Inflammatory Markers in Middle-Aged Obese Subjects: Does Obstructive Sleep Apnea Syndrome Play a Role?

Table 1

Comparison of anthropometric and sleep characteristics between the two groups.

	Total	Controls	OSAS	$P$-value
	($n=61$)	($n=23$)	($n=38$)
Gender (M/F)	$50/11$	$17/6$	$33/5$	$.353$
Age (years)	$44.9\pm 9.2$	$43.7\pm 6.7$	$45.5\pm 10.5$	$.420$
BMI (kg/m^2)	$35.7\pm 6.3$	$34.5\pm 3.7$	$36.4\pm 7.4$	$.577$
Neck circumference (cm)	$42.8\pm 3.1$	$40.5\pm 2$	$44.1\pm 3$	$<$ .001
Waist circumference (cm)	$117\pm 9.7$	$114.7\pm 7.9$	$118.4\pm 10.5$	$.147$
Hip circumference (cm)	$118.7\pm 13.7$	$114.7\pm 8.2$	$121.2\pm 15.7$	$.140$
WHR	$0.99\pm 0.05$	$1\pm 0.03$	$0.98\pm 0.06$	$.169$
Systolic BP (mmHg)	$131.1\pm 7$	$131.2\pm 6.4$	$131.1\pm 7.4$	$.864$
Diastolic BP (mmHg)	$80.4\pm 7.9$	$80.2\pm 7.9$	$80.6\pm 7.9$	$.873$
FEV1 (% pred)	$91.1\pm 9.7$	$91.2\pm 8.9$	$91\pm 10.3$	$.939$
FVC (% pred)	$89.6\pm 10.2$	$89\pm 8.8$	$90\pm 11$	$.714$
PaO2 (mmHg)	$82.4\pm 6.8$	$82.7\pm 5.8$	$82.2\pm 7.5$	$.786$
PaCO2 (mmHg)	$38.4\pm 2.5$	$38.6\pm 1.3$	$38.2\pm 3$	$.428$
pH	$7.40\pm 0.02$	$7.40\pm 0.01$	$7.41\pm 0.02$	$.943$
ESS	$9.9\pm 6.2$	$6.6\pm 4.6$	$11.9\pm 6.2$	$<$ .001
AHI (/hour)	$40\pm 34.5$	$5.3\pm 3.2$	$61\pm 27$	$<$ .001
ODI (/hour)	$41.9\pm 34.2$	$7.3\pm 4$	$62.9\pm 26.4$	$<$ .001
avSpO2 (%)	$90.8\pm 4.6$	$93.4\pm 1.4$	$89.3\pm 5.2$	$<$ .001
minSpO2 (%)	$75.7\pm 11.1$	$84.4\pm 3.1$	$70.4\pm 10.8$	$<$ .001
$t<90$ (% TST)	$23.6\pm 27.8$	$3.3\pm 5$	$36.3\pm 28.7$	$<$ .001