Interpretation of the Swedish Self Evaluation of Communication Experiences after Laryngeal cancer: Cutoff levels and minimum clinically important differences.

Abstract

The purpose of this study was to establish minimum clinically important difference (MCID) scores for the Swedish Self-Evaluation of Communication Experiences after Laryngeal Cancer (S-SECEL) in order to facilitate clinical interpretation and identify cutoff values for voice rehabilitation. One hundred nineteen patients with laryngeal cancer completed the S-SECEL instrument and an anchor question regarding acceptability of speech in a social context pretreatment and 12-month postoncologic treatment. Receiver operating characteristic (ROC) curves analysis was used for calculation of cutoff values. Voice rehabilitation cutoff values were identified for all domains (Total = 20; General = 4; Environmental = 16, and Attitudinal = 5), presenting acceptable sensitivity and specificity. Initial MCID estimates were obtained for all domains; improvement of -13 points (p < .0001) or a deterioration of +8 points (p = .035) for the Total domain. MCID and cutoff scores for the S-SECEL have been identified and may be used in clinical practice to help identify patients with laryngeal cancer in need of voice rehabilitation.