Comparison of peak expiratory flow measurement by Mini-Wright peak flow meter and electronic spirometer in healthy elementary school children
AbstractObjective This study aims to compare peak expiratory flow mea-
surement by peak flow meter and electronic spirometer in healthy
elementary school children.
Methods This was a cross-sectional study performed in an el-
ementary school near Cipto Mangunkusumo hospital (SDN
Pegangsaan 01). The study group consisted of healthy children
aged 6-12 year old. Data regarding identity and history of illness
was taken in each subject. Routine physical examination was per-
formed and recorded. Each subject performed lung function tests
by means of electronic spirometer AS-7 as well as by Mini-Wright
peak flow meter. The subject should perform a minimum of three
maneuvers for each method where only the best result was re-
corded. Method comparison test to assess agreement between
two methods was employed in this study.
Results There were 10 males and 15 females enrolled in this study.
None of the subjects currently have any respiratory symptoms and
signs. This study found that the mean peak expiratory flow (PEF) by
spirometer was 226.8Â±73.13 L/min while by peak flow meter was
223.0Â±45.05. Mean difference between spirometer and peak flow
meter measurements is 6.2 with standard deviation of 60.82. These
values resulted in limits of agreement of -115.44 to +127.84 L/min.
Conclusions This study finds disagreement between electronic
spirometer and Mini-Wright peak flow meter in measuring peak
expiratory flow, therefore these two devices cannot be used
interchangeably. Mini-Wright peak flow meter still has a role in
home monitoring, but the physician should interpret the results
Pedersen OF. Peak expiratory flow: conclusions and
recommendatinos of a Working Party of the Euro-
pean Respiratory Society. Eur Respir J Suppl
2. Sly PD, Flack FS. Lung function. In: Silverman M,
ed. Childhood asthma and other wheezing disor-
ders. 2 nd ed. London: Arnold publishers; 2002. p.
3. No authors listed. Peak flow meter use in asthma man-
agement. Thoracic Society of Australia and New
Zealand. Med J Aust 1996;164:727-30.
4. Peak expiratory flow measured with the Mini Wright
Peak Flow Meter in children. Sanz J, Martorell A,
Saiz R, Alvarez V, Carrasco JI. Pediatr Pulmonol
5. No authors listed. Measuring pulmonary function in prac-
tice. Practitioner 2002; Jun:445.
6. McKenzie B, Barrett TC, Spencer DA, Garbe B. Accu-
racy of peak flow meters: donâ€™t interchange devices. BMJ
7. Clinical presentation and ongoing clinical and physi-
ologic assessment of asthma in children. In: Taussig LM,
Landau LI, Le Souef PN, Morgan WJ, Martinez FD, Sly
PD, eds. Pediatric respiratory medicine. St. Louis: Mosby;
1999. p. 943-5
8. Castile RG. Pulmonary function testing in children. In:
Chernick V, Boat TF, eds. Kendigâ€™s disorders of the respi-
ratory tract in children. 6 th ed. Philadelphia: WB Saunders
Co; 1998. p.196-214
9. Jones KP, Mullee MA. Lung function measurement in
general practice: a comparison of the Escort spirometer
with the Micromed turbine spirometer and the mini-
Wright peak flow meter. Respir Med 1995; 89:657-63
10. Hankinson, JL, Filios MS, Kinsley KB, Petsonk EL. Com-
paring Mini Wright and spirometer measurement of peak
expiratory flow. Chest 1995;108: 407-10.
11. Sly PD, Cahill P, Willet K, Burton P. Accuracy of mini peak
flow meters in indicating changes in lung function in chil-
dren with asthma. BMJ 1994;308:572-4.
12. Miller MR, Ouanjer PH. Peak flow meters: a problem of
scale. BMJ 1994;308:548-9.
13. Brusasco V. Usefulness of peak expiratory flow measure-
ments: is it just a matter of instrument accuracy? Thorax
14. Sly PD, Hayden MJ, Morgan WJ. Lung function in co-
operative subjects. In: Taussig LM, Landau LI, Le Souef
PN, Morgan WJ, Martinez FD, Sly PD, editors. Pediatric
respiratory medicine. St. Louis: Mosby; 1999. p. 205-211
15. Wirjodiardjo M, Said M, Boediman HI. Perbandingan hasil
pengukuran peak flow rate antara Mini Wright peak flow
meter dan spirometer elektronik pada anak. MKI
16. Sastroasmoro S, Ismael S. Dasar-dasar metodologi penelitian
klinis. 2 nd ed. Jakarta: CV Sagung Seto; 2002. p. 269, 384
17. British Thoracic Society. Guidelines for the measurement
of respiratory function. Resp Med 1994;88:163-94.
18. Altman, DG. Practical Statistics for Medical Research.
London: Chapman and Hall; 1991. p. 396-439.
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