Diurnal variation of peak expiratory flow rate in adolescents
نویسندگان
چکیده
Lung functions exhibit a circadian rhythm. Peak Expiratory Flow Rate (PEFR) is an easily measured and reproducible parameter for measuring lung functions. Limited information available on the variations in south Indian adolescents. Hence, this study was undertakento evaluate diurnal variation of PEFR This longitudinal conducted among 30 adolescent girls age group 18-19 years recruited from hostel Chirala, Andhra Pradesh. Smokers, pregnant women subjects with history tuberculosis were excluded study. using Mini — Wright s, peak flow meter, four times day (5.30 – 6.00 am, 12.00-1.00 pm, 5.00-6.00 9-10.00pm) function calculated. The values at different time points analyzed analysis variance. Statistical significance taken 5% level significance. Amplitude % Mean Standard deviation used to estimate PEFR. mean recorded 5.30 12.00 noon, 5.00 pm 9.00 340, 347, 349 348 respectively. amplitude standard obtained 8.42 ± 3.65and 3.87±1 C results indicate that adolescents exhibits definite rhythm, it being lowest early morning, progressively rises till late afternoon following which there slight fall night.
منابع مشابه
Diurnal variation in peak expiratory flow rate among grain elevator workers.
The diurnal variation (DV) in peak expiratory flow rate (PEFR) has been studied among 132 grain elevator workers who accomplished three daily measurements of PEFR during three weeks. DV was calculated as the difference between the highest and the lowest PEFR as a percentage of the mean PEFR on each day. For the whole group the median was 5.9%. DV was higher among smokers and among workers with ...
متن کاملPeak Expiratory Flow Rate in Healthy Children from Tehran
Background: Measuring peak expiratory flow rate has been suggested as an important tool in asthma management by all international guidelines. Objective: Studies on various populations have shown considerable variations in normal values of peak expiratory flow rate. Since reference standards for Iranian children are not available, the present study was performed to establish these standards. Me...
متن کاملPeak expiratory flow rates in Libyan adolescents.
Peak expiratory flow rates of 578 Libyan boys and 527 Libyan girls aged 12 to 21 years were determined. The prediction formulae that best describe the data are as follows: Boys: PEFR = 160 X Stature 1.87 Girls: PEFR = 130 X Stature2.44 Statistically significant correlations were found between peak expiratory flow rate (PEFR) and standing height, sitting height, body mass index, body surface are...
متن کاملPeak expiratory flow rate in elderly Malaysians.
An epidemiological survey was conducted among 1,414 healthy ambulatory elderly persons aged 55 years and above in the Kuala Langat district, Selangor. The relationship between peak expiratory flow rate (PEFR), demographic variables, socioeconomic status, smoking, alcohol use and respiratory symptoms were examined. The peak expiratory flow declined with age and were lower in women of all ages. S...
متن کاملDiurnal variation in peak expiratory flow rate among workers exposed to toluene diisocyanate in the polyurethane foam manufacturing industry.
The diurnal variation in peak expiratory flow rate (PEFR) was studied in 26 mixers from eight factories making polyurethane foam, who were exposed to toluene diisocyanate (TDI), and 26 unexposed controls matched for age, race, and smoking. They were all men. The mean diurnal variation in PEFR of the mixers was 6.2%, which was significantly higher than the 4.3% for controls. Six mixers had a diu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Annals of geriatic education and medical sciences
سال: 2023
ISSN: ['2348-7240', '2348-7348']
DOI: https://doi.org/10.18231/j.agems.2022.017