What question did this study set out to answer?

Evaluate the correlation between transcutaneous CO2 measurements and COPD stages.

Transcutaneous CO 2 Measurement of COPD Patients in the Outpatient Setting

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Retrospective analysis correlates PtcCO2 and COPD stage in 132 patients, suggesting implications for assessment.

Evaluate the correlation between transcutaneous CO2 measurements and COPD stages.
Retrospective chart analysis of 132 COPD patients with PtcCO2 measurements
PtcCO2 monitoring performed using the Sentec Digital Monitoring System
Statistical analysis using Chi square and student t-test
59% of patients had PtcCO2 of ≤45 mm Hg, while 41% had >45 mm Hg
Statistically significant differences in COPD stages between two PtcCO2 groups (P = .042)
No correlation found between PtcCO2 and GOLD classification (P = .45)

Heath et al. (2023) studied this question.

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