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 host...

OBJECTIVE Although several prediction equations to evaluate peak expiratory flow rate (PEFR) of Indian children are available in literature, clinicians and researchers need to make a logical choice of which equation to use as reference. The aim was to demonstrate a practical approach to making such a logical choice by using prediction equations on our study population. METHODS Eighteen linear...

OBJECTIVE To examine correlates of peak expiratory flow rate in people with type 1 diabetes and to evaluate the relationship of peak expiratory flow rate to mortality. RESEARCH DESIGN AND METHODS A cohort study that was originally designed to determine the prevalence, incidence, and severity of diabetic retinopathy also provided the opportunity to measure peak expiratory flow rate. This was f...

The present study evaluated whether primary and secondary coping would predict longitudinal asthma-related clinical outcomes, such as peak expiratory flow rate (PEFR) and self-reported school absenteeism, rescue inhaler use, and asthma-related physician contacts, in youth with asthma. The 62 youth (68% males) had an average age of 12.6 +/- 2.73 years and were primarily of European origin. Copin...

14 children with severe asthma were studied for 2 months in a double-blind cross-over trial to compare the efficacy of beclomethasone dipropionate delivered as an aerosol and as a powder from a rotahaler. Inhalation via the aerosol was satisfactory in 13 patients, each of whom used the rotahaler correctly. Younger children preferred to use the rotahaler. Comparison of daily symptoms, twice dail...

Family factors associated with the incidence of asthma and wheezing during childhood have been studied in a cohort of over 2000 children who, together with their families, were followed-up for five years. Episodes of wheezing not regarded by the parents as asthma had a different pattern of association with family factors to that found for asthma. The outcome of the two conditions in terms of ve...

A two part 8.5 month study was undertaken to see if peak expiratory flow rate (PEFR) could be used to guide casualty officers deciding whether to admit or discharge children with asthma. In part 1 PEFR, immediate treatment, and admission or discharge of all children attending because of asthma were recorded. In part 2 the same information was recorded after the introduction of admission and dis...

Cotes, J. E., Dabbs, J. M., Hall, A. M., Axford, A. T., and Laurence, K. M. (1973). Thorax, 28, 709-715. Lung volumes, ventilatory capacity, and transfer factor in healthy British boy and girl twins. Normal values are reported for the lung volumes, ventilatory capacity, and transfer factor of 212 healthy British twin children aged 8 to 16 years. The boys and the girls share a common relationshi...

Among 698 Birmingham factory workers, Asian men (n = 75) tended to have lower peak expiratory flow rates (PEFR) than black (n = 156) or white (n = 138) men when age, height and smoking habits were accounted for. This trend reached statistical significance in Asian females (n = 20), despite a small sample size. There were no significant differences in PEFR between blacks and whites of either sex.