Enrique VargasJohn BeardJere D. HaasL. Cudkowicz2026-03-222026-03-22198210.1159/000194502https://doi.org/10.1159/000194502https://andeanlibrary.org/handle/123456789/48672Citaciones: 12Lung diffusing capacities for carbon monoxide were measured in 125 highland Andean children between 4 and 6 years of age in La Paz, Bolivia (3,650 m), using a steady-state technique. Male children had a significantly lower DLC0 (13.2 ± 2.7) compared to females (14.2 ± 1.9; p < 0.05), despite similar body size Hemoglobin concentration was significantly greater than published values for low-altitude children and this also changes pulmonary diffusing capacities and supports the concept of early developmental adaptation in pulmonary function to environmental stressors as well as a sexual dimorphism in this type of adaptation.enDiffusing capacityPulmonary Diffusing CapacitySexual dimorphismPulmonary function testingMedicineAltitude (triangle)DLCOEffects of high altitude on humansAdaptation (eye)Hemoglobinarticle