Ali Pourhassan Amiry,, Zeinab Mortazavi, Mahmoud Monadi, Ali Bijani,
Volume 1, Issue 3 (1-2010)
Abstract
Background: Peak Expiratory Flow Rate (PEFR) is recommended as a tool for control of asthma. The purpose of this study was to determine the normal value of PEFR in the healthy high school children in Babol, Iran.
Methods: This study was conducted on 470 healthy high school children (285 girls, 185 boys with the age between 14-18 years). For the determination of PEFR we used Mini Wright Peak Flow Meter. At a three time measurement, the highest value of PEFR is recorded. Formula for prediction of PEFR was estimated by linear regression analysis after the correlation of PEFR with the age, height and weight.
Results: The mean PEFR in the boys was 546.57±74.92 and in the girls was 424.48±52.29L/m. The amount of PEFR was increased regarding age, height and weight. The formula for prediction of PEFR was estimated:
For boys: weight ×1.59+height×2.24+age×1.47-135,
For girls: weight ×0.86+height×1.46+143.17
Conclusion: The results show that the normal range of PEF is different from that reported to the other countries.
Mahmood Moosazadeh, Iradj Maleki, Reza Alizadeh-Navaei, Motahareh Kheradmand, Akbar Hedayatizadeh-Omran, Amir Shamshirian, Agil Barzegar,
Volume 10, Issue 3 (6-2019)
Abstract
Background: Neutrophil-lymphocyte ratio (NLR), lymphocyte-monocyte ratio (LMR) and platelet-lymphocyte ratio (PLR) have a prognostic value in several types of diseases such as cancers and they vary in different races. So, we aimed to evaluate the normal range of these markers among healthy people to determine the normal value in Iranian population.
Methods: In the present study, cross-sectional data of population-based cohort study named “Tabari cohort study” was utilized. In the first phase of Tabari cohort, 10255 participants aged 35-70 years from urban and rural areas of Sari, Mazandaran, Iran entered into the study. The study included a questionnaire survey and blood collection. Blood samples were collected after 12 hours fasting from all participants during the study. Hematological indices were measured for all samples using Celltac Alpha MEK-6510 K (Tokyo, Japan).
Results: After sample exclusion, 2212 healthy subjects of Tabari's normal cohort population were investigated. The mean age of the samples was 47.9±9.29 years. The mean of NLR, LMR, PLR were 1.70±0.70, 11.15±3.14 and 117.05±47.73, respectively.
Conclusion: Our investigation provides preliminary reference values for NLR, LMR, and PMR among Iranian population that can be used for disease progress in various clinical procedures.
