ObjectiveTo examine the experience in the routine use of the Palliative Prognostic Score (PaP score) as a predictor of survival in terminal cancer patients and to compare it with the estimation of the patients’ survival made by doctors, as well as comparing this with the actual survival of the patients. The survival data provided by the scale are also analyzed, together with the specific characteristics of the studied group. MethodsA prospective study was conducted on 100 consecutive patients with advanced terminal cancer admitted to a Hospital Palliative Care Unit. The PaP score was applied by 2 physicians, with at least 15 years experience, when the patients were admitted. This scale assesses 6 variables that give a score that classifies patients into 3 different probabilistic groups of survival at one month. One of these 6 variables was the physician's estimation, which was analyzed and compared with the predictions of the scale. The data were collected in a database and analyzed using IBM-SPSS version 18. Medians of survival were analyzed for each group established by the PaP score, and were compared with the actual and physician's predictions. The Spearman correlation coefficient between survivals was calculated by linear regression.The differences between the evaluations made by the 2 doctors were not compared as this was not the reason for the study. ResultsOf the 100 patients analyzed, the scale distinguished 3 different probabilistic groups of survival, analyzing the percentage of compliance to the scale:Group A; high probability of surviving one month, with a total number of 13 patients. In this group only 53.8% of cases survived.Group B; intermediate probability of surviving one month, with a total number of 32 patients, where the 90% of patients did not survive for one month.Group C; with low probability of surviving one month, with a total number of 55 patients, where the 96.4% of the cases did not survive for one month.The median survival, estimated by the scale (SE), estimated by the physician (SM), and the actual survival of patients (SR) was calculated.In group A, with a SE of 33 days, the SR was 31.69 days, and SM was 79.48 days; in group B with a SE of 13.5 days, the SR was 17.53 days and the SM was 48.36 days, and in group C with a SE of 7 days, the SR was 10.36 days with an SM of 21.7 days.In group A, the doctors overestimated 2.5 times above the actual survival, while in group B and C it was overestimated 2.75 and 2.09 times, respectively.The Spearman correlation coefficient between the actual and predicted survival by physicians was 0.64, indicating a good correlation, although with a tendency to overestimate. ConclusionsPaP score scale predictions were acceptably fulfilled in all 3 groups classified by the scale. The survival estimated by an experienced physician had an acceptable correlation when compared with actual survival, although with a tendency to overestimate. When the prognosis was worse, the physician predictions were better.
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