Table 1

Demographic characteristics in children with and without OSA
Variables NOSA OSA P-value
(n=480) (n=128)
Age (years) 7.14±1.00 7.04±0.99 0.14
Gender (% male) 58.9 55.5
Ethnicity
White Caucasian % 72 63.3
African American % 28 36.7
BMI z-score 0.81±1.24 1.23±1.38 0.002
SBP (mmHg) 105.46±10.98 105.86±8.05 0.44
DBP (mmHg) 61.80±7.65 63.96±5.53 0.11
Sleep latency (min) 23.76±23.99 19.45±20.71 0.02
REM latency (min) 151.88±62.77 155.24±80.95 0.33
TST (min) 468.77±44.90 469.28±55.29 0.46
Sleep efficiency (%) 88.79±7.89 89.35±9.80 0.28
Stage 1 (% TST) 6.08±4.61 6.05±5.85 0.48
Stage 2 (% TST) 46.32±12.73 43.62±7.93 0.002
Slow wave sleep (% TST) 27.67±9.43 28.91±8.08 0.07
REM sleep (%TST) 20.68±8.35 20.13±10.87 0.30
AHI (h-1 TST) 0.63±0.49 8.28±9.27 <0.0001
Apnea index (h-1 TST) 0.44±0.96 2.53±4.76 <0.0001
Arousal index (h-1 TST) 10.06±7.25 13.37±7.82 <0.0001
Mean SaO2 (%) 97.21±4.82 96.24±2.23 0.0006
Lowest SaO2 (%) 92.66±3.85 86.02±9.10 <0.0001

Chatsuriyawong et al.

Chatsuriyawong et al. BMC Medical Genomics 2013 6:29   doi:10.1186/1755-8794-6-29

Open Data