Table 2 Univariate and multivariate logistic regression model to identify factors associated with positional and non-positional obstructive sleep apnea
From: Role of drug-induced sleep endoscopy in evaluation of positional vs non-positional OSA
Variables | Univariate | Multivariate | ||
|---|---|---|---|---|
Odds Ratio (95% CI) | P value | Odds Ratio (95% CI) | P value | |
Demographic data | ||||
Sex | 1.56 (0.76–3.20) | .222 | 0.86 (0.24–3.11) | .819 |
Age, years | 0.99 (0.95–1.02) | .438 | ||
BMI, kg/m2 | 1.20 (1.11–1.30) | < 0.001 | 1.11 (0.97–1.28) | .137 |
Neck circumference, cm | 1.18 (1.08–1.29) | < 0.001 | 0.95 (0.78–1.16 | .629 |
Epworth Sleepiness Scale | 0.97 (0.91–1.04) | .419 | ||
Physical Examination | ||||
Tonsil Size | 0.95 (0.61–1.48) | .822 | ||
Modified Mallampati score | 2.20 (1.30–3.73) | .003 | 1.49 (0.75–2.99) | .258 |
Retrognathia | 1.08 (0.44–2.67) | .867 | ||
Sleep Study Data | ||||
AHI, events/hr | 1.05 (1.04–1.07) | < 0.001 | 1.04 (1.03–1.06) | < 0.001 |
DISE findings | ||||
Velum | ||||
A-P | 0.70 (0.48–1.02) | .062 | 1.28 (0.79–2.07) | .310 |
Concentric | 1.74 (1.19–2.56) | .004 | 0.93 (0.58–1.49) | .767 |
Oropharynx | ||||
Lateral | 2.55 (1.64–3.97) | < 0.001 | 1.90 (1.08–3.33) | .027 |
Tongue base | ||||
A-P | 1.86 (1.22–2.82) | .004 | 1.27 (0.75–2.13) | .371 |
Epiglottis | ||||
A-P | 1.30 (0.86–1.97) | .220 | 1.64 (0.94–2.83) | .079 |
Lateral | 1.46 (0.78–2.70) | .235 | 1.54 (0.72–3.33) | .268 |