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Table 2 Concordance between MM and DISE at the anatomic levels (DISE group, n = 48)

From: Can drug-induced sleep endoscopy improve the success rates of tongue base surgery?

Obstruction levelMM 0MM 1MM 2kappaP-value
DISE 0DISE 1DISE 2
V0 (0%)20 (41.7%)28 (58.3%)0.1150.087
0 (0%)2 (4.2%)46 (95.8%)
O3 (62.5%)32 (66.7%)12 (25.0%)0.2410.005**
7 (14.6%)13 (27.1%)28 (58.3%)
T11 (22.9%)32 (66.7%)5 (10.4%)0.0170.865
0 (0%)24 (50.0%)24 (50.0%)
E44 (91.7%)2 (4.2%)1 (2.1%)0.1220.202
39 (81.3%)3 (6.3%)5 (10.4%)
  1. The degree of occlusion as per the nasopharyngoscopic study: 0 = no obstruction (0–25%), 1 = partial occlusion (25–75%), and 2 = complete occlusion (≥76%)
  2. Interpretation of kappa index: < 0, no agreement; 0–0.19, poor agreement; 0.20–0.39, fair agreement; 0.40–0.59, moderate agreement; 0.60–0.79, substantial agreement; 0.80–1.00, almost perfect agreement
  3. Abbreviations: MM Muller’s maneuver, DISE Drug-induced sleep endoscopy, V Velum, O Oropharynx lateral wall, T Tongue base, E Epiglottis
  4. * p < 0.05, **p < 0.01, ***p < 0.001; statistical analyses were performed using Cohen’s Kappa test