Body Mass Index and its correlation with pulmonary function in patients with cystic fibrosis from Cartagena (Colombia)

background. sinus-pulmonary manifestations are a major concern in cf patients. pulmonary function shows a strong relationship with nutritional status. in colombia, malnutrition is a public health issue; however there are no reports that fully analyze nutritional status and lung function in cf children. materials and methods. a cross-sectional study was developed conducted with 32 patients registered in the cf attention program. measurements were performed following the niosh spirometry training guide. body mass index (z-score) was calculated according to onis.et.al. correlation was determined by a regression model. results. 14 children were able to perform the test with criteria for the study, mean for age 12.4 ± 3.4 years. % forced expiratory volume1 and % forced vital capacity means were 66.7 ± 28.5 and 69.5 ± 2.0, respectively. body mass index (z-score) mean was -1.17. bmi-regression for % forced expiratory volume1, r2=0.31(p<0.01); % forced vital capacity, r2=0.22(p<.01). conclusions. results demonstrated a correlation between body mass index and lung function. this correlation persists, even in populations with notorious nutritional deficit such as this group. special nutritional therapies should be implemented for this group and similar populations.