Table 3. Anthropometric Characteristics, Polysomnography, and Basal Laboratory Results in Patients with Controlled or Resistant HTN.

	Controlled HTN (n=410)	Resistant HTN (n=65)	p value
Age (yrs)	54.33±12.85	53.15±14.83	0.500
Sex, male:female (percentage of male)	303:107 (73.9%)	47:18 (72.3%)	0.786
Height (cm)	166.94±8.47	167.84±7.33	0.417
Weight (kg)	73.30±11.94	79.96±16.05	<0.001
BMI (kg/m2)	26.10±3.27	28.05±4.18	<0.001
Neck circumference (cm)	38.11±3.20	39.98±3.75	<0.001
Waist circumference (cm)	93.05±8.93	99.12±9.28	<0.001
Hip circumference (cm)	100.01±7.16	103.67±8.99	0.003
ESS	7.39±4.27	7.24±4.01	0.789
Total NREM sleep duration (min)	256.99±128.54	296.52±75.92	0.001
Total REM sleep duration (min)	71.23±35.68	66.01±35.40	0.273
Percentage of NREM sleep (%)	57.89±26.92	68.69±8.50	<0.001
Percentage of REM sleep (%)	16.02±7.30	15.25±7.63	0.432
Total AHI	17.27±16.81	22.88±19.46	0.015
The longest apnea duration (sec)	29.99±20.33	27.79±16.39	0.334
The longest hypopnea duration (sec)	47.19±21.05	49.53±18.86	0.399
Average O2 saturation (%)	95.04±1.62	94.37±1.93	0.003
Lowest O2 saturation (%)	85.20±5.76	83.52±6.56	0.033
O2 desaturation index	16.05±15.89	22.57±19.04	0.003
Average HR	62.63±9.88	62.31±9.58	0.806
Glucose (mg/dL)	108.53±29.05	116.85±46.43	0.165
Cholesterol (mg/dL)	177.43±40.19	180.71±42.33	0.544
TG (mg/dL)	129.53±89.19	150.24±100.85	0.050
HDL (mg/dL)	46.64±12.03	43.91±10.30	0.084
LDL (mg/dL)	106.55±36.61	102.24±35.10	0.259

BMI, body mass index; ESS, Epworth sleepiness scale; REM sleep, rapid eye movement sleep; NREM sleep, non rapid eye movement sleep; AHI, apnea-hypopnea index; HR, heart rate; TG, triglyceride; HDL, high-density lipoprotein; LDL, low-density lipoprotein; HTN, hypertension.

Data with normal distribution are presented as mean±standard deviation.