Childhood TB sequel: evaluating respiratory function after treatment for pulmonary tuberculosis in a prospective cohort of Gambian children – a study protocol

Table 3 Post-TB lung disease measurement parameters

Parameter	Abnormality signifying PTLD
Self- or parent-reported chronic or recurrent symptoms	Presence of any symptom
Lung function	z-score below the lower limit of normal (-1.64)
• Forced vital capacity (FVC) • Forced expiratory volume in 1 s (FEV1) • FEV1/FVC	z-score below the lower limit of normal (-1.64)
Chest X-ray	Presence of any TB-related abnormalities

ISSN: 1471-2466