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A Comparison of Methods to Count Breathing Frequency
Atsushi Takayama1,2, Taro Takeshima3, Yutaka Nakashima4
1Department of Family Medicine, Iwakuni Municipal Miwa Hospital, Iwakuni, Yamaguchi, Japan. m05054at@live.jp.
Respiratory Care
|April 18, 2019
Summary
The breathing time measurement method offers a more accurate and reliable way to assess patient respiratory rates compared to the 15-second quadruple method. This quick screening tool reduces medical staff workload while maintaining precision in breathing frequency counts.
Area of Science:
- Medical Diagnostics
- Respiratory Physiology
- Clinical Measurement
Background:
- Assessing breathing frequency is crucial in patient care.
- A full-minute breath count can be labor-intensive for healthcare professionals.
- Efficient and accurate methods for respiratory rate assessment are needed.
Purpose of the Study:
- To evaluate the accuracy of two rapid screening methods for determining breathing frequency.
- To compare the agreement of the 15-second quadruple method and breathing time measurement with a full-minute breath count.
- To identify a more efficient method for respiratory rate assessment.
Main Methods:
- A cross-sectional study involving 57 nurse examiners and 1 nurse acting as a patient.
- Comparison of three methods: 1-minute breath count, 15-second quadruple method, and breathing time measurement.
- Statistical analysis including correlation and Bland-Altman analyses, and paired t-tests.
Main Results:
- The breathing time measurement method showed a higher correlation (0.90) with the 1-minute breath count than the 15-second quadruple method (0.83).
- Bland-Altman analysis revealed better agreement for breathing time measurement (bias: 0.5 ± 2.6 SD, limits of agreement: ±5.0) compared to the 15-second quadruple method (bias: -2.1 ± 2.9 SD, limits of agreement: ±5.6).
- Statistically significant differences were found between both rapid methods and the 1-minute breath count (P < .001).
Conclusions:
- The breathing time measurement method demonstrates superior agreement with the gold standard 1-minute breath count.
- This method is a more reliable and accurate quick screening tool for respiratory rate assessment.
- The findings support the adoption of breathing time measurement to reduce workload and improve efficiency in clinical settings.
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