Assessment of Different Indices as Predictors of Difficult Airway in Obese Patients.

For positive correlation and negative correlation, the Pearson correlation coefficient was used with r < 0.3 as weak or no correlation, r = 0.3 to 0.5 as mild correlation, r = 0.5 to 0.7 as moderate correlation, r = 0.7 to 0.9 as strong correlation, and r > 0.9 as very strong to perfect correlation; the level of significance was represented as "p" where p > 0.05 = not significant, p <0.05 = significant, p <0.01 = highly significant, p <0.001 = very highly significant.

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