| A study of predicted values of peak expiratory flow rates in primary school children. |
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Jie Sun Yoon, Eun Young Choi, Hey Sun Lee, Young Min Ahn |
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Department of Pediatrics, Kangnam General Hospital Public Corporation, Seoul, Korea |
| 국민학교 아동의 Peak Expiratory Flow Rate
예측치에 관한 연구 |
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윤지선, 최은영, 이혜선, 안영민 |
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지방공사 강남병원 소아과 |
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Received: 27 July 1990 • Accepted: 22 November 1990 |
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| Abstract |
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Peak expiratoy flow rate was especially useful parameter in the condition., management or
prediction of children asthma and other obstructive pulmonary disease.
The purpose of this study had been to obtain the predicted values for primary school children,
compared peak expiratory flow rates using Miniwright peak flow meter with Wright peak flow meter
and compared present study with previous study.
We measured peak expiratory flow rate of 517 boys and 496 girls in one primary school in Seoul
with the use of Miniwright peak flow meter and Wright peak flow meter and calculated the linear
regression equation and correlation coefficients according to sex, age, height, weight and body
surface.
The results were as follows;
1) Height was a more reliable index of pulmonary function test than other parameters.
WP=4.83 Ht-358.63 (r=0.80, p<0.001)
MP=4,11 Ht-245.29 (r=0.70, p<0.001)
2) After standardizing for height, peak expiratory flow rate was found to increase with age. There
was a significant difference between boys and girls.
WP:Male:-232.66+3.14 Ht+11.88 Age
Female:—232.664-3.14 Ht+9.88 Age
MP:Male:-132.07+2.60 Ht+10.94 Age
Female:—132.074-2.60 Ht+8.11 Age
3) Comparison between peak expiratory flow rates obtained using a Miniwright peak flow meter and
a Wright peak flow meter showed a highly significant correlation (r=0.86), but the Miniwright peak
flow meter gave consistently higher results. The difference was 20 Z/min (19.55±1.98 //min: 95%
confidence interval). |
| Key Words:
Peak expiratory flow rate, Miniwright peak flow meter, Wright peak flow meter |
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