What question did this study set out to answer?

To determine whether temperature measurement variability among different spirometer thermometers introduces systematic bias into respiratory survey results.

February 1, 1998Journal of Occupational and Environmental Medicine

Temperature Standardization of Multiple Spirometers

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Authors

WLWilliam S. LinnUniversity of Southern California JSJoseph C. SolomonUniversity of Southern California HGHenry GongIllinois Institute of Technology

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Implication

Comparative evaluation demonstrates thermometer discrepancies up to 1.3 °C across multiple spirometers, indicating sensor variation can bias vital capacity measurements in health surveys.

Key Points

To determine whether temperature measurement variability among different spirometer thermometers introduces systematic bias into respiratory survey results.
Monitored internal cylinder and external casing temperatures across six rolling-seal spirometers using digital thermometers in both field and controlled laboratory environments.
Tracked temperature sensor offsets during field testing of 3,908 students across more than 60 schools over a 5-month period.
Internal and external thermometer readings showed strong agreement with each other but consistently lagged behind changes in ambient room temperature.
Individual thermometers differed from each other by up to 1.3 °C, which produced discrepancies as large as 0.8% in vital capacity measurements.

Cite This Study

Linn et al. (1998) studied this question.

synapsesocial.com/papers/6a98c511bd3522584418e525 https://doi.org/10.1097/00043764-199802000-00011

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Implication

Comparative evaluation demonstrates thermometer discrepancies up to 1.3 °C across multiple spirometers, indicating sensor variation can bias vital capacity measurements in health surveys.

Temperature Standardization of Multiple Spirometers

Discussion

Member takes

Implication

Key Points

Cite This Study

Temperature Standardization of Multiple Spirometers

Discussion

Member takes

Implication

Key Points

Cite This Study

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