A prediction equation for the estimation of vital capacity in Nepalese young females
Till date no effort has been made to evaluate vital capacity of children and young adults in Nepal. At present it is difficult to achieve accuracy in clinical diagnosis because of the lack of a unified standard of the normal reference value in young women's Vital capacity in Nepal. So, the present study was carried out to evaluate Vital capacity of healthy Nepalese young females, to formulate a prediction equation and to validate the applicability of the equation. One hundred and three young, non-smokers, female students of 17 to 22 years of age were recruited for this study. A stepwise, multiple, linear, regression equation was performed to derive a prediction equation. Validity of the prediction equation was studied using Bland and Altman method of approach for limits of agreement. The mean Vital capacity of Nepalese girls was 2648.05±378.26 ml. The difference between the mean (± standard deviation) vital capacity values of direct measurement and the predicted vital capacity (PVC=2647.12±319.92) was statistically insignificant. Analysis of data by Bland and Altman method of approach for limits of agreement reveals that the prediction equation may be used confidently in place of direct procedure. The regression equation based on height for the studied population is calculated as: Vital Capacity (ml)= 55.68×Height(cm)-6084.15.
Barcala, F.J.G., Suarez, C.C., Cuadrado, L.V., Leis, R., Cabanas, R., Tojo, R. Lung function reference values in children and adolescents aged 6 to 18 years in Galicia. Arch Bronconeumol. 2008; 4(4):295-302. https://doi.org/10.1016/S1579-2129(08)60049-X
Bland, J.M., Altman, D.G. Statistical method for assessing agreement between two methods of clinical measurements. Lancet. 1986; 1:307-310. https://doi.org/10.1016/j.ijnurstu.2009.10.001
Chhabra, S.K. Regional variations in Vital capacity in adult males in India: comparison of regression equations from four regions and impact on interpretation of spirometric data. Indian J Chest Dis Allied Sci. 2009; 51(1):7-13.
Dubois, D., Dubois, E.F. A formula to estimate approximate surface area if weight and height is known. Arch. Int. Med. 1916; 17:863-871. https://doi.org/10.1001/archinte.1916.00080130010002
Ghai, C.L. A textbook of practical physiology. New Delhi: Jaypee Publishers; 2007. Pp. 155-157. https://doi.org/10.5005/jp/books/10024
González-Camarena, R., Carrasco-Sosa, S., Gaitán, M.J. Reliability of reference models for Vital capacity in young Mexican male. Rev Invest Clin. 1993; 45(1):29-35.
Raju, P.S., Prasad, K.V., Ramana, Y.V., Balakrishna, N., Murthy, K.J. Influence of socioeconomic status on lung function and prediction equations in Indian children. Pediatr Pulmonol. 2005; 39(6):528-36. https://doi.org/10.1002/ppul.20206
Raju, P.S., Prasad, K.V., Ramana, Y.V., Murthy, K.J. Pulmonary function tests in Indian girls-prediction equations. Indian J Pediatr. 2004; 71(10):893-7. https://doi.org/10.1007/BF02830828
Singh, R., Singh, H.J., Sirisinghe, R.G. Spirometric studies in Malaysians between 13 and 69 years of age. Med J Malaysia. 1993; 48(2):175-84.
Virani, N., Shah, B., Celly, A. Pulmonary function studies in healthy non-smoking adults in Sri Aurobindo Ashram, Pondicherry. Indian J Med Res. 2001; 114:177-84.
Zverev, Y., Gondwe, M. Ventilatory capacity indices in Malawian children. East Afr Med J. 2001; 78(1):14-8. https://doi.org/10.4314/eamj.v78i1.9105
Copyright (c) 2011 Journal of Human Sport and Exercise
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.