Reference Value of Nasal Peak Inspiratory Flow Rate in Indian Children: A Cross-sectional Study
Introduction: Peak Nasal Inspiratory Flow (PNIF) measurement is a basic, convenient, easy to use and low cost method of determining the nasal airway patency. However, normative data for paediatric population is scarce and not available for Indian children aged 6 to 12 years. Aim: To establish r...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
JCDR Research and Publications Private Limited
2021-07-01
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| Series: | Journal of Clinical and Diagnostic Research |
| Subjects: | |
| Online Access: | https://jcdr.net/articles/PDF/15090/48885_CE[Ra1]_F(SHU)%20GC(AnK)_PF1(SY_SHU)_PFA(SY_KM)_PN(KM).pdf |
| Summary: | Introduction: Peak Nasal Inspiratory Flow (PNIF) measurement
is a basic, convenient, easy to use and low cost method of
determining the nasal airway patency. However, normative data
for paediatric population is scarce and not available for Indian
children aged 6 to 12 years.
Aim: To establish reference value of PNIF in Indian children
aged 6 to 12 years of age.
Materials and Methods: A descriptive cross-sectional study
was conducted between July 2012 and June 2013 in the
Himalayan range of east Sikkim district and Sub-Himalayan
Terai region of Darjeeling district of West Bengal. Total 1001
children aged 6 to 12 years were selected from 16 schools by
simple random sampling. Of these 1001 children, 784 children
were enrolled in the study after taking into account inclusion
and exclusion criteria. Repeated PNIF measurements were
taken from these 784 children. Mean PNIF value was calculated.
The effect of age and height on PNIF was studied. The mean
and standard deviation of Peak Inhalation Flow Rate (PIFR)
are calculated and compared across groups using a one-way
ANOVA test. Regression analysis was done to establish an
equation of predicting PNIF level based on height for normal
children. The analysis was carried out using Statistical Package
for Social Sciences (SPSS) version 16 statistical software. An
alpha level of 5% was chosen, which means that any p value
less than 0.05 was considered significant.
Results: Mean value of PNIF age group; 6-7 years-53.36 L/min,
>7-8 years-56.79 L/min, >8-9 years-63.91 L/min, >9-10 years69.45 L/min, >10-11years- 80.71 L/min, >11-12 years-85.69 L/
min. PNIF increases with age and height. A simple formula has
also been established to calculate mean PNIF at a given height.
PNIF or PIFR (L/min)= -52.716+0.945×height in cm.
Conclusion: PNIF measurements are possible in children aged
six years and older. Age and height also affect PNIF. |
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| ISSN: | 2249-782X 0973-709X |