-IV substance dependence disorders using CIDI-SAM and SCAN
Compton, W. M., Cottler, L. B., Dorsey, K. B., Spitznagel, E. L., & Magera, D. E. (1996) · Drug and Alcohol Dependence · doi:10.1016/0376-8716(96)01249-5 · Cited by 102
McNeely, J., Cleland, C. M., Strauss, S. M., Palamar, J. J., Rotrosen, J., & Saitz, R. (2015) · Journal of General Internal Medicine · doi:10.1007/s11606-015-3391-6 · Cited by 98
Self-citationSaitz, R., Alford, D. P., Bernstein, J., Cheng, D. M., Samet, J., & Palfai, T. (2010) · Journal of Addiction Medicine · doi:10.1097/adm.0b013e3181db6b67 · Cited by 95
Forman, R. F., Svikis, D. S., Montoya, I. D., & BLAINE, J. D. (2004) · Journal of Substance Abuse Treatment · doi:10.1016/j.jsat.2004.03.012 · Cited by 91
Self-citationUnintentional Poisoning Deaths—United States, 1999-2004
(2007) · JAMA · doi:10.1001/jama.297.12.1309 · Cited by 90
McNeely, J., Strauss, S. M., Saitz, R., Cleland, C. M., Palamar, J. J., Rotrosen, J., & Gourevitch, M. N. (2015) · The American Journal of Medicine · doi:10.1016/j.amjmed.2015.02.007 · Cited by 89
Self-citationTesting Survey Questions: New Directions in Cognitive Interviewing
Campanelli, P. (1997) · Bulletin of Sociological Methodology/Bulletin de Méthodologie Sociologique · doi:10.1177/075910639705500103 · Cited by 86
McNeely, J., Strauss, S. M., Rotrosen, J., Ramautar, A., & Gourevitch, M. N. (2015) · Addiction · doi:10.1111/add.13165 · Cited by 76
Self-citationThe validity of self-reports in a follow-up study with drug addicts
Secades‐Villa, R., & Hermida, J. R. F. (2002) · Addictive Behaviors · doi:10.1016/s0306-4603(02)00219-8 · Cited by 74
Tiêt, Q. Q., Leyva, Y. E., Moos, R. H., Frayne, S. M., Osterberg, L. G., & Smith, B. N. (2015) · JAMA Internal Medicine · doi:10.1001/jamainternmed.2015.2438 · Cited by 74
Hides, L. M., Cotton, S., Berger, G. E., Gleeson, J., O’Donnell, C. P., Proffitt, T., McGorry, P. D., & Lubman, D. I. (2009) · Addictive Behaviors · doi:10.1016/j.addbeh.2009.03.001 · Cited by 73
Self-Reported Drug Use: Results of Selected Empirical Investigations of Validity
Hser, Y. (1997) · PsycEXTRA Dataset · doi:10.1037/e495622006-016 · Cited by 68
Drug Interactions between Common Illicit Drugs and Prescription Therapies
Lindsey, W. T., Stewart, D. W., & Childress, D. T. (2012) · The American Journal of Drug and Alcohol Abuse · doi:10.3109/00952990.2011.643997 · Cited by 67
Comparison of 3 Data Collection Methods for Gathering Sensitive and Less Sensitive Information
Kim, J., Dubowitz, H., Hudson-Martin, E., & Lane, W. G. (2008) · Ambulatory Pediatrics · doi:10.1016/j.ambp.2008.03.033 · Cited by 55
Heltsley, R. M., DePriest, A. Z., Black, D. L., Robert, T. A., Marshall, L., Meadors, V. M., Caplan, Y. H., & Cone, E. J. (2011) · Journal of Analytical Toxicology · doi:10.1093/anatox/35.8.529 · Cited by 54
Spear, S. E., Shedlin, M. G., Gilberti, B., Fiellin, M., & McNeely, J. (2015) · Substance Abuse · doi:10.1080/08897077.2015.1062460 · Cited by 51
Self-citationEvaluation of Cognitive Interviewing Techniques: Do the Results Generalize to the Field?
