THE INFLUENCE OF CO-MORBID CONDITIONS ON THE SURVIVAL OF MALE PATIENTS WITH LARYNGEAL CANCER: RESULTS OF TEN YEARS OBSERVATION
DOI:
https://doi.org/10.11603/1681-2786.2021.2.12127Keywords:
laryngeal cancer, co-morbidity index, men, age, Kaplan-Mayer survival analysisAbstract
Purpose. To study the effect of co-morbid diseases on the survival of men with laryngeal cancer depending on age.
Materials and Methods. Epidemiological, medical-statistical and analytical methods are used in the work. The databases “Hospital Cancer Register” and the database of the Ternopil Regional Statistical Office on the population and mortality in the region for 2009–2019 were analyzed. Based on the calculated index of co-morbid conditions according to Charlson (1987) and the data of the official Hospital documentation “Report form № 20” the survival of patients with laryngeal cancer who were hospitalized in Ternopil Regional Clinical Oncology Dispensary was analyses.
Results. The survival function of patients with laryngeal cancer for the period 2009-2019 was analyzed by the method of multiple assessments (according to Kaplan-Mayer). It was found that the median survival in the general group of patients with laryngeal cancer was 914 days from the date of diagnosis (laryngeal cancer), and the 25th and 75th percentile of survival were 365 and 1986 days, respectively.
In the group of patients with laryngeal cancer in men younger than 60 years, the median survival was 580 days, and in the group older than 60 years – 578 days (without significant difference). However, a comparative statistical analysis of Cox’s F-test survival indicated a significant statistical difference in the survival of laryngeal cancer patients over 60 years of age and with a high co-morbidity index compared with the group of men less than 60 years of age and with a low co-morbidity index.
Conclusions. The cumulative survival rate of men with laryngeal cancer depends on the concomitant pathology detected at the time of diagnosis. The survival time of patients with laryngeal cancer in men over 60 years of age and a high co-morbidity index is shorter compared to the group of men less than 60 years and a low co-morbidity index. Male patients with laryngeal cancer older than 60 years and a high co-morbidity index require the elaborate of special treatment tactics, taking into account the identified co-morbid pathology.
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