. Author manuscript; available in PMC: 2016 Jan 1.

Published in final edited form as: J Pediatr. 2014 Oct 25;166(1):109–114. doi: 10.1016/j.jpeds.2014.09.032

Table 1.

Demographic Characteristics of Children with OSAS and Control Group

Characteristic	OSAS (N = 60)	Control (N = 61)	x² or paired t	df	p
Sex: % male	57	56	.01	1	.918
Age: mean (SD), in years	12.61 (2.57)	12.94 (2.74)	.66	59	.513
Ethnicity: African American/Caucasian/Other (n)	42:16:2	44:17:0	2.07	2	.355
Household Income, Below $30,000/Above $30,000 annual	31:29	25:36	1.39	1	.355
PDSS Total, mean (SD)	17.66 (6.78)	11.98 (4.89)	−4.96	55	<.001
BMI: mean (SD) (age and gender adjusted)	32.94 (7.58)	24.34 (5.58)	−6.75	53	<.001
BMI z-score	2.15 (.86)	1.09 (.99)	5.48¹	54	<.001

Note: OSAS = Obstructive sleep apnea syndrome; PDSS = Pediatric Daytime Sleepiness Scale; BMI=Body Mass Index.

A Wilcoxon non parametric test was performed for BMI z-score