Statistical model for prediction of hearing loss in patients receiving cisplatin chemotherapy.
نویسندگان
چکیده
IMPORTANCE This statistical model might be used to predict cisplatin-induced hearing loss, particularly in patients undergoing concomitant radiotherapy. OBJECTIVE To create a statistical model based on pretreatment hearing thresholds to provide an individual probability for hearing loss from cisplatin therapy and, secondarily, to investigate the use of hearing classification schemes as predictive tools for hearing loss. DESIGN Retrospective case-control study. SETTING Tertiary care medical center. PARTICIPANTS A total of 112 subjects receiving chemotherapy and audiometric evaluation were evaluated for the study. Of these subjects, 31 met inclusion criteria for analysis. MAIN OUTCOME MEASURES The primary outcome measurement was a statistical model providing the probability of hearing loss following the use of cisplatin chemotherapy. RESULTS Fifteen of the 31 subjects had significant hearing loss following cisplatin chemotherapy. American Academy of Otolaryngology-Head and Neck Society and Gardner-Robertson hearing classification schemes revealed little change in hearing grades between pretreatment and posttreatment evaluations for subjects with or without hearing loss. The Chang hearing classification scheme could effectively be used as a predictive tool in determining hearing loss with a sensitivity of 73.33%. Pretreatment hearing thresholds were used to generate a statistical model, based on quadratic approximation, to predict hearing loss (C statistic = 0.842, cross-validated = 0.835). The validity of the model improved when only subjects who received concurrent head and neck irradiation were included in the analysis (C statistic = 0.91). A calculated cutoff of 0.45 for predicted probability has a cross-validated sensitivity and specificity of 80%. CONCLUSIONS AND RELEVANCE Pretreatment hearing thresholds can be used as a predictive tool for cisplatin-induced hearing loss, particularly with concomitant radiotherapy.
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ورودعنوان ژورنال:
- JAMA otolaryngology-- head & neck surgery
دوره 139 3 شماره
صفحات -
تاریخ انتشار 2013