. 2019 Jun 21;21(7):984–990. doi: 10.1111/jch.13605

Table 1.

Characteristics and cardiovascular disease risk factors stratified by obstructive sleep apnea (OSA)

Mean (SD), median (IQR), or N (%); n as indicated by footnotes	Overall (n = 61)	OSA (n = 28)	No OSA (n = 33)	P‐value
Demographics
Age (y) Ma, Age^a	13.1 (3.8), 61	13.0 (3.8), 28	13.2 (3.9), 33	0.830
Male^b	37 (60.7), 61	16 (57.1), 28	21 (63.6), 33	0.793
African American^b	50 (82.0), 61	23 (82.1), 28	27 (81.8), 33	1.000
Measures of adiposity
Weight (kg)^a	100.0 (36.4), 61	105.2 (43.1), 28	95.7 (29.5), 33	0.327
Weight percentile^c	100.0 (99.0, 100.0), 60	100.0 (99.8, 100.0), 28	100.0 (99.0, 100.0), 32	0.172
Weight z‐score^a	2.8 (0.6), 58	2.9 (0.6), 27	2.7 (0.6), 31	0.099
BMI (kg/m²)^c	36.3 (32.1, 42.5), 61	37.5 (32.6, 44.4), 28	35.8 (30.5, 40.6), 33	0.297
BMI z‐score^c	2.6 (2.4, 2.8), 58	2.7 (2.5, 2.9), 27	2.5 (2.3, 2.7), 31	0.018
Waist circumference (cm)^a	110.8 (21.0), 55	113.9 (23.6), 27	107.8 (18.2), 28	0.290
Waist circumference z‐score^a	2.6 (0.6), 53	2.7 (0.5), 26	2.5 (0.6), 27	0.150
Hip circumference (cm)^a	116.6 (18.6), 55	117.4 (19.9), 27	115.8 (17.6), 28	0.754
Hip circumference z‐score^a	3.6 (0.9), 53	3.6 (0.8), 26	3.5 (1.0), 27	0.622
Waist:Hip ratio^a	0.9 (0.1), 55	1.0 (0.1), 27	0.9 (0.1), 28	0.061
Waist:Hip z‐score^a	1.7 (1.3), 53	2.1 (1.3), 26	1.4 (1.3), 27	0.064
CVD risk factors
Systolic BP (mm Hg)^a	122.3 (15.9), 61	124.3 (19.0), 28	120.6 (12.8), 33	0.377
Systolic BP index^a	0.96 (0.09), 61	0.98 (0.11), 28	0.94 (0.08), 33	0.178
Diastolic BP (mm Hg)^a	65.6 (11.3), 61	67.0 (13.4), 28	64.3 (9.2), 33	0.372
Diastolic BP index^a	0.79 (0.12), 61	0.81 (0.14), 28	0.78 (0.11), 33	0.273
Hypertension^b	33 (54.1), 61	17 (60.7), 28	16 (48.5), 33	0.441
LVMI (g/m^2.7)^c	43.6 (38.1, 57.5), 60	48.5 (40.7, 60.4), 28	42.0 (36.6, 51.5), 32	0.047
LVH (LVMI ≥38.6 g/m^2.7)^b	43 (71.7), 60	24 (85.7), 28	19 (59.4), 32	0.043
LVH (LVMI ≥95th percentile)^b	40 (66.7), 60	22 (78.6), 28	18 (56.3), 32	0.100
LVH (LVMI ≥51 g/m^2.7)^b	17 (28.3), 60	11 (39.3), 28	6 (18.8), 32	0.093

Abbreviations: BMI, body mass index; BP, blood pressure; LVH, left ventricular hypertrophy; LVMI, left ventricular mass index.

Reporting mean (SD).

Reporting N (%).

Reporting median (IQR).