Biomaterial Database

Nonprescription bronchodilator medication use in asthma. 1997

W G Kuschner, and T C Hankinson, and H H Wong, and P D Blanc

Department of Medicine, and the Cardiovascular Research Institute, University of California, San Francisco, USA.

OBJECTIVE Many persons with asthma self-medicate with widely available and potentially hazardous nonprescription medicines. This study assessed the demographic and clinical covariates of self-treatment with over-the-counter asthma medications (OTCs). METHODS We conducted an analytical investigation using questionnaires and measures of lung function, comparing OTC and prescription medication users. We recruited adults with asthma by public advertisement. METHODS We studied 22 exclusive prescription asthma medication users, 15 exclusive OTC users, and 13 other subjects who combined prescription medication use with self-treatment with asthma OTCs. All but one OTC user self-medicated with a nonselective, sympathomimetic metered-dose inhaler. RESULTS Taking income, access to care, and self-assessed disease severity into account, male gender was strongly associated with exclusive OTC use alone (odds ratio [OR]=8.9, 95% confidence interval [CI]= 1.3 to 61) and mixed OTC-prescription medication use (OR=9.7, 95% CI=1.1 to 83). The covariates of income, access to care, and self-assessed disease severity provided significant additional explanatory power to the model of exclusive OTC use (model chi2 difference 11.3, 5 df, p<0.05). Pulmonary function was similar among OTC and prescription medication users. However, prescription medication users' self-assessed asthma severity (mild compared to more severe) was associated with postbronchodilator reversibility of FEV1 obstruction (6% vs 18% reversibility, p<0.05) while exclusive OTC users' self-assessed severity showed the reverse pattern (19% vs 8%, p=0.2). CONCLUSIONS Asthma education programs attempting to discourage unregulated bronchodilator use should give consideration to this profile of the "asthmatic-at-risk."

UI	MeSH Term	Description	Entries
D007182	Income	Revenues or receipts accruing from business enterprise, labor, or invested capital.	Income Distribution,Income Generation Programs,Savings,Distribution, Income,Distributions, Income,Income Distributions,Income Generation Program,Incomes,Program, Income Generation,Programs, Income Generation
D008168	Lung	Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.	Lungs
D008297	Male		Males
D009330	Nebulizers and Vaporizers	Devices that cause a liquid or solid to be converted into an aerosol (spray) or a vapor. It is used in drug administration by inhalation, humidification of ambient air, and in certain analytical instruments.	Atomizers,Inhalation Devices,Inhalators,Inhalers,Vaporizers,Nebulizers,Vaporizers and Nebulizers,Atomizer,Device, Inhalation,Devices, Inhalation,Inhalation Device,Inhalator,Inhaler,Nebulizer,Vaporizer
D010353	Patient Education as Topic	The teaching or training of patients concerning their own health needs.	Education of Patients,Education, Patient,Patient Education
D010366	Peak Expiratory Flow Rate	Measurement of the maximum rate of airflow attained during a FORCED VITAL CAPACITY determination. Common abbreviations are PEFR and PFR.	Expiratory Peak Flow Rate,Flow Rate, Peak Expiratory,PEFR
D011307	Drug Prescriptions	Directions written for the obtaining and use of DRUGS.	Drug Prescribing,Drug Prescription,Drug Prescribings,Prescribing, Drug,Prescribings, Drug
D011795	Surveys and Questionnaires	Collections of data obtained from voluntary subjects. The information usually takes the form of answers to questions, or suggestions.	Community Survey,Nonrespondent,Questionnaire,Questionnaires,Respondent,Survey,Survey Method,Survey Methods,Surveys,Baseline Survey,Community Surveys,Methodology, Survey,Nonrespondents,Questionnaire Design,Randomized Response Technique,Repeated Rounds of Survey,Respondents,Survey Methodology,Baseline Surveys,Design, Questionnaire,Designs, Questionnaire,Methods, Survey,Questionnaire Designs,Questionnaires and Surveys,Randomized Response Techniques,Response Technique, Randomized,Response Techniques, Randomized,Survey, Baseline,Survey, Community,Surveys, Baseline,Surveys, Community,Techniques, Randomized Response
D001993	Bronchodilator Agents	Agents that cause an increase in the expansion of a bronchus or bronchial tubes.	Bronchial-Dilating Agents,Bronchodilator,Bronchodilator Agent,Broncholytic Agent,Bronchodilator Effect,Bronchodilator Effects,Bronchodilators,Broncholytic Agents,Broncholytic Effect,Broncholytic Effects,Agent, Bronchodilator,Agent, Broncholytic,Agents, Bronchial-Dilating,Agents, Bronchodilator,Agents, Broncholytic,Bronchial Dilating Agents,Effect, Bronchodilator,Effect, Broncholytic,Effects, Bronchodilator,Effects, Broncholytic
D004366	Nonprescription Drugs	Medicines that can be sold legally without a DRUG PRESCRIPTION.	Drugs, Non-Prescription,Non-Prescription Drug,Nonprescription Drug,OTC Drug,OTC Drugs,Over-the-Counter Drug,Over-the-Counter Drugs,Patent Medicine,Patent Medicines,Drugs, Nonprescription,Medicines, Patent,Non-Prescription Drugs,Drug, Non-Prescription,Drug, Nonprescription,Drug, OTC,Drug, Over-the-Counter,Drugs, Non Prescription,Drugs, OTC,Drugs, Over-the-Counter,Medicine, Patent,Non Prescription Drug,Non Prescription Drugs,Over the Counter Drug,Over the Counter Drugs