Reference spirometric values in a Sudanese cohort

Abstract

To determine normal values of respiratory function for Sudanese, a randomized stratified crosssectional study was performed on 2250 healthy Sudanese aged 7-86 years in 2002-05. Data were obtained through a questionnaire, pulmonary function testing and taking anthropometric measurements. Lung function and anthropometric measurements were correlated and regression equations were derived. Sudanese of Arab ethnic background had significantly higher forced vital capacity (FVC), forced expiratory volume in 1 (first) second (FEV1) and peak expiratory flow rate (PEFR) than those of African ethnicity. In adults a positive correlation was found between lung function and height and a negative correlation with age. Gender and ethnic variations in Sudanese lung function were confirmed. Comparisons were made with data from other international studies. These values can be used as reference values in respiratory clinics in Sudan. 1Faculty of Medicine, Imam Elmahdi University, Kosti, Sudan (Correspondence to A.A. Bashir: amirali69@yahoo.com

Prediction of peak expiratory flow rate in a Ugandan population

“…[3] For both studies, maximum PEFR was reached at around 30 years for males and 25 years for females before declining in older age groups. [3] However, our study differs from an earlier study on Sudanese, South Sudanese and Tanzanian males, [10] which failed to recognise the increase in PEFR in adolescence and early adulthood, and a study on Sudanese persons, [9] which also assumed a linear relationship for age 20 and above.…”

“…2 shows the predicted values of PEFR for males of height 164 cm and females of height 155 cm, compared with those obtained from three other studies in Africa. [3,9,10] …”

Valeurs spirométries de référence dans la population bantoue de Kinshasa de 20 à 70 ans

“…En effet, l'étude de Quanjer et al [40] qui s'est focalisée sur le nombre requis des sujets pour valider les valeurs respiratoires de référence rapporte une population d'au moins 150 hommes et 150 femmes, pour éviter les biais dus à une erreur d'échantillonnage. Rajaee M et al [31] au Ghana rapportent une taille de 172 sujets, Shamssain et al [41] en Lybie 208 sujets, Omar A et al [42] en Omani 561 sujets, Pefura Y et al [43] au Cameroun 1357 sujets, Mohamed O et al [44] en Arabie Saoudite 621 sujets, Ratomaharo J et al [29] au Madagascar 2491 sujets et Musafiri et al [32] au Ruanda 1824 sujets. La troisième force de l'étude est l'établissement des équations de prédiction des valeurs spirométriques en utilisant la méthode statistique de régression multi variée PLS.…”

“…Des données des pays développés d'Amérique latine [7, 8], d'Amérique du Nord [9-15]; d'Asie [16-19] et d'Europe ([1-6], [20-24]) sont largement disponibles. Celles disponibles sur le continent africain proviennent essentiellement des équipes d'Algérie [25], d'Afrique du Sud [26], de Tunisie [27], du Sénégal [28], du Soudan [29], de Madagascar [30], du Ghana [31], du Rwanda [32], et du Maroc [33]. Dedoyard et al en 1972 [34], Ghesquiere et al en 2009 [35], sont les premiers à rapporter dans une population estudiantine de Kinshasa, notamment des différences interraciales.…”

Normal Sudanese Spirometeric Values for Police Men

“…Background Spirometric values for police o cers in the police hospital, Khartoum, Sudan were observed to show higher values than predicted. 1 Reference values are important for diagnosis of asthma and chronic bronchitis…”