Willis, G., & Schechter, S. (1997) · Bulletin of Sociological Methodology/Bulletin de Méthodologie Sociologique · doi:10.1177/075910639705500105 · Cited by 50
Rogers, S., Miller, H. G., & Turner, C. F. (1998) · Substance Use & Misuse · doi:10.3109/10826089809069820 · Cited by 34
Lanier, D., & Ko, S. C. (2008) · Europe PMC (PubMed Central) · Cited by 34
Screening for Transmission Behaviors Among HIV-Infected Adults
Wight, R. G., Rotheram‐Borus, M. J., Klosinski, L. E., Ramos, B., Calabro, M., & Smith, R. (2000) · AIDS Education and Prevention · doi:10.1521/aeap.2000.12.5.431 · Cited by 30
Ghitza, U. E., Wu, L.-T. T., & Tai, B. (2013) · Substance Abuse and Rehabilitation · doi:10.2147/sar.s39982 · Cited by 29
Self-citationWu, L.-T. T., Blazer, D. G., WOODY, G. E., Burchett, B. M., Yang, C., Pan, J., & Ling, W. W. (2011) · Journal of Psychiatric Research · doi:10.1016/j.jpsychires.2011.12.002 · Cited by 20
Self-citationMcNeely, J., Halkitis, P. N., Horton, A., Khan, R., & Gourevitch, M. N. (2013) · Substance Abuse · doi:10.1080/08897077.2013.789463 · Cited by 16
Self-citationFactors underlying quality problems with alcohol screening in routine care
Williams, E. C., Achtmeyer, C. E., Rittmueller, S. E., Lapham, G. T., Chavez, L. J., Thomas, R. M., Berger, D. B., & Bradley, K. A. (2013) · Addiction Science & Clinical Practice · doi:10.1186/1940-0640-8-s1-a85 · Cited by 12
Wu, L.-T. T., Swartz, M. S., Pan, J., Burchett, B. M., Mannelli, P., Yang, C., & Blazer, D. G. (2012) · General Hospital Psychiatry · doi:10.1016/j.genhosppsych.2012.06.014 · Cited by 9
Self-citation
Research works printed but not linked: 8
- Centers for Disease Control and Prevention (CDC), 2012, MMWR Morb Mortal Wkly Rep, 61, 10
- 10.1007/s11606-002-0044-3 · DOI
- Centers for Disease Control and Prevention (CDC), 2007, MMWR Morb Mortal Wkly Rep, 56, 93
- Centers for Medicare & Medicaid Services (CMS), HHS, 2012, Final rule. Fed Regist, 77, 53967
- Wight RG, 2000, AIDS Educ Prev, 12, 431
- Babor TF, 1990, Behav Assess, 12, 5
- Hser YI, 1997, NIDA Res Monogr, 167, 320
- Merrill JO, 2002, J Gen Intern Med, 17, 327
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Volkow, N. D., & Blanco, C. (2023) · World psychiatry · doi:10.1002/wps.21073 · Cited by 503
Management of opioid use disorder in the USA: present status and future directions
Blanco, C., & Volkow, N. D. (2019) · The Lancet · doi:10.1016/s0140-6736(18)33078-2 · Cited by 407
O’Connor, E. A., Perdue, L. A., Senger, C. A., Rushkin, M., Patnode, C. D., Bean, S. I., & Jonas, D. E. (2018) · JAMA · doi:10.1001/jama.2018.12086 · Cited by 249
Mulvaney‐Day, N., Marshall, T., Piscopo, K. D., Korsen, N., Lynch, S. E., Karnell, L. H., Moran, G. E., Daniels, A. S., & Ghose, S. S. (2017) · Journal of General Internal Medicine · doi:10.1007/s11606-017-4181-0 · Cited by 201
Metadata
- Authors
- McNeely, J., Wu, L.-T., Subramaniam, G., Sharma, G., Cathers, L. A., Svikis, D., Sleiter, L., Russell, L., Nordeck, C., Sharma, A., O'Grady, K. E., Bouk, L. B., Cushing, C., King, J., Wahle, A., & Schwartz, R. P.
- Affiliations
- National Institutes of Health (US)
- From New York University School of Medicine, New York, New York; Duke University Medical Center, Durham, North Carolina; National Institutes of Health, Bethesda, Maryland; The EMMES Corporation, Rockville, Maryland; Virginia Commonwealth University, Richmond, Virginia; Friends Research Institute, Baltimore, Maryland; University of Maryland, College Park, College Park, Maryland; and Duke Translational Research Institute, Kannapolis, North Carolina.
- ORCID
- Venue
- Annals of Internal Medicine
- Publisher
- American College of Physicians
- Published
- 2016-11-15
- Volume
- 165
- Issue
- 10
- Pages
- 690-699
- ISSN
- 0003-4819 (ISSN-L)
- 1539-3704
- PMC
- PMC5291717
- OpenAlex
- W2517443113
- Cited by
- 320
- References
- 68
- Citations by year
- 2026: 47 · 2025: 51 · 2024: 53 · 2023: 41 · 2022: 34 · 2021: 32 · 2020: 26 · 2019: 19 · 2018: 9 · 2017: 8
- FWCI
- 11.23
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Annals of Internal Medicine (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- DukeSpace (Duke University) (submittedVersion, cc-by-nc-nd)
- Funders
- National Institute on Drug Abuse (UG1DA013034, U10DA013727, UG1DA040317, UG1DA013035)
- Topics
- Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Opioid Use Disorder Treatment
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Smoking Behavior and Cessation
- Keywords
- substance use screening, primary care, tobacco use, alcohol consumption, prescription drug misuse, cannabis use, sedative use, substance use disorders, screening tool validation, sensitivity and specificity, brief screening
- MeSH terms
- Adolescent, Adult, Aged, Aged, 80 and over, Marijuana Abuse, Female, Humans, Male, Mass Screening, Middle Aged, Primary Health Care, Surveys and Questionnaires, Sensitivity and Specificity, Tobacco Use Disorder, Substance-Related Disorders, Alcohol-Related Disorders, Prescription Drugs, Young Adult
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