Abdominal Adiposity Correlates with Adenotonsillectomy Outcome in Obese Adolescents with Severe Obstructive Sleep Apnea

Table 1

Demographic and polysomnographic profile of subjects. For quantitative variables, data are presented as mean ± standard error (SE). AT: adenotonsillectomy; OAHI: obstructive apnea-hypopnea index. For categorical variables, data are presented as count number (column percentage). 𝑃 values are obtained by either two-sample 𝑡-test or chi-square test, depending on the type of variables.

Factors/variables	Response to AT (𝑛=7)	No response to AT (𝑛=14)	𝑃 value
(A) Demographic variables
Gender
Female	2 (28.6%)	3 (21.5%)	0.725
Male	5 (71.4%)	11 (78.5%)	0.725
Age (years): mean (SE)	12.1 (0.4)	12.7 (0.6)	0.478
Ethnicity
White	4 (57.1%)	8 (57.1%)	1.0
Others	3 (42.9%)	6 (42.9%)	1.0
(B) Sleep study parameters
OSA severity
Pre-AT OAHI: mean (SE)	34.4 (11.6)	31.1 (2)	0.789
Post-AT OAHI: mean (SE)	𝟏.𝟑𝟐(𝟎.𝟑)	𝟏𝟗.𝟕(𝟏.𝟖)	<𝟎.𝟎𝟏^∗∗
% OAHI improvement after AT	𝟗𝟒.𝟔(𝟏.𝟑)	𝟑𝟓.𝟐(𝟒.𝟎)	<𝟎.𝟎𝟏^∗∗
Sleep efficiency (%): mean (SE)	80.3 (4.6)	83.3 (2.5)	0.580
Arousal index (events per hr): mean(SE)	15.7 (3.5)	13.6 (2.4)	0.627
SaO2 nadir (%): mean (SE)	84 (3.0)	83.9 (1.4)	0.983

(^{∗∗0𝑥0𝑒𝑓88}P ≤ 0.01).