TY - JOUR
T1 - Exhaled breath analysis
T2 - A promising triage test for tuberculosis in young children
AU - Bijker, Else M
AU - Smith, Jonathan P
AU - Mchembere, Walter
AU - McCarthy, Kimberly D
AU - Oord, Henny
AU - Gerritsen, Jan-Willem
AU - Click, Eleanor S
AU - Cain, Kevin
AU - Song, Rinn
PY - 2024/9/10
Y1 - 2024/9/10
N2 - The diagnosis of paediatric pulmonary tuberculosis is difficult, especially in young infants who cannot expectorate sputum spontaneously. Breath testing has shown promise in diagnosing respiratory tract infections, but data on paediatric tuberculosis are limited. We performed a prospective cross-sectional study in Kenya in children younger than five years with symptoms of tuberculosis. We analysed exhaled breath with a hand-held battery-powered nose device. For data analysis, machine learning was applied using samples classified as positive (microbiologically confirmed) or negative (unlikely tuberculosis) to assess diagnostic accuracy. Breath analysis was performed in 118 children. The area under the curve of the optimal model was 0.73. At a sensitivity of 86 % (CI 62-96 %), this resulted in a specificity of 42 % (95 % CI 30-55 %). Exhaled breath analysis shows promise as a triage test for TB in young children, although the WHO target product characteristics were not met.
AB - The diagnosis of paediatric pulmonary tuberculosis is difficult, especially in young infants who cannot expectorate sputum spontaneously. Breath testing has shown promise in diagnosing respiratory tract infections, but data on paediatric tuberculosis are limited. We performed a prospective cross-sectional study in Kenya in children younger than five years with symptoms of tuberculosis. We analysed exhaled breath with a hand-held battery-powered nose device. For data analysis, machine learning was applied using samples classified as positive (microbiologically confirmed) or negative (unlikely tuberculosis) to assess diagnostic accuracy. Breath analysis was performed in 118 children. The area under the curve of the optimal model was 0.73. At a sensitivity of 86 % (CI 62-96 %), this resulted in a specificity of 42 % (95 % CI 30-55 %). Exhaled breath analysis shows promise as a triage test for TB in young children, although the WHO target product characteristics were not met.
KW - Breath
KW - Children
KW - Diagnosis
KW - Tuberculosis
KW - e-nose
U2 - 10.1016/j.tube.2024.102566
DO - 10.1016/j.tube.2024.102566
M3 - Article
SN - 1873-281X
VL - 149
JO - Tuberculosis (Edinburgh, Scotland)
JF - Tuberculosis (Edinburgh, Scotland)
M1 - 102566
ER -