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Relation of Peak Expiratory Flow Rate (PEFR) To Anthropometric Data of Male & Female school going Children of Serial Age-Group in a District Town Of West Bengal, India

Author(s): K. B. Ashok

Journal: International Journal of Collaborative Research on Internal Medicine & Public Health
ISSN 1840-4529

Volume: 3;
Issue: 3;
Start page: 225;
Date: 2011;
Original page

Keywords: Peak expiratory flow rate | normal PEFR value | PEFR in children | PEFR of Indians

Background:Pulmonary Function Tests (PFT) provides objective information about the extent of physiologicalimpairment and Peak Expiratory Flow Rate (PEFR) is one of the most important parameters of PFT.PEFR is the simple way to follow up the patients with airway obstructive diseases, using Peak FlowMeter. The observed PEFR is compared with the patient’s predicted value which is taken as a mean PEFRattainable by normal people. But, normal values are influenced by ethnicity, gender, age, body built etc.both in children and adults. Naturally PEFR varies in variation with the people, geography, gender, ageand sex. In India especially in eastern zone study to serve normal reference values of PEFR is rare to find.This data can serve as a reference for childhood asthma patients in eastern India.Aim & Objectives: To contribute the normal PEFR data in relation to anthropometric data in schoolgoing children aged 5 to 10years.Methods/Study Design: This was a descriptive, observational, school based, cross sectional, clinicalstudy which was carried out within two months on school going children of 5-10 years from randomlyselected schools at Midnapore Town, West Bengal. Study population was divided into five age groupsand 100 girls and 100 boys were taken in each group excluding those with pulmonary disorders orsmoking habits. So, total sample size was 1000.All eligible students were checked beforehand by physicians and eligible candidates were called forheight, weight and three consecutive PEFR value measurements (with mini peak flow meter) amongwhich the best values were taken for the record. Formulas suggested for prediction of PEFR in females{(age×4/8)+(height×10/6)-25)} and in males ({(age×1/7)+ (height×2/1)-208)}. Data were stored with thehelp of computerized technologies and analyzed by SPSS software.Results/Findings: The mean PEFR was 260.25±71.99 L/min. Obtained PEFR with all anthropometricsvariants indicate a good correlation. Correlation between PEFR and height was more significant andbetween PEFR and weight was lower, and according to importance of height and age which can beshowed in table format along with the p-values wherever assessed.Study Limitations: This was completely a single handed study done in a short period with populationfrom only urban area.Conclusion: The results of this study can determine normal PEFR and it can be useful for treatment andmonitoring of children with asthma who live in this region.

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