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The comparability of two commonly used carbon monoxide analysis systems: a technical note
R C Klesges1, M E Andereck, E M Clark
1Center for Applied Psychological Research, Memphis State University, TN 38152.
Addictive Behaviors
|January 1, 1990
Summary
The Ecolyzer Series 210, a portable breath carbon monoxide (CO) analyzer, accurately measures smoking abstinence. It shows high comparability with the standard Ecolyzer Series 2000, making it a cost-effective option.
Area of Science:
- Biomedical Engineering
- Public Health
- Respiratory Medicine
Background:
- Expired breath carbon monoxide (CO) analysis is a standard method for verifying smoking abstinence.
- Accurate CO monitoring is crucial for smoking cessation programs and research.
Purpose of the Study:
- To evaluate the comparability of the new Ecolyzer Model 210 CO analyzer against the established Ecolyzer Series 2000.
- To assess the accuracy and cost-effectiveness of the portable Ecolyzer Model 210 for measuring expired CO.
Main Methods:
- Simultaneous CO readings were taken from 29 subjects (17 smokers, 12 nonsmokers) using both the Ecolyzer Series 2000 and Ecolyzer Model 210.
- Statistical analysis, including correlation, was performed to compare the measurements from the two devices.
Main Results:
- The Ecolyzer Series 210 and Series 2000 analyzers demonstrated highly comparable CO readings for both smokers and nonsmokers.
- A very high correlation (r = .92, p < .001) was observed between the two analyzers.
- A significant interaction between analyzer and sex was noted, with the Series 2000 showing higher values for males.
Conclusions:
- The Ecolyzer Model 210 is a highly accurate and cost-effective instrument for measuring expired carbon monoxide.
- The portable Series 210 provides comparable results to the Series 2000, supporting its use in verifying smoking abstinence.
- Further research may explore the sex-specific differences observed between the analyzers.