by posterior rhinomanometry17 in the sitting position
correlated positively with increasing AHI in nonobese
middle-aged subjects.14,18 More recently, Tagaya et al.13
expanded on the significance of aNR in the obese adult
population with OSAS, using a more recent and standard
technique of AAR16 as in our study. These authors
have shown that increased aNR caused by obstructed
nasal passages could play an important role in the causation
of OSAS. In a pediatric study of children between
4 and 7 years of age, Rizzi et al.19 determined that aNR
correlated positively with the severity of OSAS. They
performed their measurements in an erect position in
contrast to the supine position used in this study.