Table 2.

Demographic and Symptom Characteristics for Obstructive Sleep Apnea (OSA) and Non-OSA Subjects

OSA (n = 23)Non-OSA (n = 77)χ2 (Contingency Coefficient)P
Male (%)39460.287 (0.54).592
Married (%)65589.60 (0.296).087
White (%)78821.37 (0.116).849
Employed, full time (%)61521.20 (0.109).878
Mean (SD)Mean (SD)tP
Age52.7 (13.8)53.3 (16.0)−0.152.880
BMI*34.9 (7.7)30.2 (6.6)2.79.006
ISI total score12.0 (6.7)6.4 (4.7)4.55.000
ESS total score10.9 (4.2)7.2 (3.7)4.12.000
  • * Body mass index (BMI) statistics are calculated for only 97 subjects (n = 22 OSA; n = 75 non-OSA).

  • ESS, Epworth Sleepiness Scale; ISI, Insomnia Severity Index.