Identification of smoking using Medicare data--a validation study of claims-based algorithms

Pharmacoepidemiology and Drug Safety
Rishi J DesaiSeoyoung C Kim

Abstract

This study examined the accuracy of claims-based algorithms to identify smoking against self-reported smoking data. Medicare patients enrolled in the Brigham and Women's Hospital Rheumatoid Arthritis Sequential Study were identified. For each patient, self-reported smoking status was extracted from Women's Hospital Rheumatoid Arthritis Sequential Study and the date of this measurement was defined as the index-date. Two algorithms identified smoking in Medicare claims: (i) only using diagnoses and procedure codes and (ii) using anti-smoking prescriptions in addition to diagnoses and procedure codes. Both algorithms were implemented: first, only using 365-days pre-index claims and then using all available pre-index claims. Considering self-reported smoking status as the gold standard, we calculated specificity, sensitivity, positive predictive value, negative predictive value (NPV), and area under the curve (AUC). A total of 128 patients were included in this study, of which 48% reported smoking. The algorithm only using diagnosis and procedure codes had the lowest sensitivity (9.8%, 95%CI 2.4%-17.3%), NPV (54.9%, 95%CI 46.1%-63.9%), and AUC (0.55, 95%CI 0.51-0.59) when applied in the period of 365 days pre-index. Incorporating p...Continue Reading

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Citations

Sep 19, 2018·Annals of Neurology·Susan Searles NielsenBrad A Racette
Oct 28, 2019·Pharmacoepidemiology and Drug Safety·Sruthi AdimadhyamGlen T Schumock
Dec 28, 2019·Journal of the American Heart Association·Robert S RosensonLisandro D Colantonio
Jun 3, 2020·Human Reproduction·Elizabeth Wall-WielerSuzan L Carmichael
May 22, 2020·Canadian Journal of Psychiatry. Revue Canadienne De Psychiatrie·Elizabeth Wall-WielerSuzan L Carmichael
Oct 19, 2019·Research and Practice in Thrombosis and Haemostasis·Babak B NaviPaul Muntner
Oct 27, 2020·Journal of Thrombosis and Haemostasis : JTH·Jordan K SchaeferSuman L Sood
May 10, 2020·Cancer Epidemiology, Biomarkers & Prevention : a Publication of the American Association for Cancer Research, Cosponsored by the American Society of Preventive Oncology·Joanne M MichaudIra B Wilson
Dec 21, 2020·Journal of Clinical Lipidology·Kaylee B CrockettLisandro D Colantonio
Feb 6, 2021·Journal of Thrombosis and Thrombolysis·Jordan K SchaeferSuman L Sood
Nov 8, 2020·Journal of Neurointerventional Surgery·D Andrew WilkinsonAditya S Pandey
Oct 7, 2021·Pharmacoepidemiology and Drug Safety·Sitwat AliRachel E Neale
Aug 20, 2018·Journal of Pain and Symptom Management·Cara L McDermottSean D Sullivan

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