Radiographic examination
The size of the adenoid was assessed using a nasopharyngeal lateral
radiograph. The degree of airway obstruction was evaluated according to
the A/N ratio. A :the vertical distance between the most convex point of
the inferior adenoid and the extracranial tangent of the occipital
slope. N:the vertical distance between the intersection of the reverse
extension of the vertical line with the posterior end of the hard palate
or the superior edge of the anterior middle of the soft palate and the
extracranial tangent of the occipital slope is. An A/N ratio ≤ 0.60
indicates normal, an A/N ratio from 0.61~0.70 indicates
mild hypertrophy, an A/N ratio from 0.71~0.80 indicates
moderate hypertrophy, and A/N ratio ≥ 0.80 indicates severe
hypertrophy[13,14].
This study has used reporting in implementation research of nurturing
care interventions designed to promote early childhood development(ECD)
as the reporting guideline