Table 2

Characteristics of patients who did or did not undergo the sleep study

No sleep study (n=450)Sleep study (n=50)p Value
Age (years)59.2±13.958.4±12.80.72
Male (%)225 (50)25 (50)1.0
Caucasians (%)310 (68)37 (74)0.52
BMI (kg/m2)28.2±5.328.4±4.90.83
Waist circumference (cm)99.0±14.895.8±18.50.15
Neck circumference (cm)38.9±4.238.8±4.10.93
Hypertension (%)364 (80)42 (84)0.70
Diabetes mellitus (%)159 (35)14 (28)0.34
Overweight (%)153 (34)19 (38)0.63
Obesity (%)205 (45)20 (40)0.54
High risk for OSA (%)233 (52)25 (50)0.88
Epworth Sleepiness Scale8.8±5.18.8±5.10.99
Excessive daytime sleepiness (%)170 (37)13 (26)0.12
  • Values are mean (±SD) or median (IQR) or percentage.

  • BMI, body mass index; OSA, obstructive sleep apnoea.